JPS61151052A - Manufacture of coal ash sand - Google Patents
Manufacture of coal ash sandInfo
- Publication number
- JPS61151052A JPS61151052A JP27072684A JP27072684A JPS61151052A JP S61151052 A JPS61151052 A JP S61151052A JP 27072684 A JP27072684 A JP 27072684A JP 27072684 A JP27072684 A JP 27072684A JP S61151052 A JPS61151052 A JP S61151052A
- Authority
- JP
- Japan
- Prior art keywords
- coal ash
- sand
- weight
- parts
- produced
- 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.)
- Granted
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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば建築材料の原料等に使用して好適す
る石炭灰砂の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing coal ash sand suitable for use as a raw material for building materials, for example.
周知のように、例えば建築材の原料等として。 As is well known, for example, as a raw material for building materials.
使用される砂を人工的に製造するために、従来よシ次の
ような各方法が用いられている。まず、第１は、水また
は増粘材を加えた石炭灰を、パン型造粒機を用いてころ
がし造粒するか亀しくけブリケット型造粒機を用いて加
圧造粒し、その後焼結して製造するようにした本のであ
る。Conventionally, the following methods have been used to artificially produce the sand used. First, coal ash to which water or a thickener has been added is granulated by rolling using a pan-type granulator or pressure-granulated using a Kamishike briquette-type granulator, and then sintered. This is a book that was produced by combining the two.
また、第２は、水とセメント、石膏１石灰、ベントナイ
ト等との結合材を混合した石炭灰を、上記ノン型造粒機
またはブリケット型造粒機を用いて造粒するようにした
ものである。The second method is to granulate coal ash mixed with water and a binder of cement, gypsum, lime, bentonite, etc. using the non-type granulator or briquette type granulator described above. be.
しかしながら、上記のような各方法には、次のような問
題がある。まず、ｆｓｌの方法では、ころがし造粒また
は加圧造粒した生成物を、１１００℃〜１３００℃で数
時間焼結する必要があるので、焼結用の設備やエネルギ
ー源が必要となるものである。また、上記第１及び第２
の方法に共通する問題点として、パン型造粒機及びブリ
ケット型造粒機は、共に粒径が５ｍｍ以上２５程程のい
わゆる砂利のような粗骨材を製造するのに適しておシ、
粒径が５ｍ以下０．１５瓢程度の砂のような細骨材を製
造することはできないものである。However, each of the above methods has the following problems. First, in the FSL method, it is necessary to sinter the rolling granulation or pressure granulation product at 1100°C to 1300°C for several hours, so sintering equipment and energy sources are required. be. In addition, the first and second
A common problem with these methods is that both pan-type granulators and briquette-type granulators are not suitable for producing coarse aggregates such as gravel with a particle size of 5 mm or more and about 25 mm.
It is not possible to produce fine aggregate such as sand with a grain size of 5 m or less and about 0.15 gourd.
このため、従来では細骨材を必要とする場合には、上記
各方法によって製造された粗骨材を粉砕して生成するよ
うにしているが、粉砕作業が必要であるとともに、粉砕
砂は角はっているためコンクリート等に使用する場合、
セメントを多量に必要とし、施工性が悪化する等の問題
が生じる本のである。For this reason, conventionally, when fine aggregate is required, it is produced by crushing the coarse aggregate produced by each of the above methods, but in addition to requiring crushing work, crushed sand is When using it for concrete, etc., because it is hollow,
This method requires a large amount of cement, which causes problems such as poor workability.
この発明は上記事情を考慮してなされたもので、施工性
及び経済性に優れ特に建築材の原料に使用して好適する
細骨状の石炭灰砂を、容易Ｋかつ短時間で製造し得る極
めて良好な石炭灰砂の製造方法を提供することを目的と
する。This invention was made in consideration of the above circumstances, and it is possible to easily and quickly produce fine-boned coal ash sand, which is excellent in workability and economy, and is particularly suitable for use as a raw material for building materials. The purpose of the present invention is to provide an extremely good method for producing coal ash sand.
〔問題点を解決するための手段・作用〕すなわち、この
発明に係る石炭灰砂の製造方法は、石炭灰１００重量部
に対して、セメントを１０重量部以上１００重量部以下
と適量の水を加え、高速混合機にて造粒することＫよシ
、粒径が０．１５ｍ〜５−程度の粒を生成し、これを養
生硬化して石炭灰砂を製造するようにしたものである。[Means and effects for solving the problem] That is, the method for producing coal ash sand according to the present invention comprises adding 10 parts by weight or more and 100 parts by weight or less of cement and an appropriate amount of water to 100 parts by weight of coal ash. In addition, by granulating with a high-speed mixer, particles having a particle size of about 0.15 m to 5 mm are produced, which are cured and hardened to produce coal ash sand.
ここで、上記高速混合機としては、高粘度のものを混ぜ
合わせる汎用のミクサーが用いられるが、内容物の粉体
粒度、水分量、撹拌羽根の回転数及び容器自体の回転数
等を、所定の値に調整すれば、数１０秒の短時間で石炭
灰砂の造粒を行なうことができるものである。また、上
記水分量や羽根及び容器の回転数、撹拌時間等を適宜設
定することにより、目的に応じた粒度分布の石炭灰砂を
生成することができるものである。Here, as the above-mentioned high-speed mixer, a general-purpose mixer that mixes high-viscosity materials is used, but the powder particle size of the contents, moisture content, rotation speed of the stirring blade, rotation speed of the container itself, etc. If the value is adjusted to , coal ash sand can be granulated in a short time of several tens of seconds. Furthermore, by appropriately setting the moisture content, the rotational speed of the blades and container, the stirring time, etc., it is possible to produce coal ash sand with a particle size distribution suitable for the purpose.
また、上記石炭灰に加える水に、増粘剤として少量のポ
リビニールアルコール、メチルセルローズやふのシ等の
接着剤を加えたシ、さらにコンクリート用の急結剤、防
水剤及び発泡剤等を加えるようにして本よい亀のである
。In addition, to the water added to the coal ash, a small amount of polyvinyl alcohol as a thickener, adhesives such as methylcellulose and Funoshi, and quick setting agents for concrete, waterproofing agents, foaming agents, etc. are added. Add to that a good turtle.
そして、上記のようにして製造された石炭灰砂は、軽量
で断熱性に優れ、従来の焼結による粗骨材の粉砕砂に比
して流動性及び施工性がよく、例えば非・構造コンクリ
ートやモルタル等の建築材の原料に使用して好適するも
のである。The coal ash sand produced in the above manner is lightweight and has excellent heat insulation properties, and has better fluidity and workability than conventional sintered coarse aggregate crushed sand, for example in non-structural concrete. It is suitable for use as a raw material for building materials such as silica and mortar.
また、従来の焼結骨材に比して大幅に安価に製造するこ
とができるとともに、大量に流出される石炭灰の有効利
用を図ることになシ、経済的に有利となるものである。In addition, it can be produced at a significantly lower cost than conventional sintered aggregates, and is economically advantageous as it allows for effective use of coal ash, which is released in large quantities.
さらに、吸水性が高いので吸放湿能力が大きく、使用目
的によっては多大な効果を奏することができる。Furthermore, since it has high water absorption, it has a large moisture absorption and desorption ability, and can have great effects depending on the purpose of use.
以下、この発明の一実施例について説明する。 An embodiment of the present invention will be described below.
まず、石炭灰１００重量部に対して、セメントを１０重
量部加えた場合と、セメントを２０重量部加えた場合と
における粒径分布を次表に示す。この場合、メチルセル
ローズの０．１％溶液を２９．５重量部加え、撹拌羽根
の回転数を４５゜ｒ−ｐ、ｍ、、容器の回転数を３６
ｒ、ｐ−ｍ、とじて６０秒間撹拌した条件で測定したも
のである。First, the following table shows particle size distributions when 10 parts by weight of cement and 20 parts by weight of cement were added to 100 parts by weight of coal ash. In this case, 29.5 parts by weight of a 0.1% solution of methyl cellulose was added, the rotation speed of the stirring blade was set to 45° r-p, m, and the rotation speed of the container was set to 36.
Measurements were made under the conditions that r, p-m were combined and stirred for 60 seconds.
また、石炭灰１００重量部に対して、セメント２０重量
部を加え、撹拌羽根の回転数を９０Ｏｒ、ｐ、ｍ、 Ｋ
： ｌ、た場合と、４５０ ｒ、ｐ、ｍ、にした場合と
における粒径分布を次表に示す。ただし、他の条件は、
上記と同様にして測定したものである。Additionally, 20 parts by weight of cement was added to 100 parts by weight of coal ash, and the rotation speed of the stirring blade was set to 90 Or, p, m, K.
The following table shows the particle size distribution in the case of 450 r, p, m and the case of 450 r, p, m. However, other conditions are
It was measured in the same manner as above.
次に、断熱性について説明すると、石炭灰１００重量部
に対してセメント２０重量部を加え撹拌羽根の回転数を
４５ Ｏｒ、ｐｏｍ−とじ、その他の条件を上記と同様
にして製造した石炭灰砂１、 Ｏ０重量部を使用し、３
０重量部のセメントと２０重量部の水とを用いて硬化体
を生成し、その熱伝導率を測定した結果、
０、５４−７ｍ、ｈ、ｄｅｇ
となった。この値は、通常の川砂を用いたモルタルの熱
伝導率である
１、３〜１．４ ｈａｌｌ／ｍ−ｈ−ｄｅｇに比較して
非常に小さく、断熱性に優れていることがわかるもので
ある。Next, to explain the insulation properties, coal ash sand was produced by adding 20 parts by weight of cement to 100 parts by weight of coal ash, setting the rotation speed of the stirring blade to 45 Or, pom-locking, and other conditions similar to those above. 1. Using O0 parts by weight, 3
A hardened body was produced using 0 parts by weight of cement and 20 parts by weight of water, and its thermal conductivity was measured to be 0.54-7 m, h, deg. This value is very small compared to the thermal conductivity of 1.3 to 1.4 hall/m-h-deg, which is the thermal conductivity of mortar using ordinary river sand, and it can be seen that it has excellent heat insulation properties. be.
また、上述した石炭灰１００重量部に対してセメント２
０重量部を加え撹拌羽根の回転数を４５ Ｏｒ、ｐｏｍ
−とじ、その他の条件を上記と同様にして製造した石炭
灰砂は、
絶乾比１ １．１９
表乾比重 １．６３
吸水率 ３．６．８ ％
であり、一般用砂が
絶乾比重 ２．４〜２．５
表乾比重 ２．５〜２．６
吸水率 ２．５〜３．５％
であることから、非常に軽く、また吸放湿能力も大きい
ことがわかるものである。In addition, 2 parts by weight of cement for 100 parts by weight of the above-mentioned coal ash.
Add 0 parts by weight and increase the rotation speed of the stirring blade to 45 Or, pom.
- Coal ash sand produced under the same conditions as above for binding and other conditions has an absolute dry ratio of 1, 1.19, a surface dry specific gravity of 1.63, and a water absorption rate of 3.6.8%, whereas general-purpose sand has an absolute dry specific gravity of 1.19, and a surface dry specific gravity of 3.6.8%. It has a surface dry specific gravity of 2.4 to 2.5 and a water absorption rate of 2.5 to 3.5%, indicating that it is very light and has a high moisture absorption and release capacity.
したがって、以上詳述したようにこの発明によれば、施
工性及び経済性に優れ特に構造用コンクリート以外の建
築材の原料に使用して好適する細骨状の石炭灰砂を、容
易にかつ短時間で製造し得る極めて良好な石炭灰砂の製
造方法を提供することができる。Therefore, as described in detail above, according to the present invention, fine skeletal coal ash sand, which has excellent workability and economy and is particularly suitable for use as a raw material for building materials other than structural concrete, can be easily and quickly produced. It is possible to provide an extremely good method for producing coal ash sand that can be produced in a short time.
Claims (1)
ことを特徴とする石炭灰砂の製造方法。A method for producing coal ash sand, which comprises adding cement and water to coal ash and granulating the mixture at high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27072684A JPS61151052A (en) | 1984-12-24 | 1984-12-24 | Manufacture of coal ash sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27072684A JPS61151052A (en) | 1984-12-24 | 1984-12-24 | Manufacture of coal ash sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61151052A true JPS61151052A (en) | 1986-07-09 |
| JPH0424304B2 JPH0424304B2 (en) | 1992-04-24 |
Family
ID=17490099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27072684A Granted JPS61151052A (en) | 1984-12-24 | 1984-12-24 | Manufacture of coal ash sand |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61151052A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6340001A (en) * | 1986-08-05 | 1988-02-20 | 中国電力株式会社 | Road foundation material using coal ash as raw material and its production |
| JPS63201045A (en) * | 1987-02-13 | 1988-08-19 | 東北電力株式会社 | Manufacture of sand |
| JPH02225704A (en) * | 1989-02-28 | 1990-09-07 | Taisei Doro Kk | Coal ash sand additive fluid-resistance asphalt paving material |
| JPH02251408A (en) * | 1989-03-27 | 1990-10-09 | Nippon Steel Corp | Manufacture of coal ash sand |
| JPH02271943A (en) * | 1989-04-11 | 1990-11-06 | Nippon Jiryoku Senko Kk | Utilizing method for coal ash |
| JPH02293362A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Coal ash sand composition |
| JPH02293366A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Production of cast-in-place-concrete panel |
| JPH02293361A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Coal ash sand composition |
| JPH06504515A (en) * | 1991-01-18 | 1994-05-26 | ベルクヴェルクスフェルバント ゲゼルシャフトミット ベシュレンクテル ハフツング | Method for activating garbage, settled sludge, and special garbage combustion ash |
-
1984
- 1984-12-24 JP JP27072684A patent/JPS61151052A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6340001A (en) * | 1986-08-05 | 1988-02-20 | 中国電力株式会社 | Road foundation material using coal ash as raw material and its production |
| JPS63201045A (en) * | 1987-02-13 | 1988-08-19 | 東北電力株式会社 | Manufacture of sand |
| JPH02225704A (en) * | 1989-02-28 | 1990-09-07 | Taisei Doro Kk | Coal ash sand additive fluid-resistance asphalt paving material |
| JPH02251408A (en) * | 1989-03-27 | 1990-10-09 | Nippon Steel Corp | Manufacture of coal ash sand |
| JPH02271943A (en) * | 1989-04-11 | 1990-11-06 | Nippon Jiryoku Senko Kk | Utilizing method for coal ash |
| JPH02293362A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Coal ash sand composition |
| JPH02293366A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Production of cast-in-place-concrete panel |
| JPH02293361A (en) * | 1989-05-01 | 1990-12-04 | Shimizu Corp | Coal ash sand composition |
| JPH06504515A (en) * | 1991-01-18 | 1994-05-26 | ベルクヴェルクスフェルバント ゲゼルシャフトミット ベシュレンクテル ハフツング | Method for activating garbage, settled sludge, and special garbage combustion ash |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424304B2 (en) | 1992-04-24 |
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