JP2000061424A - Soil caking agent - Google Patents
Soil caking agentInfo
- Publication number
- JP2000061424A JP2000061424A JP10232589A JP23258998A JP2000061424A JP 2000061424 A JP2000061424 A JP 2000061424A JP 10232589 A JP10232589 A JP 10232589A JP 23258998 A JP23258998 A JP 23258998A JP 2000061424 A JP2000061424 A JP 2000061424A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- soil
- parts
- solidifying agent
- soil solidifying
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は処理土壌が中性付近
のｐＨを維持出来るような土壌固化剤に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil solidifying agent capable of maintaining the pH of treated soil near neutrality.
【０００２】[0002]
【発明の背景】シールド工法、地中連続壁工法、浚渫工
法、表層や深層地盤改良工法等からの発生土、あるいは
一般掘削工事等から発生する一般残土は、含水率が高く
流動性のある場合には固化させる必要がある。この場合
の固化物は運搬、築構、埋立て等の作業上支障のない強
度を発現し、また固化物が産業廃棄物としての指定を受
けないようにするためにｐＨが中性付近（５．８〜８．
６の範囲）であることが好ましい。BACKGROUND OF THE INVENTION Soil generated from shield construction methods, underground continuous wall construction methods, dredging construction methods, surface and deep ground improvement methods, etc., or general residual soil generated from general excavation work, etc., have high water content and fluidity. Needs to solidify. In this case, the solidified product exhibits strength that does not hinder work such as transportation, construction, and land reclamation, and the pH of the solidified product is around neutral (5 to prevent the solidified product from being designated as industrial waste. .8-8.
It is preferably in the range of 6).
【０００３】[0003]
【従来の技術】上記土壌を固化させるために土壌固化剤
を使用するが、従来の固化剤としては、セメント系固化
剤や生石灰系固化剤等が使用されていた。2. Description of the Related Art A soil solidifying agent is used to solidify the above-mentioned soil. As a conventional solidifying agent, a cement type solidifying agent, a quick lime type solidifying agent or the like has been used.
【０００４】[0004]
【発明が解決しようとする課題】このような固化剤を使
用した固化物のｐＨは、上限である８．６よりもはるか
に高くなる。しかもセメント系固化剤では固化物が作業
上支障のない強度を獲得するまでに長時間（２４時間以
上）を要すると言う問題点があり、また生石灰系固化剤
では固化物の初期強度は短時間で発現するが、水と接触
した場合、固化物が水に膨潤溶解して崩壊してしまうと
言う問題点がある。The pH of the solidified product using such a solidifying agent is much higher than the upper limit of 8.6. In addition, the cement-based solidifying agent has a problem that it takes a long time (24 hours or more) until the solidified material has strength that does not hinder the work, and the quick-lime solidifying agent has a short initial strength of the solidified material. However, when contacted with water, there is a problem that the solidified product swells and dissolves in water and collapses.
【０００５】[0005]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、半水石膏２０〜８０重量
部と、高炉スラグ８０〜２０重量部と、硫酸化合物０．
０５〜５．０重量部とからなる土壌固化剤を提供するも
のであり、上記土壌固化剤には望ましくは更に金属の酸
化物および／または水酸化物および／または塩化物を
０．２〜１０重量部、更に水と反応して炭酸ガスを発生
する化合物を０．１〜５．０重量部、更に高分子凝集剤
および／または吸水材を１〜５重量部、更に増量剤を３
〜２０重量％混合されてもよく、また該硫酸化合物はミ
ョウバン石であることが望ましい。Means for Solving the Problems As means for solving the above-mentioned conventional problems, the present invention comprises 20 to 80 parts by weight of gypsum hemihydrate, 80 to 20 parts by weight of blast furnace slag, and a sulfuric acid compound of 0.
The present invention provides a soil solidifying agent consisting of 0,05 to 5.0 parts by weight, and the soil solidifying agent preferably further contains a metal oxide and / or hydroxide and / or chloride in an amount of 0.2 to 10 parts by weight. Parts by weight, 0.1 to 5.0 parts by weight of a compound that reacts with water to generate carbon dioxide, 1 to 5 parts by weight of a polymer coagulant and / or a water absorbing material, and 3 parts of an extender.
˜20% by weight may be mixed, and the sulfate compound is preferably alumite.
【０００６】[0006]
【発明の実施の形態】本発明の土壌固化剤の主要成分は
半水石膏と高炉スラグである。上記半水石膏と高炉スラ
グとはケイ酸カルシウム反応によって硬化して土壌を固
化せしめる。しかし半水石膏と高炉スラグとのみによっ
て硬化させた土壌固化物は経時的にｐＨが高くなってア
ルカリが溶出する。そこで該土壌固化物の経時的なｐＨ
のアルカリ側への変化を防ぐために、本発明では硫酸化
合物を混合する。The main components of the soil solidifying agent of the present invention are hemihydrate gypsum and blast furnace slag. The hemihydrate gypsum and the blast furnace slag are hardened by the calcium silicate reaction to solidify the soil. However, the pH of the soil solidified product hardened only with hemihydrate gypsum and blast furnace slag increases with time, and the alkali is eluted. Therefore, the pH of the soil solidified material over time
In the present invention, a sulfuric acid compound is mixed in order to prevent the change to the alkaline side.
【０００７】上記硫酸化合物としては、例えば硫酸カリ
ウム、硫酸ナトリウム、硫酸アンモニウム、硫酸マグネ
シウム、硫酸バリウム、硫酸亜鉛、硫酸アルミニウム、
カリミョウバン、ミョウバン石、重晶石等がある。上記
硫酸化合物は、土壌固化物のｐＨを長期にわたって中性
付近（例えばｐＨ５．６〜８．６の範囲）に維持するば
かりではなく、半水石膏と高炉スラグとの硬化反応を促
進する。Examples of the sulfuric acid compound include potassium sulfate, sodium sulfate, ammonium sulfate, magnesium sulfate, barium sulfate, zinc sulfate, aluminum sulfate,
There are potassium alum, alum and barite. The above-mentioned sulfuric acid compound not only maintains the pH of the soil solidified substance in the vicinity of neutrality (for example, in the range of pH 5.6 to 8.6) for a long period of time, but also accelerates the hardening reaction between the hemihydrate gypsum and the blast furnace slag.
【０００８】本発明においては、土壌固化物の強度を向
上せしめるために、酸化マグネシウム、酸化カルシウム
等の金属酸化物（特にアルカリ土類金属酸化物）、水酸
化マグネシウム、水酸化カルシウム等の金属水酸化物
（特にアルカリ土類金属水酸化物）、塩化マグネシウ
ム、塩化カルシウム等の金属塩化物（特にアルカリ土類
金属塩化物）、ドロマイト等が添加されてもよい。上記
硫酸化合物の中でもミョウバン石は土壌固化物の強度も
向上させるので、該金属酸化物、金属水酸化物、金属塩
化物に代えて、あるいはそれと共に使用出来る。In the present invention, in order to improve the strength of the solidified soil, metal oxides such as magnesium oxide and calcium oxide (particularly alkaline earth metal oxides), metal water such as magnesium hydroxide and calcium hydroxide are used. Oxides (particularly alkaline earth metal hydroxides), metal chlorides such as magnesium chloride and calcium chloride (particularly alkaline earth metal chlorides), dolomite and the like may be added. Among the above-mentioned sulfuric acid compounds, alum stone also improves the strength of the soil solidified matter, and thus can be used in place of or together with the metal oxide, metal hydroxide or metal chloride.
【０００９】本発明においては、半水石膏と高炉スラグ
との反応を更に促進すると共に特に水中養生の場合の土
壌固化物の強度を増強するために、水と反応して炭酸ガ
スを発生する化合物を添加してもよい。このような化合
物としては、炭酸カリウム、炭酸ナトリウム、炭酸アン
モニウム等の炭酸塩、重炭酸カリウム、重炭酸ナトリウ
ム、重炭酸アンモニウム等の重炭酸塩、エチレンカーボ
ネート、イソシアナート化合物等が例示される。In the present invention, a compound which reacts with water to generate carbon dioxide gas in order to further promote the reaction between hemihydrate gypsum and blast furnace slag and to enhance the strength of the soil solidified product particularly in the case of underwater curing. May be added. Examples of such compounds include carbonates such as potassium carbonate, sodium carbonate and ammonium carbonate, bicarbonates such as potassium bicarbonate, sodium bicarbonate and ammonium bicarbonate, ethylene carbonate and isocyanate compounds.
【００１０】本発明において、処理対象の土壌が高含水
率の場合には、更に高分子凝集剤および／または吸水材
を添加することが望ましい。該高分子凝集剤としてはポ
リアクリル酸ナトリウム、ポリアクリルアミド、アクリ
ル酸ナトリウム−アクリルアミド共重合体、ポリエチレ
ンオキサイド等があり、該吸水材としては下水焼却灰、
多孔性木材炭化物、活性炭、ケイソウ土、鉱物粉末等が
ある。In the present invention, when the soil to be treated has a high water content, it is desirable to further add a polymer flocculant and / or a water absorbing material. Examples of the polymer flocculant include sodium polyacrylate, polyacrylamide, sodium acrylate-acrylamide copolymer, polyethylene oxide, and the like, and the water absorbing material includes sewage incineration ash,
Examples include porous wood carbide, activated carbon, diatomaceous earth, and mineral powder.
【００１１】本発明の土壌固化剤を増量するために、更
に増量剤が添加されてもよい。該増量剤は本発明の土壌
固化剤の土壌固化作用に悪影響を及ぼさないものが望ま
しく、このような増量剤としては、例えばフライアッシ
ュ、炭酸カルシウム、カオリカ、クレー等がある。To extend the amount of the soil-solidifying agent of the present invention, a bulking agent may be added. The extender is preferably one that does not adversely affect the soil-solidifying action of the soil-solidifying agent of the present invention. Examples of such extenders include fly ash, calcium carbonate, kaolin, clay and the like.
【００１２】本発明の土壌固化剤において、半水石膏は
２０〜８０重量部の範囲で添加され、高炉スラグは８０
〜２０重量部の範囲で添加される。上記範囲内で石膏と
高炉スラグとの硬化反応は順調に進行する。In the soil solidifying agent of the present invention, hemihydrate gypsum is added in a range of 20 to 80 parts by weight, and blast furnace slag is added in an amount of 80.
Is added in the range of ˜20 parts by weight. Within the above range, the hardening reaction between gypsum and blast furnace slag proceeds smoothly.
【００１３】硫酸化合物の添加量は０．０５〜５．０重
量部とされる。上記添加量範囲を下回ると、硫酸化合物
の添加効果は奏されなく、また上記添加量範囲を上回る
と、土壌固化物のｐＨが低くなり過ぎたり、強度が低下
したりする。The amount of the sulfuric acid compound added is 0.05 to 5.0 parts by weight. Below the above-mentioned addition amount range, the effect of adding the sulfuric acid compound will not be exhibited, and above the above-mentioned addition amount range, the pH of the soil solidified product will become too low or the strength will decrease.
【００１４】金属の酸化物および／または水酸化物およ
び／または塩化物は０．２〜１０重量部混合され、水と
反応して炭酸ガスを発生する化合物は０．１〜５．０重
量部混合され、高分子凝集剤および／または吸水材は１
〜５重量部混合され、夫々土壌固化物の硬化や強度に悪
影響を及ぼすことなく、かつ夫々の有する作用効果が顕
著に発揮される。また増量剤を添加する場合には３〜２
０重量部添加される。The metal oxide and / or hydroxide and / or chloride are mixed in an amount of 0.2 to 10 parts by weight, and the compound which reacts with water to generate carbon dioxide is 0.1 to 5.0 parts by weight. 1 mixed with polymeric flocculant and / or water absorbent
The mixture is mixed in an amount of up to 5 parts by weight, and exerts a remarkable effect without adversely affecting the hardening and strength of the solidified soil. Moreover, when adding a filler, it is 3 to 2
0 parts by weight are added.
【００１５】[0015]
【発明の効果】本発明では半水石膏と高炉スラグと使用
するが、上記半水石膏は土壌固化物に良好に初期強度を
与え（固化３時間後の一軸圧縮強度０．５kg／cm2 以
上）、高炉スラグは土壌固化物に長期間経過後の高強度
（固化１日後の一軸圧縮強度１．０kg／cm2 以上）を与
える。また本発明では更に硫酸化合物を添加するから、
土壌固化物のｐＨは長期間中性付近（例えば水道法第４
条の水質基準許容値ｐＨ５．８〜８．６の範囲）におさ
まるようになる。INDUSTRIAL APPLICABILITY In the present invention, hemihydrate gypsum and blast furnace slag are used, but the hemihydrate gypsum gives a good initial strength to soil solidified matter (uniaxial compressive strength 0.5 kg / cm 2 or more after 3 hours of solidification). ), Blast furnace slag gives soil solidified material high strength after a long period of time (uniaxial compressive strength of 1.0 kg / cm 2 or more after 1 day of solidification). Further, in the present invention, since a sulfuric acid compound is further added,
The pH of soil solidified matter is near neutral for a long period of time (for example, Water Supply Act No. 4).
It falls within the water quality standard allowable value of pH range of 5.8 to 8.6).
【００１６】[0016]
【実施例】〔実施例１〕一般掘削工事から発生した関東
ローム質の土壌を含水率５０重量％になるように調整し
て試料土とした。該試料土１０００ccに、半水石膏５０
重量部、高炉スラグ５０重量部、カリミョウバン０．５
重量部、重炭酸アンモニウム０．５重量部、フライアッ
シュ１０重量部からなる混合物を１００ｇ添加混合して
固化せしめた。固化１時間後の一軸圧縮強度は１．７kg
／cm2 、ｐＨは７．２、１日後の一軸圧縮強度２．５kg
／cm2 、ｐＨは６．９であった。Example 1 A Kanto loamy soil generated from general excavation work was adjusted to a water content of 50% by weight to obtain a sample soil. 50 ml of hemihydrate gypsum on 1000 cc of the sample soil
Parts by weight, blast furnace slag 50 parts by weight, potassium alum 0.5
100 g of a mixture of 1 part by weight, 0.5 parts by weight of ammonium bicarbonate and 10 parts by weight of fly ash was added and mixed to solidify. Uniaxial compressive strength after 1 hour of solidification is 1.7 kg
/ Cm 2 , pH is 7.2, uniaxial compressive strength after 1 day 2.5 kg
/ Cm 2 , pH was 6.9.
【００１７】〔実施例２〕実施例１で使用した試料土１
０００ccに、半水石膏５０重量部、高炉スラグ５０重量
部、硫酸アルミニウム５重量部、塩化マグネシウム０．
８重量部、重炭酸ナトリウム０．５重量部、ドロマイト
１０重量部、フライアッシュ１０重量部からなる混合物
を１００ｇ添加混合して固化せしめた。固化１時間後の
一軸圧縮強度は２．５kg／cm2 、ｐＨは６．９、１日後
の一軸圧縮強度３．５kg／cm2 、ｐＨは６．４であっ
た。Example 2 Sample soil 1 used in Example 1
50 parts by weight of gypsum hemihydrate, 50 parts by weight of blast furnace slag, 5 parts by weight of aluminum sulfate, and magnesium chloride of 0.
100 g of a mixture of 8 parts by weight, 0.5 part by weight of sodium bicarbonate, 10 parts by weight of dolomite, and 10 parts by weight of fly ash was added and mixed to solidify. The uniaxial compressive strength after solidification 1 hour was 2.5 kg / cm 2 , the pH was 6.9, and the uniaxial compressive strength after 1 day was 3.5 kg / cm 2 and the pH was 6.4.
【００１８】〔実施例３〕実施例１で使用した土壌を含
水率７５重量％になるように調整して試料土とした。該
試料土１０００ccに、半水石膏５０重量部、高炉スラグ
５０重量部、ミョウバン石５重量部、エチレンカーボネ
ート０．３重量部、フライアッシュ１０重量部、ポリア
クリル酸ナトリウム０．１重量部からなる混合物を１０
０ｇ添加混合して固化せしめた。固化１時間後の一軸圧
縮強度は０．７kg／cm2 、ｐＨは６．９、１日後の一軸
圧縮強度３．５kg／cm2 、ｐＨは６．４であった。[Example 3] The soil used in Example 1 was adjusted to a water content of 75% by weight to obtain a sample soil. 50 parts by weight of hemihydrate gypsum, 50 parts by weight of blast furnace slag, 5 parts by weight of alum, 0.3 parts by weight of ethylene carbonate, 10 parts by weight of fly ash, and 0.1 parts by weight of sodium polyacrylate are added to 1000 cc of the sample soil. Mix 10
0 g was added and mixed to solidify. The uniaxial compressive strength after solidification 1 hour was 0.7 kg / cm 2 , the pH was 6.9, and the uniaxial compressive strength after 1 day was 3.5 kg / cm 2 and the pH was 6.4.
【００１９】〔比較例１〕実施例１において、カリミョ
ウバンを使用しない場合には、土壌固化物１時間後の一
軸圧縮強度は０．８kg／cm2 、ｐＨは７．５、１日後の
一軸圧縮強度１．８kg／cm2 、ｐＨは９．０であった。Comparative Example 1 In Example 1, when potassium alum was not used, the uniaxial compressive strength after 1 hour of soil solidification was 0.8 kg / cm 2 , the pH was 7.5, and the uniaxial after 1 day. The compressive strength was 1.8 kg / cm 2 and the pH was 9.0.
【００２０】〔比較例２〕実施例２において、硫酸アル
ミニウムを使用しない場合には、土壌固化物１時間後の
一軸圧縮強度は１．８kg／cm2 、ｐＨは７．４、１日後
の一軸圧縮強度２．７kg／cm2 、ｐＨは８．９であっ
た。[Comparative Example 2] In Example 2, when aluminum sulfate was not used, the uniaxial compressive strength after 1 hour of soil solidification was 1.8 kg / cm 2 , and the pH was 7.4 after 1 day. The compressive strength was 2.7 kg / cm 2 , and the pH was 8.9.
【００２１】〔比較例３〕実施例３において、ミョウバ
ン石を使用しない場合には、土壌固化物１時間後の一軸
圧縮強度は０．４kg／cm2 、ｐＨは７．７、１日後の一
軸圧縮強度０．９５kg／cm2 、ｐＨは９．３であった。[Comparative Example 3] In Example 3, when alum was not used, the uniaxial compressive strength after 1 hour of soil solidification was 0.4 kg / cm 2 , the pH was 7.7, and the uniaxial after 1 day. The compressive strength was 0.95 kg / cm 2 , and the pH was 9.3.
Claims (6)
８０〜２０重量部と、硫酸化合物０．０５〜５．０重量
部とからなる土壌固化剤1. A soil solidifying agent comprising 20 to 80 parts by weight of hemihydrate gypsum, 80 to 20 parts by weight of blast furnace slag, and 0.05 to 5.0 parts by weight of a sulfuric acid compound.
物および／または水酸化物および／または塩化物を０．
２〜１０重量部混合した土壌固化剤2. The soil solidifying agent according to claim 1, further comprising a metal oxide and / or hydroxide and / or chloride.
Soil solidifying agent mixed with 2 to 10 parts by weight
と反応して炭酸ガスを発生する化合物を０．１〜５．０
重量部混合した土壌固化剤3. The soil solidifying agent according to claim 1 or 2, further containing 0.1 to 5.0 of a compound which reacts with water to generate carbon dioxide gas.
Soil solidifying agent mixed by weight
に、更に高分子凝集剤および／または吸水材を１〜５重
量部混合した土壌固化剤4. A soil solidifying agent obtained by mixing 1 to 5 parts by weight of a polymer flocculant and / or a water absorbing material with the soil solidifying agent of claim 1, 2 or 3.
化剤に、更に増量剤を３〜２０重量％混合した土壌固化
剤5. A soil solidifying agent obtained by further mixing the soil solidifying agent according to claim 1, 2, 3 or 4 with an extender in an amount of 3 to 20% by weight.
１〜５に記載の土壌固化剤6. The soil solidifying agent according to claim 1, wherein the sulfuric acid compound is alum stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23258998A JP2992018B1 (en) | 1998-08-19 | 1998-08-19 | Soil hardening agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23258998A JP2992018B1 (en) | 1998-08-19 | 1998-08-19 | Soil hardening agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2992018B1 JP2992018B1 (en) | 1999-12-20 |
| JP2000061424A true JP2000061424A (en) | 2000-02-29 |
Family
ID=16941738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23258998A Expired - Lifetime JP2992018B1 (en) | 1998-08-19 | 1998-08-19 | Soil hardening agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2992018B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109829A (en) * | 1998-10-01 | 2000-04-18 | Ube Ind Ltd | Solidifying material for moisture-containing soil and improvement of solidification of moisture-containing soil |
| JP2003064361A (en) * | 2001-08-29 | 2003-03-05 | Matsuda Giken Kogyo Kk | Soil hardener |
| JPWO2004078374A1 (en) * | 2003-03-03 | 2006-06-08 | 日本板硝子株式会社 | Soil conditioner |
| JP2007301418A (en) * | 2006-01-26 | 2007-11-22 | Jfe Mineral Co Ltd | Soil cleaning material |
| JP2008255360A (en) * | 2008-05-20 | 2008-10-23 | Chiyoda Ute Co Ltd | Soil modifying material and soil improving method |
| JP2010208870A (en) * | 2009-03-06 | 2010-09-24 | Yoshino Gypsum Co Ltd | Gypsum composition capable of restraining occurrence of hydrogen sulfide and gypsum-based building material |
| JP2011088824A (en) * | 2011-02-10 | 2011-05-06 | Yoshino Gypsum Co Ltd | Gypsum composition controllable of generation of hydrogen sulfide, gypsum-based building material, and gypsum-based solidifying material |
| JP2014185300A (en) * | 2013-03-25 | 2014-10-02 | Ube Material Industries Ltd | Soil solidification agent and soil solidification method |
-
1998
- 1998-08-19 JP JP23258998A patent/JP2992018B1/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109829A (en) * | 1998-10-01 | 2000-04-18 | Ube Ind Ltd | Solidifying material for moisture-containing soil and improvement of solidification of moisture-containing soil |
| JP2003064361A (en) * | 2001-08-29 | 2003-03-05 | Matsuda Giken Kogyo Kk | Soil hardener |
| JPWO2004078374A1 (en) * | 2003-03-03 | 2006-06-08 | 日本板硝子株式会社 | Soil conditioner |
| JP2007301418A (en) * | 2006-01-26 | 2007-11-22 | Jfe Mineral Co Ltd | Soil cleaning material |
| JP2008255360A (en) * | 2008-05-20 | 2008-10-23 | Chiyoda Ute Co Ltd | Soil modifying material and soil improving method |
| JP2010208870A (en) * | 2009-03-06 | 2010-09-24 | Yoshino Gypsum Co Ltd | Gypsum composition capable of restraining occurrence of hydrogen sulfide and gypsum-based building material |
| JP2011088824A (en) * | 2011-02-10 | 2011-05-06 | Yoshino Gypsum Co Ltd | Gypsum composition controllable of generation of hydrogen sulfide, gypsum-based building material, and gypsum-based solidifying material |
| JP2014185300A (en) * | 2013-03-25 | 2014-10-02 | Ube Material Industries Ltd | Soil solidification agent and soil solidification method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2992018B1 (en) | 1999-12-20 |
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