JP2001278647A - Raw material for civil engineering and construction and method of producing same - Google Patents
Raw material for civil engineering and construction and method of producing sameInfo
- Publication number
- JP2001278647A JP2001278647A JP2000094103A JP2000094103A JP2001278647A JP 2001278647 A JP2001278647 A JP 2001278647A JP 2000094103 A JP2000094103 A JP 2000094103A JP 2000094103 A JP2000094103 A JP 2000094103A JP 2001278647 A JP2001278647 A JP 2001278647A
- Authority
- JP
- Japan
- Prior art keywords
- civil engineering
- sludge
- cement
- weight
- building material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
- C04B40/0608—Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、焼却灰やヘドロ
や、コンクリート用骨材や軽量骨材の製造時における大
きさを均一化するための研磨洗浄時とか採石場での採石
物洗浄時に発生する石粉とか、コンクリート構造物の解
体時に回収した砂とセメントとの混合物である再生粉な
どを、軽量コンクリートブロック、路床材、路盤材、歩
道用の敷石材などの土木建築材の素材として用いること
ができるようにするための土木建築材素材および土木建
築材素材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of incinerated ash, sludge, concrete aggregates and lightweight aggregates during polishing and washing to make the size uniform, and during quarry washing at quarries. Stone powder or recycled powder, which is a mixture of sand and cement collected during the demolition of concrete structures, is used as a material for civil engineering construction materials such as lightweight concrete blocks, subgrade materials, subgrade materials, and paving stones for sidewalks TECHNICAL FIELD The present invention relates to a civil engineering building material and a method for manufacturing the civil engineering building material so that the material can be used.
【０００２】[0002]
【従来の技術】従来、焼却灰やヘドロや石粉や再生粉な
どを処理して再生骨材を作製し、それらの再生骨材に固
化材としてセメントを加え、軽量コンクリートブロッ
ク、路床材、路盤材、歩道用の敷石材の土木建築材など
が作製されており、この種のものとして、特開平８−２
０８２９１号公報に開示されるものがあった。2. Description of the Related Art Conventionally, incinerated ash, sludge, stone powder, regenerated powder, and the like are processed to produce regenerated aggregate, and cement is added to the regenerated aggregate as a solidifying material. Materials, civil construction materials such as paving stones for sidewalks, and the like are produced.
There was one disclosed in Japanese Patent Application Laid-Open No. 08291.
【０００３】上記公報例によれば、ヘドロまたは焼却灰
に、砕石、塩化カルシウムイオン交換水、硫酸アンモニ
ウム、酸化カルシウム、セメントからなる添加材料をミ
キサーによって混合攪拌し、大きさ形状が一定しない、
砂状ないし外径が10mm程度の採石状の骨材素材を作製す
る。次いで、それらの骨材素材に砕石粉または砂をミキ
サーによって混合攪拌し、骨材素材の表面に砕石粉また
は砂を付着させ、製品としての骨材を得ている。[0003] According to the above publication, an additive material consisting of crushed stone, calcium chloride ion-exchanged water, ammonium sulfate, calcium oxide, and cement is mixed and stirred into sludge or incinerated ash, and the size and shape are not constant.
A sandy or quarry-shaped aggregate material with an outer diameter of about 10 mm is produced. Subsequently, the crushed stone powder or sand is mixed and stirred with the aggregate material by a mixer, and the crushed stone powder or sand is adhered to the surface of the aggregate material to obtain an aggregate as a product.
【０００４】上述のようにして得られた骨材に、固化材
としてセメントを混和し、前述した土木建築材などのコ
ンクリート製品を作製している。[0004] The aggregate obtained as described above is mixed with cement as a solidifying material to produce concrete products such as civil engineering and building materials described above.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来例
の場合、焼却灰やヘドロや石粉や再生粉などを処理し
て、従来の骨材と同様の骨材を作製するものであり、土
木建築材などのコンクリート製品の作製に際しては、新
たにセメントなどの固化材が必要であり、従来の骨材の
代替品に過ぎないものであった。However, in the case of the conventional example, incineration ash, sludge, stone powder, regenerated powder, and the like are processed to produce an aggregate similar to the conventional aggregate. For the production of concrete products such as the above, a new solidifying material such as cement is required, which is only a substitute for the conventional aggregate.
【０００６】本発明は、このような事情に鑑みてなされ
たものであって、焼却灰、ヘドロ、石粉、再生粉を利用
するものでありながら、水を加えるだけで土木建築材を
作製できる土木建築材素材ならびにその製造方法を提供
することを目的とする。[0006] The present invention has been made in view of such circumstances, and uses civil incineration ash, sludge, stone powder, and regenerated powder, and is capable of producing a civil engineering building material only by adding water. It is an object of the present invention to provide a building material and a method for manufacturing the same.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る発明の土
木建築材素材は、上述のような目的を達成するために、
焼却灰、ヘドロ、石粉、再生粉のうちの少なくとも一種
５０〜９０重量％と、セメント１０〜５０重量％とを含
有し、内部または／および表面に未水和のセメントを含
んだ粒径２．５〜３０mmの粒状体に造粒して構成する。According to the first aspect of the present invention, there is provided a material for civil engineering and construction material, in order to achieve the above object.
1. Particle size containing 50 to 90% by weight of at least one of incineration ash, sludge, stone powder, and regenerated powder and 10 to 50% by weight of cement and containing unhydrated cement inside or / and on the surface. It is formed by granulating into granules of 5 to 30 mm.
【０００８】ここで、再生粉とは、コンクリート構造物
の解体時に回収した砂とセメントとの混合物のことをい
う。焼却灰、ヘドロ、石粉、再生粉の含有量は５０〜９
０重量％である。５０重量％未満では、廃棄物の利用量
が少なく、実用的でなく、一方、９０重量％を越えると
必要強度を得にくいからである。セメントの含有量は１
０〜５０重量％である。１０重量％未満では、未水和の
セメント量が少なくなって必要強度を得にくく、一方、
５０重量％を越えると、廃棄物の利用量が少なく高価と
なり、実用的でないからである。Here, the recycled powder refers to a mixture of sand and cement collected at the time of dismantling a concrete structure. The content of incineration ash, sludge, stone powder and regenerated powder is 50-9
0% by weight. If the amount is less than 50% by weight, the amount of waste is small and not practical, while if it exceeds 90% by weight, it is difficult to obtain the required strength. The cement content is 1
0 to 50% by weight. If the content is less than 10% by weight, the amount of unhydrated cement is reduced, and it is difficult to obtain the required strength.
If it exceeds 50% by weight, the amount of waste is small and expensive, which is not practical.
【０００９】造粒処理としては、回転式の造粒機で球状
の粒状体を作製するものでも、押し出し式の造粒機で紐
状体を押し出して所定長さごとに切断することによって
円柱状の粒状体を作製するものでも良い。円柱状の粒状
体の場合には、その切断長さが円径の０．５〜２．０倍
になるように作製する。[0009] As the granulation process, even when a spherical granule is produced by a rotary granulator, a string is extruded by an extruder and cut into a columnar shape by cutting at a predetermined length. May be used to produce the granular material. In the case of a columnar granular material, it is manufactured such that the cut length is 0.5 to 2.0 times the circular diameter.
【００１０】粒状体の粒径は２．５〜３０mmである。上
述円柱状の粒状体の場合の粒径とは、円径および切断長
さのいずれをも指称し、円径および切断長さのいずれも
が２．５〜３０mmになるようにする。２．５mm未満で
は、粒状体間に水が浸透しにくくて粒状体どうしの結合
力が弱くなり、土木建築材としての必要強度を得にくく
なり、一方、３０mmを越えると、粒状体間の空間面積が
大きくなり、かつ、粒状体どうしの接触面積が減少し、
土木建築材としての必要強度を得にくくなるからであ
る。The particle size of the granular material is 2.5 to 30 mm. The particle size in the case of the above-mentioned columnar granular material refers to both the circular diameter and the cut length, and both the circular diameter and the cut length are set to be 2.5 to 30 mm. If it is less than 2.5 mm, it is difficult for water to penetrate between the granules, and the bonding strength between the granules becomes weak, and it becomes difficult to obtain the necessary strength as a civil engineering building material. On the other hand, if it exceeds 30 mm, the space between the granules The area increases, and the contact area between the granular materials decreases,
This is because it becomes difficult to obtain the necessary strength as a civil engineering building material.
【００１１】また、請求項２に係る発明の土木建築材素
材は、請求項１に係る発明の土木建築材素材における粒
状体の内部または／および表面にポゾラン系物質を含む
ように構成する。ポゾラン系物質としては、フライアッ
シュ、シリカヒュームなどの人工品や火山灰や珪酸白土
などの天然品などが用いられる。The civil engineering building material according to the second aspect of the present invention is configured such that the inside or / and the surface of the granular material in the civil engineering building material according to the first aspect of the present invention contains a pozzolanic substance. As the pozzolan-based material, artificial products such as fly ash and silica fume, and natural products such as volcanic ash and silicate clay are used.
【００１２】また、請求項３に係る発明の土木建築材素
材は、請求項１または請求項２に係る発明の土木建築材
素材における粒状体の表面をセメント層またはポゾラン
系物質の皮膜で被覆して構成する。皮膜の厚みは、０．
５〜２mm程度であれば良い。０．５mm未満では効果が無
く、一方、２mmを越えると被覆そのものがしづらくて製
造が困難になり、また、セメントまたはポゾラン系物質
の量が多くなって材料費が高価になるからである。被覆
処理としては、回転式造粒機が効果的で、造粒された後
にセメントまたはポゾラン系物質を散布しながら回転を
継続し、雪だるまの生成と同様にして処理すれば良い。Further, the civil engineering building material according to the third aspect of the present invention is the civil engineering building material according to the first or second aspect of the present invention, wherein the surface of the granular material is covered with a cement layer or a film of a pozzolanic substance. It is composed. The thickness of the film is 0.
It may be about 5 to 2 mm. If the thickness is less than 0.5 mm, there is no effect. On the other hand, if the thickness exceeds 2 mm, the coating itself is difficult and the production becomes difficult. In addition, the amount of cement or pozzolanic substance increases and the material cost increases. As the coating treatment, a rotary granulator is effective. After the granulation, the rotation may be continued while the cement or the pozzolanic substance is being sprayed, and the treatment may be performed in the same manner as the production of a snowman.
【００１３】そして、請求項４に係る発明の土木建築材
素材の製造方法は、焼却灰、ヘドロ、石粉、再生粉のう
ちの少なくとも一種５０〜７５重量％と、水１５〜５０
重量％と、セメント１０〜５０重量％とを混合して攪拌
処理し、その混合物を粒径２．５〜３０mmに造粒処理
し、内部または／および表面に未水和のセメントを含む
粒状体を作製することを特徴としている。攪拌処理は、
汎用のミキサーを用いれば良い。According to a fourth aspect of the present invention, there is provided a method for producing a civil engineering building material, wherein at least one of incinerated ash, sludge, stone powder, and recycled powder is 50 to 75% by weight, and water is 15 to 50% by weight.
% By weight and 10 to 50% by weight of cement and agitating the mixture, granulating the mixture to a particle size of 2.5 to 30 mm, and granules containing unhydrated cement inside or / and on the surface. Is produced. The stirring process is
A general-purpose mixer may be used.
【００１４】また、請求項５に係る発明の土木建築材素
材の製造方法は、再生粉、石粉のうちの少なくとも一種
または／およびヘドロを含んだ泥水を、含水比１５〜５
０重量％まで濃縮処理し、その濃縮処理物５０〜９０重
量％にセメント１０〜５０重量％を混合して攪拌処理
し、その混合物を粒径２．５〜３０mmに造粒処理し、内
部または／および表面に未水和のセメントを含む粒状体
を作製することを特徴としている。濃縮処理としては、
フィルタープレス型脱水機や遠心脱水機やベルトプレス
型脱水機など各種のものが適用できる。The method for producing a civil engineering and building material according to the invention according to claim 5 is characterized in that the muddy water containing at least one of recycled powder and stone powder and / or sludge is contained in a water content of 15 to 5%.
0% by weight, 50-90% by weight of the concentrated product is mixed with 10-50% by weight of cement, and the mixture is stirred. The mixture is granulated to a particle size of 2.5-30 mm, And / or producing granules containing unhydrated cement on the surface. As the concentration process,
Various types such as a filter press dehydrator, a centrifugal dehydrator, and a belt press dehydrator can be applied.
【００１５】また、請求項６に係る発明の土木建築材素
材の製造方法は、請求項４または請求項５に係る発明の
土木建築材素材の製造方法におけ攪拌処理に先立って、
ポゾラン系物質１０〜３０重量部を混合する。１０重量
部未満では増強効果が低く、一方、３０重量部を越える
と、高価になるからである。In the method for manufacturing a civil engineering building material according to the invention according to claim 6, the method for manufacturing a civil engineering building material according to claim 4 or 5, prior to the stirring treatment,
10 to 30 parts by weight of a pozzolanic substance is mixed. If the amount is less than 10 parts by weight, the enhancing effect is low, while if it exceeds 30 parts by weight, the cost becomes high.
【００１６】また、請求項７に係る発明の土木建築材素
材の製造方法は、請求項４、請求項５、請求項６のいず
れかに係る発明の土木建築材素材の製造方法における粒
状体の表面をセメント層またはポゾラン系物質の皮膜で
被覆する。The method for producing a civil engineering building material according to the present invention according to claim 7 is a method for producing a civil engineering building material according to any one of claims 4, 5, and 6. The surface is covered with a cement layer or a film of a pozzolanic material.
【００１７】[0017]
【作用】請求項１に係る発明の土木建築材素材の構成に
よれば、内部または／および表面に未水和のセメントを
含んだ粒状体であるために、水を加えることによりポゾ
ラン反応を生じさせ、粒状体どうしを強固に付着結合し
て、土木建築材を作製できる。According to the construction material for civil engineering and construction materials of the first aspect of the present invention, since it is a granular material containing unhydrated cement inside or / and on the surface, a pozzolanic reaction is caused by adding water. Then, the granular materials can be firmly adhered and bonded to each other to produce a civil engineering building material.
【００１８】また、請求項２に係る発明の土木建築材素
材の構成によれば、内部または／および表面に、未水和
のセメントに加えてをポゾラン系物質を含んだ粒状体で
あるために、水を加えることによりポゾラン反応を生じ
させ、粒状体どうしを強固に付着結合して、土木建築材
を作製できる。Further, according to the construction of the civil engineering building material according to the second aspect of the present invention, since it is a granular material containing a pozzolanic material in addition to unhydrated cement on the inside or / and surface thereof, By adding water, a pozzolanic reaction is caused, and the granular materials are firmly adhered and bonded to each other to produce a civil engineering building material.
【００１９】また、請求項３に係る発明の土木建築材素
材の構成によれば、水を加えることにより、粒状体の表
面の皮膜にもポゾラン反応を生じさせ、粒状体どうしを
より強固に付着結合し、土木建築材を作製できる。Further, according to the construction of the civil engineering building material according to the third aspect of the present invention, by adding water, a pozzolanic reaction is caused on the film on the surface of the granular material, and the granular material is more firmly adhered to each other. Combine to produce civil engineering and building materials.
【００２０】そして、請求項４に係る発明の土木建築材
素材の製造方法の構成によれば、焼却灰、ヘドロ、石
粉、再生粉のうちの少なくとも一種と、水と、セメント
とを適量混合して攪拌処理した後に造粒処理し、内部ま
たは／および表面に未水和のセメントを含み、水を加え
ることによりポゾラン反応を生じさせることのできる粒
状体を作製できる。According to the construction of the method for manufacturing a civil engineering and building material of the invention according to claim 4, at least one of incinerated ash, sludge, stone powder, and regenerated powder is mixed with a suitable amount of water and cement. Then, the mixture is subjected to a granulation treatment, followed by a granulation treatment, containing unhydrated cement inside or / and on the surface, and producing a granular material capable of causing a pozzolan reaction by adding water.
【００２１】また、請求項５に係る発明の土木建築材素
材の製造方法の構成によれば、再生粉、石粉のうちの少
なくとも一種または／およびヘドロを含んだ泥水を、所
定の含水比まで濃縮処理してから適量のセメントを混合
して攪拌処理した後に造粒処理し、内部または／および
表面に未水和のセメントを含み、水を加えることにより
ポゾラン反応を生じさせることのできる粒状体を作製で
きる。Further, according to the construction of the method for producing a civil engineering building material according to the fifth aspect of the invention, muddy water containing at least one of recycled powder and stone powder and / or sludge is concentrated to a predetermined water content. After the treatment, an appropriate amount of cement is mixed and agitated, followed by granulation. The granules containing unhydrated cement inside or / and on the surface and capable of causing a pozzolanic reaction by adding water are produced. Can be made.
【００２２】また、請求項６に係る発明の土木建築材素
材の製造方法の構成によれば、攪拌処理に先立ってポゾ
ラン系物質を混合し、内部または／および表面に未水和
のセメントとポゾラン系物質とを含み、水を加えること
によりポゾラン反応を生じさせることのできる粒状体を
作製できる。Further, according to the construction of the method for producing a civil engineering building material of the invention according to claim 6, a pozzolan-based substance is mixed prior to the stirring treatment, and the unhydrated cement and pozzolan are internally or / and / or surface-treated. A particulate material containing a base substance and capable of causing a pozzolanic reaction by adding water can be produced.
【００２３】また、請求項７に係る発明の土木建築材素
材の製造方法の構成によれば、水を加えることにより、
粒状体の表面に被覆されたセメント層またはポゾラン系
物質の皮膜においてポゾラン反応を生じさせることので
きる粒状体を作製できる。Further, according to the construction of the method for producing a civil engineering building material of the invention according to claim 7, by adding water,
A granule capable of causing a pozzolanic reaction in a cement layer or a pozzolan-based material film coated on the surface of the granule can be produced.
【００２４】[0024]
【発明の実施の形態】次に、本発明の実施例を図面に基
づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.
【００２５】図１は、本発明の土木建築材素材の製造方
法に係る実施例を示す全体概略構成図であり、コンクリ
ート用骨材や軽量骨材の製造時における大きさを均一化
するための研磨洗浄時とか採石場での採石物洗浄時に発
生する、石粉を含んだ泥水を原水として沈澱槽１に供給
するとともに高分子凝集剤を注入する。FIG. 1 is an overall schematic diagram showing an embodiment of a method for producing a civil engineering and building material according to the present invention, and is used for uniformizing the size of concrete and lightweight aggregates during production. Muddy water containing stone powder, which is generated during polishing washing or quarry washing at a quarry, is supplied as raw water to the precipitation tank 1 and a polymer flocculant is injected.
【００２６】沈澱槽１内で、第１の攪拌装置２により緩
速で回転攪拌し、汚泥を沈降分離させ、上澄み液は清水
タンク３に回収し、沈降分離された汚泥はスラリーポン
プ４により濃縮タンク５に供給する。図面上、濃縮タン
ク５は沈澱槽１と同じような大きさに記載しているが、
例えば、沈澱槽１が直径３０ｍで高さ６ｍであるのに対
して濃縮タンク５が直径５ｍで高さ６ｍといったよう
に、容量的には、沈澱槽１よりも大幅に小さいものであ
る。The sludge is settled and separated in the settling tank 1 at a low speed by the first stirrer 2, and the sludge is settled and separated. The supernatant liquid is collected in the fresh water tank 3, and the settled and separated sludge is concentrated by the slurry pump 4. Supply to tank 5. In the drawing, the concentration tank 5 is described in the same size as the sedimentation tank 1,
For example, the sedimentation tank 1 is 30 m in diameter and 6 m in height, while the concentration tank 5 is 5 m in diameter and 6 m in height.
【００２７】濃縮タンク５内で、第２の攪拌装置６によ
り回転攪拌し、汚泥を濃縮処理する。濃縮処理された汚
泥を高圧スラリーポンプ７によりフィルタープレス型脱
水機８に供給し、含水比３０重量％以下になるようによ
り一層濃縮処理する。The sludge is concentrated in the concentration tank 5 by rotary stirring by the second stirring device 6. The concentrated sludge is supplied to a filter press type dehydrator 8 by a high-pressure slurry pump 7 to further concentrate the sludge so that the water content becomes 30% by weight or less.
【００２８】フィルタープレス型脱水機８には、図２の
一部省略斜視図に示すように、第１のガイドレール９に
沿って、鉛直姿勢を維持した状態で移動可能に濾板１０
が設けられ、その濾板１０の両側に水切りネット１１が
設けられるとともに、両水切りネット１１を覆うように
濾布１２が設けられ、その中心部がフランジ１３を介し
て一体化されている。As shown in a partially omitted perspective view of FIG. 2, the filter press type dewatering machine 8 has a filter plate 10 movably along a first guide rail 9 while maintaining a vertical posture.
The draining nets 11 are provided on both sides of the filter plate 10, and a filter cloth 12 is provided so as to cover the draining nets 11, and the central part thereof is integrated via a flange 13.
【００２９】隣合う濾板１０間に位置されるとともに、
第２のガイドレール１４に沿って移動可能に、かつ、傾
斜可能に濾枠１５が設けられ、その濾枠１５のゴムシー
ル枠１６に環状のゴムシール１７が取り付けられてい
る。While being located between adjacent filter plates 10,
A filter frame 15 is provided movably and tiltably along the second guide rail 14, and an annular rubber seal 17 is attached to a rubber seal frame 16 of the filter frame 15.
【００３０】図１および図３の一部省略縦断面図に示す
ように、濾板１０と濾枠１５の並列方向の一端側に可動
プレート１８が設けられるとともにその可動プレート１
８に油圧シリンダ１９が連結され、他端側に固定プレー
ト２０が設けられるとともにその固定プレート２０に汚
泥供給管２１が接続されている。As shown in the partially omitted vertical sectional views of FIGS. 1 and 3, a movable plate 18 is provided at one end of the filter plate 10 and the filter frame 15 in the parallel direction.
8, a hydraulic cylinder 19 is connected, a fixed plate 20 is provided on the other end side, and a sludge supply pipe 21 is connected to the fixed plate 20.
【００３１】フランジ１３それぞれが中空筒状に形成さ
れていて、図３に示すように、可動プレート１８により
押し込み、濾布１２それぞれにゴムシール１７を圧接し
た状態で、濾布１２とゴムシール１７とで形成される処
理空間Ｓ内に、汚泥供給管２１からフランジ１３を通じ
て濃縮タンク５からの濃縮汚泥を供給するように構成さ
れている。Each of the flanges 13 is formed in a hollow cylindrical shape, and as shown in FIG. 3, the filter cloth 12 and the rubber seal 17 are pressed together by the movable plate 18 and the rubber seals 17 are pressed against the respective filter cloths 12. The concentrated sludge from the concentration tank 5 is supplied from the sludge supply pipe 21 through the flange 13 into the formed processing space S.
【００３２】処理空間Ｓの下方には、図１および図３に
示すように、濾過した水を受け止めて回収する樋２２が
設けられ、この樋２２が、図４の一部省略側面図に示す
ように、処理空間Ｓの真下の位置と、真下から退避して
汚泥ケーキ（フィルタープレス型脱水機８によって濃縮
処理された後の石粉を含んだ汚泥のことを称する）の落
下の邪魔にならない位置とに移動可能に構成されてい
る。As shown in FIGS. 1 and 3, a gutter 22 for receiving and recovering filtered water is provided below the processing space S. This gutter 22 is shown in a partially omitted side view of FIG. As described above, the position just below the processing space S and the position retreating from just below and not obstructing the falling of the sludge cake (referred to as the sludge containing stone powder after being concentrated by the filter press type dehydrator 8). And it is configured to be movable.
【００３３】図１に示すように、樋２２から清水タンク
３への濾過水の回収経路途中に、濾過時間調整装置２３
が介装されている。この濾過時間調整装置２３には、図
示しないが、樋２２からの濾過水の一部を流入するセン
サー用タンクが設けられるとともにそのセンサー用タン
ク内にフローティングスイッチが設けられ、濾過処理の
終了を検出するようになっている。As shown in FIG. 1, a filtration time adjusting device 23 is provided on the way of collecting filtered water from the gutter 22 to the fresh water tank 3.
Is interposed. Although not shown, the filtration time adjusting device 23 is provided with a sensor tank into which a part of the filtered water flows from the gutter 22, and a floating switch is provided in the sensor tank to detect the end of the filtration process. It is supposed to.
【００３４】すなわち、センサー用タンクの下部に排水
口が設けられ、濾過処理状態では、センサー用タンク内
への濾過水の流入量が排水口からの排水量よりも多くて
オーバーフローし、フローティングスイッチが浮上状態
に維持される。そして、汚泥供給管２１からの濃縮汚泥
の供給が停止されて濾過水の流入量が排水口からの排水
量よりも少なくなるに伴い、濾過水がオーバーフローせ
ず、センサー用タンク内での液面が低下してフローティ
ングスイッチが下降し、これにより濾過処理の終了を検
出するようになっている。That is, a drain port is provided at the lower part of the sensor tank, and in the filtering state, the amount of filtered water flowing into the sensor tank is larger than the amount of drain water from the drain port and overflows, and the floating switch rises. Maintained in state. Then, as the supply of the concentrated sludge from the sludge supply pipe 21 is stopped and the inflow of the filtered water becomes smaller than the drainage from the drain port, the filtered water does not overflow, and the liquid level in the sensor tank is reduced. Then, the floating switch is lowered and lowered, thereby detecting the end of the filtering process.
【００３５】上述のようにして濾過処理の終了を検出す
るに伴い、樋２２が処理空間Ｓの真下から退避するとと
もに、油圧シリンダ１９により可動プレート１８が固定
プレート２０から離れる側に移動するようになってい
る。When the end of the filtration process is detected as described above, the gutter 22 is retracted from immediately below the processing space S, and the movable plate 18 is moved by the hydraulic cylinder 19 away from the fixed plate 20. Has become.
【００３６】図５の一部省略縦断面図に示すように、濾
板１０の上部側と隣り合う一方の濾枠１５の上端、なら
びに、濾板１０の下部側と隣り合う他方の濾枠１５の下
端それぞれがチェーン２４を介して連結され、可動プレ
ート１８が固定プレート２０から離れる側に移動するに
伴って濾枠１５が傾斜し、濾過処理された汚泥ケーキが
濾布１２から剥離されてゴムシール１７内に保持され、
所定角度傾斜するに伴って、保持された汚泥ケーキが自
重によって落下するようになっている。As shown in a partially omitted vertical sectional view of FIG. 5, the upper end of one filter frame 15 adjacent to the upper side of the filter plate 10 and the other filter frame 15 adjacent to the lower side of the filter plate 10. Are connected via a chain 24, and as the movable plate 18 moves away from the fixed plate 20, the filter frame 15 tilts, and the filtered sludge cake is peeled off from the filter cloth 12 and a rubber seal is formed. 17 held within,
The sludge cake that is held falls under its own weight as it inclines at a predetermined angle.
【００３７】上述のようにして濃縮処理された汚泥ケー
キはベルトコンベア（図示せず）などで取り出し、図１
に示すように、回転造粒機２５に供給する。The sludge cake concentrated as described above is taken out by a belt conveyor (not shown) or the like.
As shown in FIG.
【００３８】回転造粒機２５には、汚泥ケーキ８０重量
％に対してセメント２０重量％を投入混合し、回転数60
0rpm以上で攪拌し、混合後に回転数を500rpm程度まで下
げて造粒する。造粒後に回転数を400rpmまで下げ、その
状態で造粒物８０重量％に対してフライアッシュ２０重
量％を散布し、造粒物の表面に付着させ、造粒物を被覆
する。In the rotary granulator 25, 80% by weight of the sludge cake and 20% by weight of the cement are charged and mixed.
Stir at 0 rpm or more, and after mixing, reduce the number of revolutions to about 500 rpm and granulate. After the granulation, the number of revolutions is reduced to 400 rpm, and in that state, 20% by weight of fly ash is scattered with respect to 80% by weight of the granulated material, and adhered to the surface of the granulated material to coat the granulated material.
【００３９】以上の処理により、土木建築材素材として
の、粒径２０mm程度の内部または／および表面に未水和
のセメントを含む粒状体を製造する。By the above treatment, a granular material having a particle diameter of about 20 mm and containing unhydrated cement on the inside and / or the surface is manufactured as a civil engineering building material.
【００４０】上述濃縮処理としては、石粉を含んだ泥水
を、含水比１５〜５０重量％まで濃縮処理すれば良く、
また、濃縮処理物５０〜９０重量％に対してはセメント
を１０〜５０重量％混合して攪拌処理するものであれば
良い。また、混合物を造粒処理する粒径としては、２．
５〜３０mmにするのが良い。As the above-described concentration treatment, muddy water containing stone powder may be concentrated to a water content of 15 to 50% by weight.
Further, it is sufficient that the cement is mixed with 10 to 50% by weight with respect to 50 to 90% by weight of the concentrated product and then the mixture is stirred. The particle size for granulating the mixture is 2.
It is good to make it 5-30 mm.
【００４１】上記土木建築材素材の製造方法は、ヘド
ロ、または、ヘドロと石粉との混合物とか、ヘドロと再
生粉との混合物、あるいは、ヘドロと石粉と再生粉との
混合物を含んだ泥水にも適用できる。また、前述した攪
拌処理に先立って、フライアッシュ、シリカヒュームな
どの人工品や火山灰や珪酸白土などの天然品などのポゾ
ラン系物質を１０〜３０重量部混合するようにしても良
い。The above-mentioned method for producing a civil engineering building material is applicable to muddy water containing sludge, a mixture of sludge and stone powder, a mixture of sludge and recycled powder, or a mixture of sludge, stone powder and recycled powder. Applicable. Prior to the above-mentioned stirring treatment, 10 to 30 parts by weight of a pozzolanic substance such as an artificial product such as fly ash or silica fume or a natural product such as volcanic ash or silicate clay may be mixed.
【００４２】次に、得られた土木建築材素材としての粒
状体を用いて、軽量コンクリートブロック、路床材、路
盤材、歩道用の敷石材などの土木建築材を作製する一例
について説明する。Next, an example of manufacturing civil engineering building materials such as lightweight concrete blocks, subgrade materials, subgrade materials, and paving stones for sidewalks using the obtained granular material as civil engineering building material will be described.
【００４３】図６の（ａ）の断面図に示すように、作製
しようとする土木建築材に対応する型枠２６内に必要量
の土木建築材素材としての粒状体Ａを充填し、その粒状
体Ａの表面を濡らす程度に水を加え、セメントの水和お
よびポゾラン反応を生じさせて粒状体Ａどうしを結合し
て固化させる。固化した後に、図６の（ｂ）の断面図に
示すように、型枠２６を脱型し、粒状体Ａ間に適度な透
水路が形成された土木建築材Ｂを作製する。As shown in the cross-sectional view of FIG. 6A, a required amount of granular material A as a civil engineering building material is filled in a formwork 26 corresponding to the civil engineering building material to be produced, and Water is added to the extent that the surface of the body A is wetted, causing the hydration of the cement and the pozzolanic reaction to bind and solidify the granular bodies A. After solidification, as shown in the cross-sectional view of FIG. 6B, the mold 26 is removed from the mold, and a civil engineering building material B in which an appropriate water passage is formed between the granular materials A is manufactured.
【００４４】得られた土木建築材Ｂでは、図７の（ａ）
の断面図に示すように、粒状体Ａどうしの表面が強固に
付着結合しているものである。In the obtained civil engineering building material B, FIG.
As shown in the cross-sectional view, the surfaces of the granular materials A are firmly adhered and bonded.
【００４５】泥水状態でないヘドロや石粉や再生粉ある
いは焼却灰を用いて土木建築材素材を製造する場合に
は、上述濃縮処理をせずに、ヘドロや石粉や再生粉は焼
却灰のうちの少なくとも一種と、水と、セメントとを適
量づつ混合して攪拌処理し、その混合物を所定の粒径
（前述の場合と同様に２．５〜３０mm）に造粒処理し、
内部または／および表面に未水和のセメントを含む粒状
体を作製する。In the case of producing a civil engineering building material using sludge, stone powder, regenerated powder or incinerated ash which is not in a muddy state, sludge, stone powder or regenerated powder is at least one of the incinerated ash without the above-mentioned concentration treatment. One kind, water, and cement are mixed in appropriate amounts and agitated, and the mixture is granulated to a predetermined particle size (2.5 to 30 mm as in the case described above),
A granulate containing unhydrated cement inside or / and on the surface is produced.
【００４６】この土木建築材素材の製造においての混合
率としては、強度面、ならびに、内部または／および表
面に未水和のセメントを含ませる面から、焼却灰、ヘド
ロ、石粉、再生粉のうちの少なくとも一種５０〜７５重
量％、水１５〜５０重量％、セメント１０〜５０重量％
にする。The mixing ratio in the production of the material for civil engineering and building materials may be selected from incineration ash, sludge, stone powder, and regenerated powder in view of the strength and the surface containing unhydrated cement inside and / or the surface. 50 to 75% by weight of water, 15 to 50% by weight of water, 10 to 50% by weight of cement
To
【００４７】また、別の実施例としては、上述のように
して得られた粒状体を、セメントまたはフライアッシ
ュ、シリカヒュームなどの人工品や火山灰や珪酸白土な
どの天然品などのポゾラン系物質を収容した処理槽内に
投入して攪拌混合し、図７の（ｂ）の断面図に示すよう
に、粒状体Ａの表面をセメント層またはポゾラン系物質
の皮膜Ｃで被覆するようにしても良い。Further, as another embodiment, the granules obtained as described above are mixed with pozzolanic substances such as cement or artificial products such as fly ash and silica fume and natural products such as volcanic ash and silicate clay. It may be put into the accommodated treatment tank, stirred and mixed, and the surface of the granular material A may be coated with a cement layer or a film C of a pozzolanic substance, as shown in the cross-sectional view of FIG. .
【００４８】この別の実施例によれば、水を加えたとき
に、粒状体Ａの表面においてポゾラン反応を良好に生じ
させることができ、粒状体Ａどうしの結合強度を高くで
き、高強度の土木建築材を作製することができる利点を
有している。According to this another embodiment, when water is added, the pozzolanic reaction can be satisfactorily generated on the surface of the granular material A, and the bonding strength between the granular materials A can be increased. It has the advantage that civil engineering building materials can be produced.
【００４９】また、土木建築材の作製に際して、型枠内
に充填された粒状体の上方から、例えば、水酸化ナトリ
ウム溶液などのアルカリ水溶液を撒布し、粒状体の表面
を活性化させ、粒状体Ａどうしの結合強度を高くするよ
うにしても良い。When fabricating civil engineering materials, an alkaline aqueous solution such as a sodium hydroxide solution is sprayed from above the granular material filled in the formwork to activate the surface of the granular material. The connection strength between A may be increased.
【００５０】[0050]
【発明の効果】以上説明したように、請求項１に係る発
明の土木建築材素材によれば、水を加えるだけで、内部
または／および表面に含まれた未水和のセメントの水和
およびポゾラン反応を生じさせて粒状体どうしを強固に
付着結合させて土木建築材を作製できるから、従来のよ
うに、土木建築材の作製に際して更にセメントと攪拌混
合するといったことが不要で、容易にかつ便利に土木建
築材を作製でき、極めて有用である。As described above, according to the civil engineering building material of the first aspect of the present invention, the hydration of the unhydrated cement contained inside or / and on the surface can be achieved only by adding water. Since a pozzolanic reaction is caused to attach and bond the granular materials firmly to each other to produce a civil engineering building material, it is not necessary to stir and mix the cement with the cement at the time of producing the civil engineering building material as in the past, and it is easy and easy. It is very useful because civil engineering and building materials can be produced conveniently.
【００５１】また、請求項２に係る発明の土木建築材素
材によれば、水を加えるだけで、内部または／および表
面に含まれた未水和のセメントとポゾラン系物質とがポ
ゾラン反応を生じて粒状体どうしをより強固に付着結合
させて土木建築材を作製できるから、容易にかつ便利に
強度の高い土木建築材を作製でき、汎用性が高くて一層
有用である。Further, according to the material for civil engineering and construction material of the second aspect of the invention, the pozzolanic reaction between the unhydrated cement and the pozzolanic substance contained inside or / and on the surface is caused only by adding water. Since the civil engineering building material can be manufactured by bonding the granular materials to each other more firmly, a high-strength civil engineering building material can be easily and conveniently manufactured, and is more versatile and more useful.
【００５２】また、請求項３に係る発明の土木建築材素
材によれば、水を加えるだけで、粒状体の表面の皮膜に
もポゾラン反応を生じさせ、粒状体どうしをより強固に
付着結合させて土木建築材を作製できるから、容易にか
つ便利に強度の高い土木建築材を作製でき、汎用性が高
くて一層有用である。According to the third aspect of the present invention, a pozzolanic reaction is also generated in the film on the surface of the granular material by merely adding water, and the granular material is more firmly adhered and bonded. Therefore, a high-strength civil engineering building material can be easily and conveniently manufactured, and the versatility is high and more useful.
【００５３】そして、請求項４に係る発明の土木建築材
素材の製造方法によれば、焼却灰、ヘドロ、石粉、再生
粉のうちの少なくとも一種と、水と、セメントとによっ
て、内部または／および表面に未水和のセメントを含
み、水を加えることによりポゾラン反応を生じさせるこ
とのできる粒状体を作製するから、産業廃棄物である焼
却灰、ヘドロ、石粉を用いて、水を加えるだけで土木建
築材を作製できる土木建築材素材を得ることができ、極
めて有用である。According to the method for producing a civil engineering and building material of the invention according to claim 4, at least one of incineration ash, sludge, stone powder, and regenerated powder, water and cement are used to form the interior or / and / or the interior. Since the granules that contain unhydrated cement on the surface and can generate a pozzolanic reaction by adding water are produced, simply add water using incineration ash, sludge, or stone powder that is industrial waste. A civil engineering building material that can be used for producing civil engineering building materials can be obtained, which is extremely useful.
【００５４】また、請求項５に係る発明の土木建築材素
材の製造方法によれば、石粉、再生粉のうちの少なくと
も一種または／およびヘドロを含んだ泥水とセメントと
によって、内部または／および表面に未水和のセメント
を含み、水を加えることによりポゾラン反応を生じさせ
ることのできる粒状体を作製するから、従来、適切な処
理に困っていたヘドロを含んだ泥水や、コンクリート用
骨材や軽量骨材の製造時における大きさを均一化するた
めの研磨洗浄時とか採石場での採石物洗浄時に発生する
石粉とかコンクリート構造物解体時に回収した砂とセメ
ントとの混合物である再生粉を含んだ泥水を用いて、水
を加えるだけで土木建築材を作製できる土木建築材素材
を得ることができ、極めて有用である。According to the method for producing a civil engineering building material according to the fifth aspect of the present invention, at least one of stone powder and regenerated powder or / and muddy water containing sludge and cement are used to form the interior and / or surface. To produce granules capable of inducing a pozzolanic reaction by adding water, so that muddy water containing sludge, aggregate for concrete, Includes reclaimed powder, a mixture of sand and cement recovered during grinding and washing of quarry at a quarry, or sand and cement collected during demolition of concrete structures to equalize the size of lightweight aggregates during manufacture. By using muddy water, it is possible to obtain a civil engineering building material that can be used to produce a civil engineering building material simply by adding water, which is extremely useful.
【００５５】また、請求項６に係る発明の土木建築材素
材の製造方法によれば、内部または／および表面に未水
和のセメントとポゾラン系物質とを含み、水を加えるこ
とによりポゾラン反応を生じさせることのできる粒状体
を作製できるから、水を加えるだけでより強度の高い土
木建築材を作製できる土木建築材素材を得ることがで
き、汎用性を向上できて一層有用である。Further, according to the method for producing a civil engineering building material according to the sixth aspect of the present invention, an unhydrated cement and a pozzolan-based material are contained inside or / and on the surface, and the pozzolan reaction is performed by adding water. Since a granular material that can be produced can be produced, a civil engineering building material that can produce a civil engineering building material having higher strength can be obtained only by adding water, and the versatility can be improved, which is more useful.
【００５６】また、請求項７に係る発明の土木建築材素
材の製造方法によれば、水を加えることにより、粒状体
の表面に被覆されたセメント層またはポゾラン系物質の
皮膜においてもポゾラン反応を生じさせることができる
から、粒状体どうしの結合強度を高めることができ、水
を加えるだけでより強度の高い土木建築材を作製できる
土木建築材素材を得ることができ、汎用性を向上できて
一層有用である。Further, according to the method for manufacturing a civil engineering building material of the invention according to claim 7, by adding water, the pozzolanic reaction can be prevented even in the cement layer or the pozzolan-based material film coated on the surface of the granular material. It is possible to increase the bonding strength between the granular bodies, and to obtain a civil engineering building material that can produce a high strength civil engineering building material only by adding water, and improve versatility. More useful.
【図１】本発明に係る本発明の土木建築材素材の製造方
法に係る実施例を示す全体概略構成図である。FIG. 1 is an overall schematic configuration diagram showing an embodiment according to a method for producing a civil engineering building material of the present invention according to the present invention.
【図２】フィルタープレス型脱水機の一部省略斜視図で
ある。FIG. 2 is a partially omitted perspective view of a filter press type dehydrator.
【図３】フィルタープレス型脱水機の一部省略縦断面図
である。FIG. 3 is a partially omitted longitudinal sectional view of a filter press type dehydrator.
【図４】フィルタープレス型脱水機の一部省略側面図で
ある。FIG. 4 is a partially omitted side view of the filter press type dehydrator.
【図５】フィルタープレス型脱水機の一部省略縦断面図
である。FIG. 5 is a partially omitted vertical sectional view of a filter press type dehydrator.
【図６】（ａ）は土木建築材の作製の説明に供する断面
図、（ｂ）は土木建築材の断面図である。6A is a cross-sectional view for explaining the production of civil engineering building materials, and FIG. 6B is a cross-sectional view of the civil engineering building materials.
【図７】（ａ）は実施例の粒状体の結合状態を示す断面
図、（ｂ）は別実施例の粒状体の結合状態を示す断面図
である。FIG. 7A is a cross-sectional view showing a combined state of the granular bodies of the embodiment, and FIG. 7B is a sectional view showing a combined state of the granular bodies of another embodiment.
Ａ…粒状体 Ｃ…皮膜 A: Granular body C: Film
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１２年１１月２８日（２０００．１１．
２８）[Submission date] November 28, 2000 (200.11.
28)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 土木建築材素材およびその製造方法[Title of the Invention] Civil engineering building material and its manufacturing method
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、焼却灰やヘドロ
や、コンクリート用骨材や軽量骨材の製造時における大
きさを均一化するための研磨洗浄時とか採石場での採石
物洗浄時に発生する石粉とか、コンクリート構造物の解
体時に回収した砂とセメントとの混合物である再生粉な
どを、軽量コンクリートブロック、路床材、路盤材、歩
道用の敷石材などの土木建築材の素材として用いること
ができるようにするための土木建築材素材および土木建
築材素材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of incinerated ash, sludge, concrete aggregates and lightweight aggregates during polishing and washing to make the size uniform, and during quarry washing at quarries. Stone powder or recycled powder, which is a mixture of sand and cement collected during the demolition of concrete structures, is used as a material for civil engineering construction materials such as lightweight concrete blocks, subgrade materials, subgrade materials, and paving stones for sidewalks TECHNICAL FIELD The present invention relates to a civil engineering building material and a method for manufacturing the civil engineering building material so that the material can be used.
【０００２】[0002]
【従来の技術】従来、焼却灰やヘドロや石粉や再生粉な
どを処理して再生骨材を作製し、それらの再生骨材に固
化材としてセメントを加え、軽量コンクリートブロッ
ク、路床材、路盤材、歩道用の敷石材の土木建築材など
が作製されており、この種のものとして、特開平８−２
０８２９１号公報に開示されるものがあった。2. Description of the Related Art Conventionally, incinerated ash, sludge, stone powder, regenerated powder, and the like are processed to produce regenerated aggregate, and cement is added to the regenerated aggregate as a solidifying material. Materials, civil construction materials such as paving stones for sidewalks, and the like are produced.
There was one disclosed in Japanese Patent Application Laid-Open No. 08291.
【０００３】上記公報例によれば、ヘドロまたは焼却灰
に、砕石、塩化カルシウムイオン交換水、硫酸アンモニ
ウム、酸化カルシウム、セメントからなる添加材料をミ
キサーによって混合攪拌し、大きさ形状が一定しない、
砂状ないし外径が10mm程度の採石状の骨材素材を作製す
る。次いで、それらの骨材素材に砕石粉または砂をミキ
サーによって混合攪拌し、骨材素材の表面に砕石粉また
は砂を付着させ、製品としての骨材を得ている。[0003] According to the above publication, an additive material consisting of crushed stone, calcium chloride ion-exchanged water, ammonium sulfate, calcium oxide, and cement is mixed and stirred into sludge or incinerated ash, and the size and shape are not constant.
A sandy or quarry-shaped aggregate material with an outer diameter of about 10 mm is produced. Subsequently, the crushed stone powder or sand is mixed and stirred with the aggregate material by a mixer, and the crushed stone powder or sand is adhered to the surface of the aggregate material to obtain an aggregate as a product.
【０００４】上述のようにして得られた骨材に、固化材
としてセメントを混和し、前述した土木建築材などのコ
ンクリート製品を作製している。[0004] The aggregate obtained as described above is mixed with cement as a solidifying material to produce concrete products such as civil engineering and building materials described above.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来例
の場合、焼却灰やヘドロや石粉や再生粉などを処理し
て、従来の骨材と同様の骨材を作製するものであり、土
木建築材などのコンクリート製品の作製に際しては、新
たにセメントなどの固化材が必要であり、従来の骨材の
代替品に過ぎないものであった。However, in the case of the conventional example, incineration ash, sludge, stone powder, regenerated powder, and the like are processed to produce an aggregate similar to the conventional aggregate. For the production of concrete products such as the above, a new solidifying material such as cement is required, which is only a substitute for the conventional aggregate.
【０００６】本発明は、このような事情に鑑みてなされ
たものであって、焼却灰、ヘドロ、石粉、再生粉を利用
するものでありながら、水を加えるだけで土木建築材を
作製できる土木建築材素材ならびにその製造方法を提供
することを目的とする。[0006] The present invention has been made in view of such circumstances, and uses civil incineration ash, sludge, stone powder, and regenerated powder, and is capable of producing a civil engineering building material only by adding water. It is an object of the present invention to provide a building material and a method for manufacturing the same.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る発明の土
木建築材素材は、上述のような目的を達成するために、
焼却灰、ヘドロ、石粉、再生粉のうちの少なくとも一種
５０〜９０重量％と、セメント１０〜５０重量％とを含
有し、内部または／および表面に未水和のセメントを含
んだ粒径２．５〜３０mmの粒状体に造粒して構成する。According to the first aspect of the present invention, there is provided a material for civil engineering and construction material, in order to achieve the above object.
1. Particle size containing 50 to 90% by weight of at least one of incineration ash, sludge, stone powder, and regenerated powder and 10 to 50% by weight of cement and containing unhydrated cement inside or / and on the surface. It is formed by granulating into granules of 5 to 30 mm.
【０００８】ここで、再生粉とは、コンクリート構造物
の解体時に回収した砂とセメントとの混合物のことをい
う。焼却灰、ヘドロ、石粉、再生粉の含有量は５０〜９
０重量％である。５０重量％未満では、廃棄物の利用量
が少なく、実用的でなく、一方、９０重量％を越えると
必要強度を得にくいからである。セメントの含有量は１
０〜５０重量％である。１０重量％未満では、未水和の
セメント量が少なくなって必要強度を得にくく、一方、
５０重量％を越えると、廃棄物の利用量が少なく高価と
なり、実用的でないからである。Here, the recycled powder refers to a mixture of sand and cement collected at the time of dismantling a concrete structure. The content of incineration ash, sludge, stone powder and regenerated powder is 50-9
0% by weight. If the amount is less than 50% by weight, the amount of waste is small and not practical, while if it exceeds 90% by weight, it is difficult to obtain the required strength. The cement content is 1
0 to 50% by weight. If the content is less than 10% by weight, the amount of unhydrated cement is reduced, and it is difficult to obtain the required strength.
If it exceeds 50% by weight, the amount of waste is small and expensive, which is not practical.
【０００９】造粒処理としては、回転式の造粒機で球状
の粒状体を作製するものでも、押し出し式の造粒機で紐
状体を押し出して所定長さごとに切断することによって
円柱状の粒状体を作製するものでも良い。円柱状の粒状
体の場合には、その切断長さが円径の０．５〜２．０倍
になるように作製する。[0009] As the granulation process, even when a spherical granule is produced by a rotary granulator, a string is extruded by an extruder and cut into a columnar shape by cutting at a predetermined length. May be used to produce the granular material. In the case of a columnar granular material, it is manufactured such that the cut length is 0.5 to 2.0 times the circular diameter.
【００１０】粒状体の粒径は２．５〜３０mmである。上
述円柱状の粒状体の場合の粒径とは、円径および切断長
さのいずれをも指称し、円径および切断長さのいずれも
が２．５〜３０mmになるようにする。２．５mm未満で
は、粒状体間に水が浸透しにくくて粒状体どうしの結合
力が弱くなり、土木建築材としての必要強度を得にくく
なり、一方、３０mmを越えると、粒状体間の空間面積が
大きくなり、かつ、粒状体どうしの接触面積が減少し、
土木建築材としての必要強度を得にくくなるからであ
る。The particle size of the granular material is 2.5 to 30 mm. The particle size in the case of the above-mentioned columnar granular material refers to both the circular diameter and the cut length, and both the circular diameter and the cut length are set to be 2.5 to 30 mm. If it is less than 2.5 mm, it is difficult for water to penetrate between the granules, and the bonding strength between the granules becomes weak, and it becomes difficult to obtain the necessary strength as a civil engineering building material. On the other hand, if it exceeds 30 mm, the space between the granules The area increases, and the contact area between the granular materials decreases,
This is because it becomes difficult to obtain the necessary strength as a civil engineering building material.
【００１１】また、請求項２に係る発明の土木建築材素
材は、請求項１に係る発明の土木建築材素材における粒
状体の内部または／および表面にポゾラン系物質を含む
ように構成する。ポゾラン系物質としては、フライアッ
シュ、シリカヒュームなどの人工品や火山灰や珪酸白土
などの天然品などが用いられる。The civil engineering building material according to the second aspect of the present invention is configured such that the inside or / and the surface of the granular material in the civil engineering building material according to the first aspect of the present invention contains a pozzolanic substance. As the pozzolan-based material, artificial products such as fly ash and silica fume, and natural products such as volcanic ash and silicate clay are used.
【００１２】また、請求項３に係る発明の土木建築材素
材は、請求項１または請求項２に係る発明の土木建築材
素材における粒状体の表面をセメント層またはポゾラン
系物質の皮膜で被覆して構成する。皮膜の厚みは、０．
５〜２mm程度であれば良い。０．５mm未満では効果が無
く、一方、２mmを越えると被覆そのものがしづらくて製
造が困難になり、また、セメントまたはポゾラン系物質
の量が多くなって材料費が高価になるからである。被覆
処理としては、回転式造粒機が効果的で、造粒された後
にセメントまたはポゾラン系物質を散布しながら回転を
継続し、雪だるまの生成と同様にして処理すれば良い。Further, the civil engineering building material according to the third aspect of the present invention is the civil engineering building material according to the first or second aspect of the present invention, wherein the surface of the granular material is covered with a cement layer or a film of a pozzolanic substance. It is composed. The thickness of the film is 0.
It may be about 5 to 2 mm. If the thickness is less than 0.5 mm, there is no effect. On the other hand, if the thickness exceeds 2 mm, the coating itself is difficult and the production becomes difficult. In addition, the amount of cement or pozzolanic substance increases and the material cost increases. As the coating treatment, a rotary granulator is effective. After the granulation, the rotation may be continued while the cement or the pozzolanic substance is being sprayed, and the treatment may be performed in the same manner as the production of a snowman.
【００１３】そして、請求項４に係る発明の土木建築材
素材の製造方法は、再生粉、石粉のうちの少なくとも一
種または／およびヘドロを含んだ泥水を、含水比１５〜
５０重量％まで濃縮処理し、その濃縮処理物５０〜９０
重量％にセメント１０〜５０重量％を混合して攪拌処理
し、その混合物を粒径２．５〜３０mmに造粒処理し、内
部または／および表面に未水和のセメントを含む粒状体
を作製することを特徴としている。攪拌処理は、汎用の
ミキサーを用いれば良い。濃縮処理としては、フィルタ
ープレス型脱水機や遠心脱水機やベルトプレス型脱水機
など各種のものが適用できる。According to a fourth aspect of the present invention, there is provided a method for manufacturing a civil engineering and building material, wherein at least one of recycled powder and stone powder or / and muddy water containing sludge is mixed with a water content of 15 to 15%.
Concentrated to 50% by weight, and the concentrated product 50-90%
10 to 50% by weight of cement and 10% by weight of the mixture are stirred, and the mixture is granulated to a particle size of 2.5 to 30 mm to produce a granular material containing unhydrated cement inside or / and on the surface. It is characterized by doing. For the stirring process, a general-purpose mixer may be used. As the concentration treatment, various types such as a filter press type dehydrator, a centrifugal dehydrator, and a belt press type dehydrator can be applied.
【００１４】また、請求項５に係る発明の土木建築材素
材の製造方法は、請求項４に係る発明の土木建築材素材
の製造方法におけ攪拌処理に先立って、ポゾラン系物質
１０〜３０重量部を混合する。１０重量部未満では増強
効果が低く、一方、３０重量部を越えると、高価になる
からである。The method for producing a civil engineering building material according to the fifth aspect of the present invention is the method for producing a civil engineering building material according to the fourth aspect, wherein the pozzolanic material is added in an amount of 10 to 30 wt. Mix parts. If the amount is less than 10 parts by weight, the enhancing effect is low, while if it exceeds 30 parts by weight, the cost becomes high.
【００１５】また、請求項６に係る発明の土木建築材素
材の製造方法は、請求項４または請求項５に係る発明の
土木建築材素材の製造方法における粒状体の表面をセメ
ント層またはポゾラン系物質の皮膜で被覆する。In the method for producing a civil engineering building material according to the invention according to claim 6, the surface of the granular material in the method for producing a civil engineering building material according to claim 4 or 5 is modified such that a cement layer or a pozzolan-based material is used. Cover with a film of material.
【００１６】[0016]
【作用】請求項１に係る発明の土木建築材素材の構成に
よれば、内部または／および表面に未水和のセメントを
含んだ粒状体であるために、水を加えることによりポゾ
ラン反応を生じさせ、粒状体どうしを強固に付着結合し
て、土木建築材を作製できる。According to the construction material for civil engineering and construction materials of the first aspect of the present invention, since it is a granular material containing unhydrated cement inside or / and on the surface, a pozzolanic reaction is caused by adding water. Then, the granular materials can be firmly adhered and bonded to each other to produce a civil engineering building material.
【００１７】また、請求項２に係る発明の土木建築材素
材の構成によれば、内部または／および表面に、未水和
のセメントに加えてポゾラン系物質を含んだ粒状体であ
るために、水を加えることによりポゾラン反応を生じさ
せ、粒状体どうしを強固に付着結合して、土木建築材を
作製できる。According to the construction of the civil engineering building material of the second aspect of the present invention, since the internal or / and / or surface is a granular material containing a pozzolanic material in addition to unhydrated cement, By adding water, a pozzolanic reaction is caused, and the granular materials are firmly adhered and bonded to each other, whereby a civil engineering building material can be produced.
【００１８】また、請求項３に係る発明の土木建築材素
材の構成によれば、水を加えることにより、粒状体の表
面の皮膜にもポゾラン反応を生じさせ、粒状体どうしを
より強固に付着結合し、土木建築材を作製できる。According to the construction of the civil engineering building material according to the third aspect of the present invention, by adding water, a pozzolanic reaction is caused on the film on the surface of the granular material, and the granular material is more firmly adhered to each other. Combine to produce civil engineering and building materials.
【００１９】そして、請求項４に係る発明の土木建築材
素材の製造方法の構成によれば、再生粉、石粉のうちの
少なくとも一種または／およびヘドロを含んだ泥水を、
所定の含水比まで濃縮処理してから適量のセメントを混
合して攪拌処理した後に造粒処理し、内部または／およ
び表面に未水和のセメントを含み、水を加えることによ
りポゾラン反応を生じさせることのできる粒状体を作製
できる。According to the construction of the method for producing a civil engineering building material of the invention according to claim 4, muddy water containing at least one of recycled powder and stone powder and / or sludge is produced.
After concentrating to a predetermined water content, mixing an appropriate amount of cement, stirring and then granulating, containing unhydrated cement inside or / and on the surface, and adding water to cause a pozzolanic reaction. A granular material that can be produced.
【００２０】また、請求項５に係る発明の土木建築材素
材の製造方法の構成によれば、攪拌処理に先立ってポゾ
ラン系物質を混合し、内部または／および表面に未水和
のセメントとポゾラン系物質とを含み、水を加えること
によりポゾラン反応を生じさせることのできる粒状体を
作製できる。Further, according to the construction of the method for producing a civil engineering building material according to the fifth aspect of the present invention, a pozzolan-based substance is mixed prior to the stirring treatment, and unhydrated cement and pozzolan are internally or / and / or surface-mixed. A particulate material containing a base substance and capable of causing a pozzolanic reaction by adding water can be produced.
【００２１】また、請求項６に係る発明の土木建築材素
材の製造方法の構成によれば、水を加えることにより、
粒状体の表面に被覆されたセメント層またはポゾラン系
物質の皮膜においてポゾラン反応を生じさせることので
きる粒状体を作製できる。Further, according to the construction of the method for producing a civil engineering and building material of the invention according to claim 6, by adding water,
A granule capable of causing a pozzolanic reaction in a cement layer or a pozzolan-based material film coated on the surface of the granule can be produced.
【００２２】[0022]
【発明の実施の形態】次に、本発明の実施例を図面に基
づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.
【００２３】図１は、本発明の土木建築材素材の製造方
法に係る実施例を示す全体概略構成図であり、コンクリ
ート用骨材や軽量骨材の製造時における大きさを均一化
するための研磨洗浄時とか採石場での採石物洗浄時に発
生する、石粉を含んだ泥水を原水として沈澱槽１に供給
するとともに高分子凝集剤を注入する。FIG. 1 is an overall schematic diagram showing an embodiment of a method for producing a civil engineering building material according to the present invention, and is used for uniformizing the size of concrete aggregate and lightweight aggregate during production. Muddy water containing stone powder, which is generated during polishing washing or quarry washing at a quarry, is supplied as raw water to the precipitation tank 1 and a polymer flocculant is injected.
【００２４】沈澱槽１内で、第１の攪拌装置２により緩
速で回転攪拌し、汚泥を沈降分離させ、上澄み液は清水
タンク３に回収し、沈降分離された汚泥はスラリーポン
プ４により濃縮タンク５に供給する。図面上、濃縮タン
ク５は沈澱槽１と同じような大きさに記載しているが、
例えば、沈澱槽１が直径３０ｍで高さ６ｍであるのに対
して濃縮タンク５が直径５ｍで高さ６ｍといったよう
に、容量的には、沈澱槽１よりも大幅に小さいものであ
る。The sludge is settled and separated in the settling tank 1 by slow rotation with the first stirrer 2, and the sludge is settled and separated in the fresh water tank 3. The settled and separated sludge is concentrated by the slurry pump 4. Supply to tank 5. In the drawing, the concentration tank 5 is described in the same size as the sedimentation tank 1,
For example, the sedimentation tank 1 is 30 m in diameter and 6 m in height, while the concentration tank 5 is 5 m in diameter and 6 m in height.
【００２５】濃縮タンク５内で、第２の攪拌装置６によ
り回転攪拌し、汚泥を濃縮処理する。濃縮処理された汚
泥を高圧スラリーポンプ７によりフィルタープレス型脱
水機８に供給し、含水比３０重量％以下になるようによ
り一層濃縮処理する。The sludge is concentrated in the concentration tank 5 by rotary stirring by the second stirring device 6. The concentrated sludge is supplied to a filter press type dehydrator 8 by a high-pressure slurry pump 7 to further concentrate the sludge so that the water content becomes 30% by weight or less.
【００２６】フィルタープレス型脱水機８には、図２の
一部省略斜視図に示すように、第１のガイドレール９に
沿って、鉛直姿勢を維持した状態で移動可能に濾板１０
が設けられ、その濾板１０の両側に水切りネット１１が
設けられるとともに、両水切りネット１１を覆うように
濾布１２が設けられ、その中心部がフランジ１３を介し
て一体化されている。As shown in a partially omitted perspective view of FIG. 2, the filter press type dehydrator 8 is provided with a filter plate 10 movably along a first guide rail 9 while maintaining a vertical posture.
The draining nets 11 are provided on both sides of the filter plate 10, and a filter cloth 12 is provided so as to cover the draining nets 11, and the central part thereof is integrated via a flange 13.
【００２７】隣合う濾板１０間に位置されるとともに、
第２のガイドレール１４に沿って移動可能に、かつ、傾
斜可能に濾枠１５が設けられ、その濾枠１５のゴムシー
ル枠１６に環状のゴムシール１７が取り付けられてい
る。While being located between the adjacent filter plates 10,
A filter frame 15 is provided movably and tiltably along the second guide rail 14, and an annular rubber seal 17 is attached to a rubber seal frame 16 of the filter frame 15.
【００２８】図１および図３の一部省略縦断面図に示す
ように、濾板１０と濾枠１５の並列方向の一端側に可動
プレート１８が設けられるとともにその可動プレート１
８に油圧シリンダ１９が連結され、他端側に固定プレー
ト２０が設けられるとともにその固定プレート２０に汚
泥供給管２１が接続されている。1 and 3, a movable plate 18 is provided at one end of the filter plate 10 and the filter frame 15 in the parallel direction.
8, a hydraulic cylinder 19 is connected, a fixed plate 20 is provided on the other end side, and a sludge supply pipe 21 is connected to the fixed plate 20.
【００２９】フランジ１３それぞれが中空筒状に形成さ
れていて、図３に示すように、可動プレート１８により
押し込み、濾布１２それぞれにゴムシール１７を圧接し
た状態で、濾布１２とゴムシール１７とで形成される処
理空間Ｓ内に、汚泥供給管２１からフランジ１３を通じ
て濃縮タンク５からの濃縮汚泥を供給するように構成さ
れている。Each of the flanges 13 is formed in a hollow cylindrical shape, and as shown in FIG. 3, the filter cloth 12 and the rubber seal 17 are pressed together by the movable plate 18 and the rubber cloth 17 is pressed against each of the filter cloths 12. The concentrated sludge from the concentration tank 5 is supplied from the sludge supply pipe 21 through the flange 13 into the formed processing space S.
【００３０】処理空間Ｓの下方には、図１および図３に
示すように、濾過した水を受け止めて回収する樋２２が
設けられ、この樋２２が、図４の一部省略側面図に示す
ように、処理空間Ｓの真下の位置と、真下から退避して
汚泥ケーキ（フィルタープレス型脱水機８によって濃縮
処理された後の石粉を含んだ汚泥のことを称する）の落
下の邪魔にならない位置とに移動可能に構成されてい
る。As shown in FIGS. 1 and 3, a gutter 22 for receiving and recovering filtered water is provided below the processing space S. This gutter 22 is shown in a partially omitted side view of FIG. As described above, the position just below the processing space S and the position retreating from just below and not obstructing the falling of the sludge cake (referred to as the sludge containing stone powder after being concentrated by the filter press type dehydrator 8). And it is configured to be movable.
【００３１】図１に示すように、樋２２から清水タンク
３への濾過水の回収経路途中に、濾過時間調整装置２３
が介装されている。この濾過時間調整装置２３には、図
示しないが、樋２２からの濾過水の一部を流入するセン
サー用タンクが設けられるとともにそのセンサー用タン
ク内にフローティングスイッチが設けられ、濾過処理の
終了を検出するようになっている。As shown in FIG. 1, a filtration time adjusting device 23 is provided on the way of collecting filtered water from the gutter 22 to the fresh water tank 3.
Is interposed. Although not shown, the filtration time adjusting device 23 is provided with a sensor tank into which a part of the filtered water flows from the gutter 22, and a floating switch is provided in the sensor tank to detect the end of the filtration process. It is supposed to.
【００３２】すなわち、センサー用タンクの下部に排水
口が設けられ、濾過処理状態では、センサー用タンク内
への濾過水の流入量が排水口からの排水量よりも多くて
オーバーフローし、フローティングスイッチが浮上状態
に維持される。そして、汚泥供給管２１からの濃縮汚泥
の供給が停止されて濾過水の流入量が排水口からの排水
量よりも少なくなるに伴い、濾過水がオーバーフローせ
ず、センサー用タンク内での液面が低下してフローティ
ングスイッチが下降し、これにより濾過処理の終了を検
出するようになっている。That is, a drain port is provided at the lower part of the sensor tank, and in a filtration state, the amount of filtered water flowing into the sensor tank is larger than the amount of drain water from the drain port and overflows, and the floating switch rises. Maintained in state. Then, as the supply of the concentrated sludge from the sludge supply pipe 21 is stopped and the inflow of the filtered water becomes smaller than the drainage from the drain port, the filtered water does not overflow, and the liquid level in the sensor tank is reduced. Then, the floating switch is lowered and lowered, thereby detecting the end of the filtering process.
【００３３】上述のようにして濾過処理の終了を検出す
るに伴い、樋２２が処理空間Ｓの真下から退避するとと
もに、油圧シリンダ１９により可動プレート１８が固定
プレート２０から離れる側に移動するようになってい
る。When the end of the filtration process is detected as described above, the gutter 22 is retracted from immediately below the processing space S, and the movable plate 18 is moved by the hydraulic cylinder 19 away from the fixed plate 20. Has become.
【００３４】図５の一部省略縦断面図に示すように、濾
板１０の上部側と隣り合う一方の濾枠１５の上端、なら
びに、濾板１０の下部側と隣り合う他方の濾枠１５の下
端それぞれがチェーン２４を介して連結され、可動プレ
ート１８が固定プレート２０から離れる側に移動するに
伴って濾枠１５が傾斜し、濾過処理された汚泥ケーキが
濾布１２から剥離されてゴムシール１７内に保持され、
所定角度傾斜するに伴って、保持された汚泥ケーキが自
重によって落下するようになっている。As shown in a partially omitted vertical sectional view of FIG. 5, the upper end of one filter frame 15 adjacent to the upper side of the filter plate 10 and the other filter frame 15 adjacent to the lower side of the filter plate 10. Are connected via a chain 24, and as the movable plate 18 moves away from the fixed plate 20, the filter frame 15 tilts, and the filtered sludge cake is peeled off from the filter cloth 12 and a rubber seal is formed. 17 held within,
The sludge cake that is held falls under its own weight as it inclines at a predetermined angle.
【００３５】上述のようにして濃縮処理された汚泥ケー
キはベルトコンベア（図示せず）などで取り出し、図１
に示すように、回転造粒機２５に供給する。The sludge cake concentrated as described above is taken out by a belt conveyor (not shown) or the like.
As shown in FIG.
【００３６】回転造粒機２５には、汚泥ケーキ８０重量
％に対してセメント２０重量％を投入混合し、回転数60
0rpm以上で攪拌し、混合後に回転数を500rpm程度まで下
げて造粒する。造粒後に回転数を400rpmまで下げ、その
状態で造粒物８０重量％に対してフライアッシュ２０重
量％を散布し、造粒物の表面に付着させ、造粒物を被覆
する。In a rotary granulator 25, 80% by weight of sludge cake and 20% by weight of cement are charged and mixed.
Stir at 0 rpm or more, and after mixing, reduce the number of revolutions to about 500 rpm and granulate. After the granulation, the number of revolutions is reduced to 400 rpm, and in that state, 20% by weight of fly ash is scattered with respect to 80% by weight of the granulated substance, and adhered to the surface of the granulated substance to coat the granulated substance.
【００３７】以上の処理により、土木建築材素材として
の、粒径２０mm程度の内部または／および表面に未水和
のセメントを含む粒状体を製造する。By the above-described treatment, a granular material containing unhydrated cement on the inside and / or the surface, having a particle size of about 20 mm, is produced as a material for civil engineering and building materials.
【００３８】上述濃縮処理としては、石粉を含んだ泥水
を、含水比１５〜５０重量％まで濃縮処理すれば良く、
また、濃縮処理物５０〜９０重量％に対してはセメント
を１０〜５０重量％混合して攪拌処理するものであれば
良い。また、混合物を造粒処理する粒径としては、２．
５〜３０mmにするのが良い。As the above-described concentration treatment, muddy water containing stone powder may be concentrated to a water content of 15 to 50% by weight.
Further, it is sufficient that the cement is mixed with 10 to 50% by weight with respect to 50 to 90% by weight of the concentrated product and then the mixture is stirred. The particle size for granulating the mixture is 2.
It is good to make it 5-30 mm.
【００３９】上記土木建築材素材の製造方法は、ヘド
ロ、または、ヘドロと石粉との混合物とか、ヘドロと再
生粉との混合物、あるいは、ヘドロと石粉と再生粉との
混合物を含んだ泥水にも適用できる。また、前述した攪
拌処理に先立って、フライアッシュ、シリカヒュームな
どの人工品や火山灰や珪酸白土などの天然品などのポゾ
ラン系物質を１０〜３０重量部混合するようにしても良
い。The above-mentioned method for producing a civil engineering building material is applicable to muddy water containing sludge, a mixture of sludge and stone powder, a mixture of sludge and recycled powder, or a mixture of sludge, stone powder and recycled powder. Applicable. Prior to the above-mentioned stirring treatment, 10 to 30 parts by weight of a pozzolanic substance such as an artificial product such as fly ash or silica fume or a natural product such as volcanic ash or silicate clay may be mixed.
【００４０】次に、得られた土木建築材素材としての粒
状体を用いて、軽量コンクリートブロック、路床材、路
盤材、歩道用の敷石材などの土木建築材を作製する一例
について説明する。Next, an example of producing civil engineering building materials such as lightweight concrete blocks, subgrade materials, subgrade materials, and paving stones for sidewalks using the obtained granular material as civil engineering building material will be described.
【００４１】図６の（ａ）の断面図に示すように、作製
しようとする土木建築材に対応する型枠２６内に必要量
の土木建築材素材としての粒状体Ａを充填し、その粒状
体Ａの表面を濡らす程度に水を加え、セメントの水和お
よびポゾラン反応を生じさせて粒状体Ａどうしを結合し
て固化させる。固化した後に、図６の（ｂ）の断面図に
示すように、型枠２６を脱型し、粒状体Ａ間に適度な透
水路が形成された土木建築材Ｂを作製する。As shown in the cross-sectional view of FIG. 6A, a required amount of granular material A as a civil engineering building material is filled in a formwork 26 corresponding to the civil engineering building material to be manufactured, and Water is added to the extent that the surface of the body A is wetted, causing the hydration of the cement and the pozzolanic reaction to bind and solidify the granular bodies A. After solidification, as shown in the cross-sectional view of FIG. 6B, the mold 26 is removed from the mold, and a civil engineering building material B in which an appropriate water passage is formed between the granular materials A is manufactured.
【００４２】得られた土木建築材Ｂでは、図７の（ａ）
の断面図に示すように、粒状体Ａどうしの表面が強固に
付着結合しているものである。In the obtained civil engineering building material B, FIG.
As shown in the cross-sectional view, the surfaces of the granular materials A are firmly adhered and bonded.
【００４３】別の実施例としては、上述のようにして得
られた粒状体を、セメントまたはフライアッシュ、シリ
カヒュームなどの人工品や火山灰や珪酸白土などの天然
品などのポゾラン系物質を収容した処理槽内に投入して
攪拌混合し、図７の（ｂ）の断面図に示すように、粒状
体Ａの表面をセメント層またはポゾラン系物質の皮膜Ｃ
で被覆するようにしても良い。In another embodiment, the granules obtained as described above are filled with artificial substances such as cement or fly ash and silica fume, and pozzolanic substances such as natural products such as volcanic ash and silicate clay. The mixture was charged into the treatment tank and stirred and mixed. As shown in the sectional view of FIG. 7B, the surface of the granular material A was coated with a cement layer or a film C of a pozzolanic material.
It may be covered with.
【００４４】この別の実施例によれば、水を加えたとき
に、粒状体Ａの表面においてポゾラン反応を良好に生じ
させることができ、粒状体Ａどうしの結合強度を高くで
き、高強度の土木建築材を作製することができる利点を
有している。According to this another embodiment, when water is added, the pozzolanic reaction can be satisfactorily generated on the surface of the granular material A, and the bonding strength between the granular materials A can be increased. It has the advantage that civil engineering building materials can be produced.
【００４５】また、土木建築材の作製に際して、型枠内
に充填された粒状体の上方から、例えば、水酸化ナトリ
ウム溶液などのアルカリ水溶液を撒布し、粒状体の表面
を活性化させ、粒状体Ａどうしの結合強度を高くするよ
うにしても良い。In addition, when fabricating civil engineering building materials, an alkaline aqueous solution such as a sodium hydroxide solution is sprayed from above the granular material filled in the formwork to activate the surface of the granular material. The connection strength between A may be increased.
【００４６】[0046]
【発明の効果】以上説明したように、請求項１に係る発
明の土木建築材素材によれば、水を加えるだけで、内部
または／および表面に含まれた未水和のセメントの水和
およびポゾラン反応を生じさせて粒状体どうしを強固に
付着結合させて土木建築材を作製できるから、従来のよ
うに、土木建築材の作製に際して更にセメントと攪拌混
合するといったことが不要で、容易にかつ便利に土木建
築材を作製でき、極めて有用である。As described above, according to the civil engineering building material of the first aspect of the present invention, the hydration of the unhydrated cement contained inside or / and on the surface can be achieved only by adding water. Since a pozzolanic reaction is caused to attach and bond the granular materials firmly to each other to produce a civil engineering building material, it is not necessary to stir and mix the cement with the cement at the time of producing the civil engineering building material as in the past, and it is easy and easy. It is very useful because civil engineering and building materials can be produced conveniently.
【００４７】また、請求項２に係る発明の土木建築材素
材によれば、水を加えるだけで、内部または／および表
面に含まれた未水和のセメントとポゾラン系物質とがポ
ゾラン反応を生じて粒状体どうしをより強固に付着結合
させて土木建築材を作製できるから、容易にかつ便利に
強度の高い土木建築材を作製でき、汎用性が高くて一層
有用である。According to the civil engineering building material of the second aspect of the present invention, the pozzolanic reaction between the unhydrated cement and the pozzolan-based substance contained inside or / and on the surface occurs only by adding water. Since the civil engineering building material can be manufactured by bonding the granular materials to each other more firmly, a high-strength civil engineering building material can be easily and conveniently manufactured, and is more versatile and more useful.
【００４８】また、請求項３に係る発明の土木建築材素
材によれば、水を加えるだけで、粒状体の表面の皮膜に
もポゾラン反応を生じさせ、粒状体どうしをより強固に
付着結合させて土木建築材を作製できるから、容易にか
つ便利に強度の高い土木建築材を作製でき、汎用性が高
くて一層有用である。According to the third aspect of the present invention, the pozzolanic reaction is also generated in the film on the surface of the granular material by simply adding water, and the granular material is more firmly adhered and bonded to each other. Therefore, a high-strength civil engineering building material can be easily and conveniently manufactured, and the versatility is high and more useful.
【００４９】そして、請求項４に係る発明の土木建築材
素材の製造方法によれば、石粉、再生粉のうちの少なく
とも一種または／およびヘドロを含んだ泥水とセメント
とによって、内部または／および表面に未水和のセメン
トを含み、水を加えることによりポゾラン反応を生じさ
せることのできる粒状体を作製するから、従来、適切な
処理に困っていたヘドロを含んだ泥水や、コンクリート
用骨材や軽量骨材の製造時における大きさを均一化する
ための研磨洗浄時とか採石場での採石物洗浄時に発生す
る石粉とかコンクリート構造物解体時に回収した砂とセ
メントとの混合物である再生粉を含んだ泥水を用いて、
水を加えるだけで土木建築材を作製できる土木建築材素
材を得ることができ、極めて有用である。According to the method for producing a civil engineering and building material of the invention according to claim 4, at least one of stone powder and regenerated powder or / and muddy water containing sludge and cement are used to form the interior and / or surface. To produce granules capable of inducing a pozzolanic reaction by adding water, so that muddy water containing sludge, aggregate for concrete, Includes reclaimed powder, a mixture of sand and cement recovered during grinding and washing of quarry at a quarry, or sand and cement collected during demolition of concrete structures to equalize the size of lightweight aggregates during manufacture. Using muddy water,
A civil engineering building material that can be used to produce civil engineering building materials can be obtained only by adding water, which is extremely useful.
【００５０】また、請求項５に係る発明の土木建築材素
材の製造方法によれば、内部または／および表面に未水
和のセメントとポゾラン系物質とを含み、水を加えるこ
とによりポゾラン反応を生じさせることのできる粒状体
を作製できるから、水を加えるだけでより強度の高い土
木建築材を作製できる土木建築材素材を得ることがで
き、汎用性を向上できて一層有用である。Further, according to the method for producing a civil engineering building material according to the fifth aspect of the present invention, an unhydrated cement and a pozzolanic substance are contained inside or / and on the surface, and the pozzolanic reaction is caused by adding water. Since a granular material that can be produced can be produced, a civil engineering building material that can produce a civil engineering building material having higher strength can be obtained only by adding water, and the versatility can be improved, which is more useful.
【００５１】また、請求項６に係る発明の土木建築材素
材の製造方法によれば、水を加えることにより、粒状体
の表面に被覆されたセメント層またはポゾラン系物質の
皮膜においてもポゾラン反応を生じさせることができる
から、粒状体どうしの結合強度を高めることができ、水
を加えるだけでより強度の高い土木建築材を作製できる
土木建築材素材を得ることができ、汎用性を向上できて
一層有用である。According to the method for producing a civil engineering building material of the invention according to claim 6, by adding water, the pozzolanic reaction also occurs in the cement layer or the pozzolan-based material film coated on the surface of the granular material. It is possible to increase the bonding strength between the granular bodies, and to obtain a civil engineering building material that can produce a high strength civil engineering building material only by adding water, and improve versatility. More useful.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係る本発明の土木建築材素材の製造方
法に係る実施例を示す全体概略構成図である。FIG. 1 is an overall schematic configuration diagram showing an embodiment according to a method for producing a civil engineering building material of the present invention according to the present invention.
【図２】フィルタープレス型脱水機の一部省略斜視図で
ある。FIG. 2 is a partially omitted perspective view of a filter press type dehydrator.
【図３】フィルタープレス型脱水機の一部省略縦断面図
である。FIG. 3 is a partially omitted longitudinal sectional view of a filter press type dehydrator.
【図４】フィルタープレス型脱水機の一部省略側面図で
ある。FIG. 4 is a partially omitted side view of the filter press type dehydrator.
【図５】フィルタープレス型脱水機の一部省略縦断面図
である。FIG. 5 is a partially omitted vertical sectional view of a filter press type dehydrator.
【図６】（ａ）は土木建築材の作製の説明に供する断面
図、（ｂ）は土木建築材の断面図である。6A is a cross-sectional view for explaining the production of civil engineering building materials, and FIG. 6B is a cross-sectional view of the civil engineering building materials.
【図７】（ａ）は実施例の粒状体の結合状態を示す断面
図、（ｂ）は別実施例の粒状体の結合状態を示す断面図
である。FIG. 7A is a cross-sectional view showing a combined state of the granular bodies of the embodiment, and FIG. 7B is a sectional view showing a combined state of the granular bodies of another embodiment.
【符号の説明】 Ａ…粒状体 Ｃ…皮膜[Explanation of symbols] A: granular material C: coating
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０４Ｂ 18/30 ＺＡＢ Ｃ０４Ｂ 18/30 ＺＡＢ 28/02 28/02 // Ｃ０４Ｂ 103:60 103:60 (72)発明者 長澤 勇治 大阪市中央区本町四丁目１番13号 株式会 社竹中工務店大阪本店内 Ｆターム(参考） 4D004 AA02 AA16 AA31 AA36 BA02 CA13 CA14 CA15 CB15 CC03 CC13 CC15 DA03 DA10 DA20 4G012 PA25 PA26 PA30 PA35 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C04B 18/30 ZAB C04B 18/30 ZAB 28/02 28/02 // C04B 103: 60 103: 60 (72 Inventor Yuji Nagasawa 4-1-1, Honcho, Chuo-ku, Osaka-shi F-term in Takenaka Corporation Osaka Main Store (Reference) 4D004 AA02 AA16 AA31 AA36 BA02 CA13 CA14 CA15 CB15 CC03 CC13 CC15 DA03 DA10 DA20 4G012 PA25 PA26 PA30 PA35
Claims (7)
少なくとも一種５０〜９０重量％と、セメント１０〜５
０重量％とを含有し、内部または／および表面に未水和
のセメントを含んだ粒径２．５〜３０mmの粒状体に造粒
してあることを特徴とする土木建築材素材。1. An incineration ash, sludge, stone powder, regenerated powder of at least 50 to 90% by weight, and cement of 10 to 5%.
A civil engineering building material material comprising 0% by weight and granulated into granules having a particle diameter of 2.5 to 30 mm containing unhydrated cement inside or / and on the surface.
および表面にポゾラン系物質を含むものである土木建築
材素材。2. The inside of the granular material according to claim 1, and / or
And civil engineering and building materials whose surfaces contain pozzolanic substances.
の表面をセメント層またはポゾラン系物質の皮膜で被覆
してある土木建築材素材。3. A civil engineering building material, wherein the surface of the granular material according to claim 1 or 2 is coated with a cement layer or a film of a pozzolanic substance.
少なくとも一種５０〜７５重量％と、水１５〜５０重量
％と、セメント１０〜５０重量％とを混合して攪拌処理
し、その混合物を粒径２．５〜３０mmに造粒処理し、内
部または／および表面に未水和のセメントを含む粒状体
を作製することを特徴とする土木建築材素材の製造方
法。4. A mixture of at least one of incinerated ash, sludge, stone powder and regenerated powder in an amount of 50 to 75% by weight, water in an amount of 15 to 50% by weight, and cement in an amount of 10 to 50% by weight. A method for producing a civil engineering building material, comprising: granulating a mixture to a particle size of 2.5 to 30 mm to produce a granular material containing unhydrated cement inside or / and on the surface.
たは／およびヘドロと含んだ泥水を、含水比１５〜５０
重量％まで濃縮処理し、その濃縮処理物５０〜９０重量
％にセメント１０〜５０重量％を混合して攪拌処理し、
その混合物を粒径２．５〜３０mmに造粒処理し、内部ま
たは／および表面に未水和のセメントを含む粒状体を作
製することを特徴とする土木建築材素材の製造方法。5. Mud water containing at least one of regenerated powder and stone powder and / or sludge, having a water content of 15 to 50.
The mixture is concentrated to 50% by weight, and 50 to 90% by weight of the concentrate is mixed with 10 to 50% by weight of cement and stirred.
A method for producing a civil engineering building material, comprising: granulating the mixture to a particle size of 2.5 to 30 mm to produce a granular material containing unhydrated cement inside or / and on the surface.
理に先立って、ポゾラン系物質１０〜３０重量部を混合
したものである土木建築材素材の製造方法。6. A method for producing a civil engineering and building material, comprising mixing 10 to 30 parts by weight of a pozzolanic substance prior to the stirring treatment according to claim 4 or 5.
かに記載の粒状体の表面をセメント層またはポゾラン系
物質の皮膜で被覆する土木建築材素材の製造方法。7. A method for producing a civil engineering and building material, wherein the surface of the granular material according to claim 3, 4 or 5 is coated with a cement layer or a film of a pozzolan-based material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000094103A JP2001278647A (en) | 2000-03-30 | 2000-03-30 | Raw material for civil engineering and construction and method of producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000094103A JP2001278647A (en) | 2000-03-30 | 2000-03-30 | Raw material for civil engineering and construction and method of producing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001278647A true JP2001278647A (en) | 2001-10-10 |
Family
ID=18609194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000094103A Pending JP2001278647A (en) | 2000-03-30 | 2000-03-30 | Raw material for civil engineering and construction and method of producing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001278647A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1029718C2 (en) * | 2005-08-11 | 2007-02-13 | Hendrik Loggers | Producing masonry units comprises granulating a mixture of ash, cement and water, coating granules with drier mix and pressing coated granules in mold |
| WO2009033943A1 (en) * | 2007-09-10 | 2009-03-19 | Dario Toncelli | Process and plant for treating sludges resulting from the machining of articles of agglomerated stone material |
| ITBG20090053A1 (en) * | 2009-10-13 | 2011-04-14 | Fil Tec S R L | SYSTEM AND METHOD FOR FILTERING THE WASTE WATER DERIVING FROM THE CUTTING OF BLOCKS AND POLISHING OF MARBLES, GRANITES AND SIMILARS. |
| ITBA20110056A1 (en) * | 2011-10-13 | 2013-04-14 | Antonio Ninivaggi | PROCEDURE FOR THE TRANSFORMATION OF SLUDGES BY SAGAGUE PROCESSING, BASIC COMPONENT FOR PASTA PRODUCTION OF: STUCCHI, ADHESIVES, WATERPROOFINGS. |
| CN113336491A (en) * | 2021-07-07 | 2021-09-03 | 上海市建筑科学研究院有限公司 | Concrete doped with ditch-dredging sludge and used for maritime work bank protection engineering twisted Chinese character 'Wang' block and preparation method thereof |
| CN114591013A (en) * | 2022-03-09 | 2022-06-07 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
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|---|---|---|---|---|
| JPH04193749A (en) * | 1990-11-26 | 1992-07-13 | Mitsubishi Materials Corp | Production of crushed stone sludge granulated material |
| JPH07237949A (en) * | 1994-02-25 | 1995-09-12 | Chichibu Onoda Cement Corp | Method for making aggregate by modification of ground stone sludge |
| JPH105722A (en) * | 1996-06-19 | 1998-01-13 | Komaki Kogyo Kk | Production of granule of stone dust |
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2000
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04193749A (en) * | 1990-11-26 | 1992-07-13 | Mitsubishi Materials Corp | Production of crushed stone sludge granulated material |
| JPH07237949A (en) * | 1994-02-25 | 1995-09-12 | Chichibu Onoda Cement Corp | Method for making aggregate by modification of ground stone sludge |
| JPH105722A (en) * | 1996-06-19 | 1998-01-13 | Komaki Kogyo Kk | Production of granule of stone dust |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1029718C2 (en) * | 2005-08-11 | 2007-02-13 | Hendrik Loggers | Producing masonry units comprises granulating a mixture of ash, cement and water, coating granules with drier mix and pressing coated granules in mold |
| WO2009033943A1 (en) * | 2007-09-10 | 2009-03-19 | Dario Toncelli | Process and plant for treating sludges resulting from the machining of articles of agglomerated stone material |
| ITBG20090053A1 (en) * | 2009-10-13 | 2011-04-14 | Fil Tec S R L | SYSTEM AND METHOD FOR FILTERING THE WASTE WATER DERIVING FROM THE CUTTING OF BLOCKS AND POLISHING OF MARBLES, GRANITES AND SIMILARS. |
| ITBA20110056A1 (en) * | 2011-10-13 | 2013-04-14 | Antonio Ninivaggi | PROCEDURE FOR THE TRANSFORMATION OF SLUDGES BY SAGAGUE PROCESSING, BASIC COMPONENT FOR PASTA PRODUCTION OF: STUCCHI, ADHESIVES, WATERPROOFINGS. |
| CN113336491A (en) * | 2021-07-07 | 2021-09-03 | 上海市建筑科学研究院有限公司 | Concrete doped with ditch-dredging sludge and used for maritime work bank protection engineering twisted Chinese character 'Wang' block and preparation method thereof |
| CN114591013A (en) * | 2022-03-09 | 2022-06-07 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
| CN114591013B (en) * | 2022-03-09 | 2022-09-16 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
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