JPH10204432A - Material for stabilizing soil - Google Patents
Material for stabilizing soilInfo
- Publication number
- JPH10204432A JPH10204432A JP1027697A JP1027697A JPH10204432A JP H10204432 A JPH10204432 A JP H10204432A JP 1027697 A JP1027697 A JP 1027697A JP 1027697 A JP1027697 A JP 1027697A JP H10204432 A JPH10204432 A JP H10204432A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- slag
- composition
- cement
- content
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/108—Burned or pyrolised refuse involving a melting step
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は軟弱地盤に対する地
盤改良材に関する。より詳細には、下水汚泥や都市ゴミ
を含む産業廃棄物を溶融したスラグを利用できるように
して経済性を高めると共に資源の再利用を図った地盤改
良材に関する。The present invention relates to a ground improvement material for soft ground. More specifically, the present invention relates to a ground improvement material that improves the economic efficiency and reuses resources by making it possible to use slag in which industrial waste including sewage sludge and municipal waste is melted.
【０００２】[0002]
【従来の技術】従来、軟弱地盤の改良には、その表層部
を良質土によって置換する方法が専ら行われてきた。し
かしながら、このような置換方法は、軟弱地盤の付近に
良質土が存在することが希なため遠方から良質土を運搬
しなければならず、施工費が嵩む問題があり、また地盤
の表層部は改良されるものの地盤深部の改良にはならな
い。そこで、この方法に代えて、軟弱地盤にセメントを
混合して表層部を改善したり、またはセメントミルクを
軟弱地盤深部まで注入して地盤の固結化を促す方法も試
みられたが、軟弱地盤は含水比が高く、しかも有機物を
含む場合が多く、これらが固結効果を妨げるため一般の
セメントでは改良効果が低い。2. Description of the Related Art Heretofore, in order to improve soft ground, a method of replacing the surface layer with high quality soil has been exclusively used. However, such a replacement method has a problem in that good quality soil is rarely present in the vicinity of soft ground, so that the high quality soil must be transported from afar, and construction costs are increased. It will be improved, but not deeper. Therefore, instead of this method, cement was mixed with soft ground to improve the surface layer, or cement milk was injected deep into the soft ground to promote solidification of the ground. Has a high water content and often contains organic substances, which hinder the consolidation effect, so that ordinary cements have a low improvement effect.
【０００３】そこで、この改良として、セメントと高炉
スラグ１００重量部中に１０〜３０重量部の石膏を配合
したセメント−高炉スラグ−石膏系の改良材が知られて
いる（特公昭６１−２６５９８号公報）。また、土壌有
機物含有量２０％以上の高有機質軟弱地盤用の固結材と
して、セメント、高炉スラグ、石膏の全混合物を超微粉
化したものが提案されている。例えば、特開昭６３−１
９９２８３号には水硬性微粉末を用いた固化材が開示さ
れている。また、特開昭６０−１３７４９６号には、セ
メントおよぴ高炉スラグを超微粉化したヘドロ用固化材
が記載されている。しかし、これらの方法で地盤改良材
として用いられているスラグは、銑鉄の製造工程で発生
する高炉スラグであり、供給源が限られる。Therefore, as an improvement, a cement-blast furnace slag-gypsum system improving material in which 10 to 30 parts by weight of gypsum is mixed with 100 parts by weight of cement and blast furnace slag is known (Japanese Patent Publication No. 26598/1986). Gazette). Further, as a solidifying material for a high organic soft ground having a soil organic matter content of 20% or more, a material obtained by ultra-pulverizing a whole mixture of cement, blast furnace slag, and gypsum has been proposed. For example, JP-A-63-1
No. 99283 discloses a solidified material using hydraulic fine powder. JP-A-60-137496 discloses a solidified material for sludge obtained by ultra-pulverizing cement and blast furnace slag. However, slag used as a soil improvement material in these methods is blast furnace slag generated in a pig iron manufacturing process, and its supply source is limited.
【０００４】一方、下水汚泥や都市ゴミ、建設資材等の
各種産業廃棄物が年々増大し、特に大都市周辺において
は、その最終処分場を確保するのが極めて困難な状況に
なっており、そのリサイクルを含めた再資源化が切実に
求められている。下水汚泥や都市ゴミなどの処理方法
は、これらを焼却処理することが一般的であるが、最近
はその焼却灰を更に溶融処理して減容化することが行わ
れており、この溶融スラグについての再利用が検討され
ている。ところが、現状では上記溶融スラグの用途は路
盤材やブロックの骨材やタイルや煉瓦等の原料として利
用され始めているが、その量は微々たるものであり、有
効に活用されているとは云えない。On the other hand, various types of industrial waste such as sewage sludge, municipal waste, and construction materials are increasing year by year, and it is extremely difficult to secure a final disposal site especially in the vicinity of a large city. There is an urgent need for recycling, including recycling. In general, incineration of sewage sludge and municipal waste is incinerated. Recently, however, the incineration ash has been further melted to reduce its volume. Re-use is being considered. However, at present, the use of the above-mentioned molten slag has begun to be used as a raw material for roadbed materials, aggregates for blocks, blocks, tiles, bricks, etc., but the amount is insignificant and it cannot be said that it is being used effectively. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は、従来の上記
問題を解決した地盤改良材を提供するものであって、下
水汚泥や都市ゴミを含む産業廃棄物の溶融スラグについ
て、その成分を調整することにより軟弱地盤の改良に有
効なスラグ系改良材として利用できるようにし、その経
済性を高めると共に資源の有効利用を図ったものであ
る。SUMMARY OF THE INVENTION The present invention provides a ground improvement material which solves the above-mentioned conventional problems, and adjusts the components of molten slag of industrial waste including sewage sludge and municipal waste. By doing so, it can be used as a slag-based improvement material effective for improving soft ground, thereby improving its economic efficiency and effectively using resources.
【０００６】[0006]
【課題を解決するための手段】本発明は、下水汚泥や都
市ゴミを含む産業廃棄物を原料とした特定組成のスラグ
組成物が、高炉スラグと同様に、軟弱地盤の改良に有効
であることを見出し、これを地盤改良材として利用でき
るようにしたものである。According to the present invention, a slag composition having a specific composition obtained from industrial waste including sewage sludge and municipal waste is effective for improving soft ground as well as blast furnace slag. And made it available as a ground improvement material.
【０００７】すなわち本発明は、(１)シリカ(SiO2)分が
２３〜９０重量％、石灰(CaO)分が０〜３７重量％およ
びアルミナ(Al2O3)分が０〜４０重量％であって、残留
元素分が酸化物換算で０.１〜５０重量％およびハロゲ
ンを０.１〜１０重量％含有するスラグ組成物からなる
地盤改良材である。本発明の上記地盤改良材は、(２)上
記スラグ組成物とセメントとを配合してなる地盤改良材
を含む。That is, the present invention provides (1) a silica (SiO 2 ) content of 23 to 90% by weight, a lime (CaO) content of 0 to 37% by weight, and an alumina (Al 2 O 3 ) content of 0 to 40% by weight. And a soil improving material comprising a slag composition having a residual element content of 0.1 to 50% by weight in terms of oxide and a halogen content of 0.1 to 10% by weight. The ground improvement material of the present invention includes (2) a ground improvement material obtained by mixing the slag composition and cement.
【０００８】更に、本発明の地盤改良材は、(３)上記ス
ラグ組成物が、汚泥ゴミ廃棄物の焼却物を上記成分組成
となるように調整して高温溶融し、急冷してブレーン比
表面積３５００cm2/g以上に粉砕したものである地盤改
良材、(４)上記スラグ組成物とセメントの配合割合が、
スラグ組成物５〜５０重量％、セメント５０〜９５重量
％である地盤改良材、(５)上記スラグ組成物５〜５０重
量％、セメント５０〜９５重量％を配合した組成物１０
０重量部に対して石膏を１〜４０重量部配合した地盤改
良材を含む。Further, the ground improvement material of the present invention is characterized in that (3) the slag composition is prepared by melting an incinerated sludge refuse so as to have the above-mentioned composition and melting it at a high temperature; Ground improvement material that is ground to 3500 cm 2 / g or more, (4) the mixing ratio of the slag composition and cement is
Ground improvement material comprising 5 to 50% by weight of slag composition and 50 to 95% by weight of cement; (5) composition 10 containing 5 to 50% by weight of slag composition and 50 to 95% by weight of cement
It contains a ground improvement material containing 1 to 40 parts by weight of gypsum per 0 parts by weight.
【０００９】[0009]
【発明の実施の形態】本発明の地盤改良材に用いるスラ
グ組成物は、シリカ(SiO2)分が２３〜９０重量％、石灰
(CaO)分が０〜３７重量％およびアルミナ(Al2O3)分が０
〜４０重量％であって、残留元素分が酸化物換算で０.
１〜５０重量％およびハロゲンを０.１〜１０重量％含
有するものである。BEST MODE FOR CARRYING OUT THE INVENTION The slag composition used for the soil improvement material of the present invention has a silica (SiO 2 ) content of 23 to 90% by weight, and lime.
(CaO) content is 0 to 37% by weight and alumina (Al 2 O 3 ) content is 0
-40% by weight, and the residual element content is 0.1% in terms of oxide.
It contains 1 to 50% by weight and 0.1 to 10% by weight of halogen.
【００１０】シリカ(SiO2)分は２３〜９０重量％であ
り、２５〜９０重量％が好ましい。２３重量％より少な
いとスラグ化し難くなると共に強度の発現性が悪くな
る。９０重量％を上回るとスラグ化温度が高くなるので
好ましくない。石灰(CaO)分は０〜３７重量％であり、
１〜３５重量％が好ましい。なお、硬化体の強度発現性
を高めるにはCaO分/SiO分(重量比)が１.３以下のものが
好ましい。The silica (SiO 2 ) content is 23 to 90% by weight, preferably 25 to 90% by weight. If the content is less than 23% by weight, it becomes difficult to form a slag, and the strength development is deteriorated. If it exceeds 90% by weight, the slag-forming temperature is undesirably high. Lime (CaO) content is 0 to 37% by weight,
Preferred is 1-35% by weight. In order to enhance the strength development of the cured product, those having a CaO content / SiO content (weight ratio) of 1.3 or less are preferable.
【００１１】上記スラグ組成物はアルミナ(Al2O3)分を
含まなくても硬化するが、アルミナ分を含むことにより
スラグの水和においてゼオライトの生成が有利になる。
ただし、アルミナ分が４０重量％を超えるとスラグ化温
度が高くなり、また強度の発現性が悪くなる。従ってア
ルミナ分は０〜４０重量％の含有量が適当である。残留
元素分とは、鉄、アルカリ金属、チタン、マンガンおよ
びマグネシウムの各金属および非金属の燐であり、これ
らの１種または２種以上の合計量が０.ｌ〜５０重量％
である。これらの元素の一部およびハロゲンはスラグの
活性化に効果があるので０.１重量％以上含有するのが
好ましい。ただし、上記残留元素分が５０重量％を超
え、あるいはハロゲン含有量が１０重量％を上回るとい
ずれも強度の発現性が悪くなるので上記範囲内の含有量
が適当である。Although the above slag composition hardens even without containing alumina (Al 2 O 3 ), the formation of zeolite in hydration of slag is advantageous by including alumina.
However, when the alumina content exceeds 40% by weight, the slag-forming temperature becomes high, and the development of strength deteriorates. Therefore, the content of alumina is preferably from 0 to 40% by weight. The residual element is iron, alkali metal, titanium, manganese and magnesium, and nonmetallic phosphorus, and the total amount of one or more of these is 0.1 to 50% by weight.
It is. Since some of these elements and halogens are effective in activating slag, they are preferably contained in an amount of 0.1% by weight or more. However, when the above-mentioned residual element content exceeds 50% by weight or the halogen content exceeds 10% by weight, the strength developability deteriorates, so that the content within the above range is appropriate.
【００１２】本発明に用いる上記スラグ組成物は、下水
汚泥や都市ゴミあるいは産業廃棄物（これらを総称して
汚泥ゴミ廃棄物と云う）の焼却物を上記成分組成となる
ように、必要に応じて粘土ないし石灰石を加えて成分調
整し、高温溶融後、急冷して微粉化したものが好まし
い。因に、上記スラグ組成物は汚泥ゴミ廃棄物を用いる
以外に各純薬を用いて高温で溶融しても得ることができ
るが、上記スラグ組成物は汚泥ゴミ廃棄物の焼却物を溶
融したスラグ組成物の成分と大差なく、多くは実質的に
変わらないので、これを利用するのが好ましい。上記ス
ラグ組成物の成分範囲はこの汚泥ゴミ廃棄物焼却物の溶
融スラグの成分範囲に基づいている。[0012] The slag composition used in the present invention is optionally used so that incineration of sewage sludge, municipal waste, or industrial waste (collectively referred to as sludge waste) has the above-mentioned composition. It is preferable to add clay or limestone to adjust the components, melt at a high temperature, quench, and pulverize. Incidentally, the slag composition can be obtained by melting at a high temperature using each of the pure chemicals in addition to using the sludge waste, but the slag composition is obtained by melting the incinerated sludge waste. It is preferable to use this as it does not differ much from the components of the composition and many do not substantially change. The component range of the slag composition is based on the component range of the molten slag of the incinerated sludge waste.
【００１３】上記スラグ組成物における石灰分の含有量
は従来用いられている高炉スラグの石灰分より少なくて
も良好な活性を有し硬化する。この点が高炉スラグを用
いる従来のものと大きく異なる。一般に高炉スラグには
３８〜４５重量％の石灰分を含有し、この含有量が３５
重量％を下回ると活性が極端に低下することが知られて
いるが、上記汚泥ゴミ廃棄物の溶融スラグに含まれる石
灰分は概ね５〜３５重量％程度であり、高炉スラグより
も大幅に少ないにもかかわらず良好な活性を有する。[0013] Even if the lime content of the slag composition is less than the lime content of conventionally used blast furnace slag, it has good activity and hardens. This point is greatly different from the conventional one using blast furnace slag. Generally, blast furnace slag contains 38 to 45% by weight of lime, and this content is 35%.
It is known that the activity is extremely reduced when the content is less than 10% by weight, but the lime content in the molten slag of the above-mentioned sludge waste is about 5 to 35% by weight, which is much less than that of the blast furnace slag. Nevertheless it has good activity.
【００１４】なお、石灰分が８重量％未満の場合は強度
を補うためセメントを配合して用いるのが好ましい。セ
メントの種類は普通、早強、中庸熱等の各ポルトランド
セメントの一種以上を用いることができる。スラグ組成
物とセメントの配合割合は、スラグ組成物５〜５０重量
％、セメント５０〜９５重量％の範囲が適当である。ス
ラグ組成物が上記配合量より少ないと発明の目的を達せ
られず、多いと固化強度が低下する。より好ましい範囲
はスラグ組成物１０〜３０重量％、セメント７０〜９０
重量％である。When the lime content is less than 8% by weight, it is preferable to use a cement in order to supplement the strength. As the type of cement, one or more types of Portland cements such as ordinary, early high, and moderate heat can be used. The mixing ratio of the slag composition and the cement is suitably in the range of 5 to 50% by weight of the slag composition and 50 to 95% by weight of the cement. If the amount of the slag composition is less than the above amount, the object of the invention cannot be achieved, and if the amount is too large, the solidification strength decreases. More preferred ranges are 10 to 30% by weight of the slag composition and 70 to 90% of cement.
% By weight.
【００１５】さらに、セメントと共に石膏を併用しても
良い。石膏は二水、半水、無水の各石膏を一種以上を用
いることができる。なお、強度発現性を考慮すると無水
石膏が好ましい。石膏の配合量は、スラグ組成物とセメ
ントとからなる上記組成物１００重量部に対し、１〜４
０重量部の範囲が適当である。石膏の量が少ないと固化
強度が低く、多いと固化強度が低下すると共に固化物の
安定性が低下する。より好ましい範囲は５〜２５重量部
である。Further, gypsum may be used together with cement. As the gypsum, one or more of gypsum of dihydrate, hemihydrate and anhydrous can be used. Note that anhydrous gypsum is preferable in consideration of the strength development. The amount of the gypsum is 1 to 4 with respect to 100 parts by weight of the composition comprising the slag composition and the cement.
A range of 0 parts by weight is suitable. If the amount of gypsum is small, the solidification strength is low, and if it is large, the solidification strength is reduced and the stability of the solidified product is reduced. A more preferred range is 5 to 25 parts by weight.
【００１６】なお、上記スラグ組成物は、高温溶融した
ものを急冷して微粉化したものが好ましい。スラグ組成
物を微粉化することにより反応性が向上する。微粉化の
程度はブレーン比表面積３５００cm2/g以上が適当であ
る。因に、石膏の粒度は本発明の効果を損なわない範囲
であればとくに限定されない。例えば、ブレーン比表面
積２５００〜８０００cm2/g程度であれば良い。The slag composition is preferably one that has been melted at a high temperature and rapidly cooled to be pulverized. The reactivity is improved by pulverizing the slag composition. The degree of pulverization is suitably a Blaine specific surface area of 3500 cm 2 / g or more. Incidentally, the particle size of the gypsum is not particularly limited as long as the effect of the present invention is not impaired. For example, the brane specific surface area may be about 2500 to 8000 cm 2 / g.
【００１７】[0017]
【実施例および比較例】以下に本発明の実施例および比
較例を示す。なお、これらの実施例は本発明を限定する
ものではない。Examples and Comparative Examples Examples and comparative examples of the present invention are shown below. Note that these examples do not limit the present invention.
【００１８】実施例1〜12、比較例1〜3 表１に示す主成分からなるゴミ焼却溶融スラグを比表面
積3960cm2/gにボールミルにて粉砕したものと、普通ポ
ルトランドセメントおよび比表面積3600cm2/gの無水石
膏を表２に示す配合に混合した地盤改良材(実施例1〜1
2)を調製した。一方、普通セメント単味のものを比較例
１とし、高炉水砕スラグ（C/Sモル比=1.39、比表面積4170
cm2/g)を用いたものを比較例２、３とした。これらの地
盤改良材を、砂質土(含水比38%)、シルト(含水比63%)、
粘性土(含水比83%)の各土質にそれぞれ湿潤重量比で
３，５，７％添加混合し、７日養生後の一軸圧縮強さ(q
u)を測定した。安定性試験は、１日養生後の供試体を２
０℃水中に浸漬し、２８日後の長さ変化率を測定した。
これらの試験結果を表１にまとめて示した。 Examples 1 to 12 and Comparative Examples 1 to 3 Waste incineration molten slag composed of the main components shown in Table 1 was pulverized with a ball mill to a specific surface area of 3960 cm 2 / g, and ordinary portland cement and a specific surface area of 3600 cm 2 / g of anhydrous gypsum in the composition shown in Table 2 (Examples 1-1 to 1)
2) was prepared. On the other hand, plain cement plain was used as Comparative Example 1 and granulated blast furnace slag (C / S molar ratio = 1.39, specific surface area 4170)
cm 2 / g) were used as Comparative Examples 2 and 3. These soil improvement materials, sandy soil (water content 38%), silt (water content 63%),
3,5,7% by wet weight ratio was added to each soil of cohesive soil (water content 83%) and mixed, and the unconfined compressive strength (q
u) was measured. In the stability test, two days after curing for one day
It was immersed in water at 0 ° C., and the length change rate after 28 days was measured.
These test results are summarized in Table 1.
【００１９】シルト質土壌を除いて、スラグを配合する
ことにより普通セメント単味(比較例１)よりも固化強度
は上昇する。また、ゴミ焼却溶融スラグを用いた実施例
の試料は何れも高炉スラグを用いた比較例２、３と同等
の強度が得られる。ただし、スラグ配合量が３０重量％
より増加すると徐々に強度は低下する。従って、好まし
いスラグの配合量は１０〜３０重量％の範囲である。石
膏を配合した系では、石膏の配合量の増加に伴って強度
は増加傾向にあるものの、石膏配合量(内割り)が２５％
程度を超えると強度の低下傾向が見られ、長さ変化率が
急激に増大し、固化体の安定性を損なう可能性が示唆さ
れる。以上の結果から、本発明の地盤改良材の、好まし
い配合量は、溶融スラグ１０〜３０重量％、セメント７
０〜９０重量％、および石膏をこの組成物１００重量部
に対し、５〜２５重量部の範囲で添加したものである。Except for the silty soil, the addition of slag increases the solidification strength of plain cement (Comparative Example 1). Further, the samples of the examples using the refuse incineration molten slag can obtain the same strength as Comparative Examples 2 and 3 using the blast furnace slag. However, the slag content is 30% by weight.
As it increases further, the strength gradually decreases. Therefore, the preferred amount of the slag is in the range of 10 to 30% by weight. In the system containing gypsum, although the strength tends to increase as the amount of gypsum increases, the amount of gypsum (internally divided) is 25%
Above this level, the strength tends to decrease, and the rate of change in length increases sharply, suggesting that the stability of the solidified body may be impaired. From the above results, the preferred amount of the ground improvement material of the present invention is 10 to 30% by weight of molten slag, cement 7
0 to 90% by weight and gypsum are added in the range of 5 to 25 parts by weight based on 100 parts by weight of the composition.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】[0022]
【発明の効果】本発明の地盤改良材は、下水汚泥や都市
ゴミあるいは産業廃棄物などの汚泥ゴミ廃棄物を焼却処
理した溶融スラグを用いることができるので、経済性に
優れ、これらを資源化し、その有効利用を図ることがで
きる。また、本発明の地盤改良材は従来の高炉スラグを
用いたものと同等レべル以上の性能を有することから幅
広く利用することができる。Industrial Applicability The ground improvement material of the present invention can use molten slag obtained by incinerating sludge waste such as sewage sludge, municipal waste or industrial waste. , Can be used effectively. Further, the ground improvement material of the present invention can be widely used because it has a performance equal to or higher than that of a conventional blast furnace slag.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０９Ｋ 103:00 (72)発明者 岡元 豊重 千葉県佐倉市大作２丁目４番２号 秩父小 野田株式会社中央研究所内──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C09K 103: 00 (72) Inventor Toyoshige Okamoto 2-4-2 Daisaku, Sakura-shi, Chiba Pref. Chichibu Onoda Central Research Laboratory
Claims (5)
灰(CaO)分が０〜３７重量％およびアルミナ(Al2O3)分が
０〜４０重量％であって、残留元素分が酸化物換算で
０.１〜５０重量％およびハロゲンを０.１〜１０重量％
含有するスラグ組成物からなる地盤改良材。1. A silica (SiO 2 ) content of 23 to 90% by weight, a lime (CaO) content of 0 to 37% by weight and an alumina (Al 2 O 3 ) content of 0 to 40% by weight, and a residual element Is 0.1 to 50% by weight in terms of oxide and 0.1 to 10% by weight of halogen
A ground improvement material comprising a slag composition to be contained.
てなる地盤改良材。2. A ground improvement material comprising a mixture of the slag composition and cement.
焼却物を上記成分組成となるように調整して高温溶融
し、急冷してブレーン比表面積３５００cm2/g以上に粉
砕したものである請求項１または２に記載の地盤改良
材。3. The slag composition according to claim 1, wherein the incinerated sludge waste is adjusted to have the above-mentioned composition, melted at a high temperature, rapidly cooled, and pulverized to a Blaine specific surface area of 3500 cm 2 / g or more. The ground improvement material according to claim 1 or 2.
が、スラグ組成物５〜５０重量％、セメント５０〜９５
重量％である請求項２に記載の地盤改良材。4. The mixing ratio of the slag composition and the cement is 5 to 50% by weight of the slag composition and 50 to 95 of the cement.
The ground improvement material according to claim 2, which is in weight%.
ント５０〜９５重量％を配合した組成物１００重量部に
対して石膏を１〜４０重量部配合した地盤改良材。5. A ground improving material comprising 1 to 40 parts by weight of gypsum with respect to 100 parts by weight of a composition containing 5 to 50% by weight of the slag composition and 50 to 95% by weight of cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1027697A JP4013168B2 (en) | 1997-01-23 | 1997-01-23 | Ground improvement material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1027697A JP4013168B2 (en) | 1997-01-23 | 1997-01-23 | Ground improvement material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10204432A true JPH10204432A (en) | 1998-08-04 |
| JP4013168B2 JP4013168B2 (en) | 2007-11-28 |
Family
ID=11745798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1027697A Expired - Fee Related JP4013168B2 (en) | 1997-01-23 | 1997-01-23 | Ground improvement material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4013168B2 (en) |
Cited By (7)
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|---|---|---|---|---|
| US6673145B2 (en) * | 2001-05-23 | 2004-01-06 | Mecaroute | Process for manufacturing a soil treatment composition, soil treatment compositions and use of such compositions |
| JP2006219348A (en) * | 2005-02-10 | 2006-08-24 | Ube Ind Ltd | Hydraulic sintered material, cement composition and method of manufacturing hydraulic sintered material |
| JP2006326446A (en) * | 2005-05-25 | 2006-12-07 | Nippon Steel Corp | Construction sludge improvement method and improvement system used for it |
| JP4509210B1 (en) * | 2009-04-03 | 2010-07-21 | 勝彦 太田 | Improved treatment method for construction sludge |
| KR101366069B1 (en) * | 2013-07-01 | 2014-03-07 | 주식회사 티에스이앤씨 | Composition for soil stabilization, improvement, hardening, and compost fermentation promotion of contaminated sediment, and method of manufacturing the same |
| PL422988A1 (en) * | 2017-09-27 | 2019-04-08 | Mo-Bruk Spółka Akcyjna | Cement with the sulfate regulator of setting time |
| CN114289494A (en) * | 2021-12-31 | 2022-04-08 | 北京建工环境修复股份有限公司 | Remediation method for organic contaminated soil |
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1997
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673145B2 (en) * | 2001-05-23 | 2004-01-06 | Mecaroute | Process for manufacturing a soil treatment composition, soil treatment compositions and use of such compositions |
| JP2006219348A (en) * | 2005-02-10 | 2006-08-24 | Ube Ind Ltd | Hydraulic sintered material, cement composition and method of manufacturing hydraulic sintered material |
| JP2006326446A (en) * | 2005-05-25 | 2006-12-07 | Nippon Steel Corp | Construction sludge improvement method and improvement system used for it |
| JP4632865B2 (en) * | 2005-05-25 | 2011-02-16 | 新日本製鐵株式会社 | Construction sludge improvement method and improvement equipment used therefor |
| JP4509210B1 (en) * | 2009-04-03 | 2010-07-21 | 勝彦 太田 | Improved treatment method for construction sludge |
| JP2010240567A (en) * | 2009-04-03 | 2010-10-28 | Katsuhiko Ota | Improvement treatment method of construction sludge |
| KR101366069B1 (en) * | 2013-07-01 | 2014-03-07 | 주식회사 티에스이앤씨 | Composition for soil stabilization, improvement, hardening, and compost fermentation promotion of contaminated sediment, and method of manufacturing the same |
| PL422988A1 (en) * | 2017-09-27 | 2019-04-08 | Mo-Bruk Spółka Akcyjna | Cement with the sulfate regulator of setting time |
| CN114289494A (en) * | 2021-12-31 | 2022-04-08 | 北京建工环境修复股份有限公司 | Remediation method for organic contaminated soil |
| CN114289494B (en) * | 2021-12-31 | 2023-06-09 | 北京建工环境修复股份有限公司 | Repairing method of organic contaminated soil |
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