JPH0362880A - Water stopping material - Google Patents

Water stopping material

Info

Publication number
JPH0362880A
JPH0362880A JP19847189A JP19847189A JPH0362880A JP H0362880 A JPH0362880 A JP H0362880A JP 19847189 A JP19847189 A JP 19847189A JP 19847189 A JP19847189 A JP 19847189A JP H0362880 A JPH0362880 A JP H0362880A
Authority
JP
Japan
Prior art keywords
water
forming component
linear polymer
stopping material
polymerization catalyst
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
Application number
JP19847189A
Other languages
Japanese (ja)
Other versions
JP2841212B2 (en
Inventor
Yasuko Kumano
康子 熊野
Nobuyuki Sukegawa
助川 信行
Toshiro Takahashi
敏郎 高橋
Nobuhiko Hotta
信彦 堀田
Takeo Shiono
武男 塩野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP19847189A priority Critical patent/JP2841212B2/en
Publication of JPH0362880A publication Critical patent/JPH0362880A/en
Application granted granted Critical
Publication of JP2841212B2 publication Critical patent/JP2841212B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Sealing Material Composition (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE:To obtain a water stopping material having large mechanical strength and forming a gel having excellent elasticity and water absorbing properties by dissolving or dispersing a hydrophilic linear polymer forming component mainly consisting of N-methylolpropene amide and a polymerization catalyst in water. CONSTITUTION:The objective water-stopping material obtained by dissolving or dispersing (A) a hydrophilic linear polymer forming component obtained by blending (i) 100 pts.wt. N-methylolpropene amide with (ii) (meth)acrylic acid salt monomer, preferably of 0.6-120 pts.wt. blended with (B) a polymerization catalyst for the component A, preferably consisting of ammonium persulfate in water.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、根城的強度が大きくかつる甲カ性と吸水性に
優れたゲルを形成する止水材料に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a water-stopping material that forms a gel that has high fundamental strength, excellent shell properties, and excellent water absorption.

(従来の技術) 従来から/1111道、トンネル、地下鉄道なとの裏込
め注入相等として、ポリアクリルアミドなとの高吸水性
ポリマーを主体とする止水材料か広く使用されている。
(Prior Art) Water-stopping materials based on highly water-absorbing polymers such as polyacrylamide have been widely used as backfill injection phases for roads, tunnels, and underground railways.

しかしこのような止水桐材は、脆くて根城的強度が小さ
いため、荷重を支えることができないうえに、水圧等の
外圧がかかると潰れたり抜けたりするという問題があっ
た。
However, such waterproof paulownia wood is brittle and has low foundational strength, so it cannot support loads and has the problem of crushing or falling out when external pressure such as water pressure is applied.

またアクリルアミドのような親水性のポリマーを形成す
るモノマーに、重合触媒やその他の添加剤などを配合し
た止水材料も開発されているが、アクリルアミドは右毒
物質であるため、環境に多量に流出するようなことがあ
ると好ましくない。
Water-stopping materials have also been developed that are made by blending monomers that form hydrophilic polymers such as acrylamide with polymerization catalysts and other additives, but since acrylamide is a toxic substance, large amounts are released into the environment. I don't like it when something like that happens.

一方アスフアルド鋪装道路の亀裂補修には、従来から溶
融アスファルトあるいはアスファルト乳剤を流し込むと
いう方法か採られているか、溶融アスファルトは亀裂部
に入ると直ちに冷却固化してしまうため、亀裂の先端部
まで充分に充埴することができず、しかも強度か小さく
再度亀裂を生じやすいうえに、使用できる温度範囲か狭
いという難点があった。
On the other hand, to repair cracks in asphalt paved roads, the conventional method has been to pour molten asphalt or asphalt emulsion.Since molten asphalt immediately cools and solidifies once it enters the crack, it is difficult to repair cracks in asphalt. It cannot be filled with clay, has low strength and is prone to cracking again, and has the drawbacks of a narrow usable temperature range.

またアスファルト乳剤は、乾燥および固化に 1週間以
上を要し、かつ水分の含有率が約50重量%と高いため
、同化後の体積減少が著しいという問題があった。
In addition, asphalt emulsions require more than one week to dry and solidify, and have a high water content of about 50% by weight, resulting in a significant volume reduction after assimilation.

(発明の角q決しようとする課題) このように止水や亀裂袖修のために従来から各種の材料
か開発されているが、注入充填性、機械的強度および弾
力性か大きく、適当な固化時間を有する利料は得られて
いないのが現状であった。
(Problem to be solved by the invention) As described above, various materials have been developed for water stopping and crack repair. At present, it is not possible to obtain interest that has a solidification time.

本発明はこのような問題を解決するためになされたもの
で、注入充填性がIel < 、適当な時間で固化し、
かつ弾力性、吸水性、耐熱・耐寒性、耐荷重性等が良奸
で、機械的強度が大きいゲルを形成する止水桐材を堤供
することを1」的とする。
The present invention was made in order to solve such problems, and has an injection filling property of Iel <, solidification in an appropriate time,
The objective is to provide a waterproof paulownia wood that forms a gel with good elasticity, water absorption, heat/cold resistance, load resistance, etc. and high mechanical strength.

[発明の構成] (課題を解決するための手段) すなわち本発明のIL水材料は、(a)N−メチロール
プロペンアミドを主体とし、これにアクリル酸塩モノマ
ーまたはメタクリル酸塩モノマーを配合してtよる親水
性の線状ポリマー形成成分と、(b)前記親水性の線状
ポリマー形成成分の重合触媒と、必要に応じて(c)水
溶性の多価アルコルとを、水に溶航または分散させてな
ることを特徴としている。
[Structure of the Invention] (Means for Solving the Problems) That is, the IL water material of the present invention contains (a) N-methylolpropenamide as a main component, and an acrylate monomer or a methacrylate monomer is blended therein. A hydrophilic linear polymer-forming component according to t, (b) a polymerization catalyst for the hydrophilic linear polymer-forming component, and optionally (c) a water-soluble polyhydric alcohol are dissolved in water or It is characterized by being dispersed.

以下、上記各成分について説明する。Each of the above components will be explained below.

本発明に使用される(a)の親水性の線状ポリマー形成
成分のうち、生成分であるN−メチロールプロペンアミ
ドは、アクリルアミドのオリゴマーであるか、アクリル
アミドに比べてはるかに毒性が低く、かつ重合して機械
的強度や膨潤性が大きく固化11.1間の短いゲルを形
成する。
Among the hydrophilic linear polymer forming components (a) used in the present invention, the product N-methylolpropenamide is an oligomer of acrylamide or has much lower toxicity than acrylamide, and It polymerizes to form a gel with high mechanical strength and swelling properties and a short solidification time.

またN−メチロールプロペンアミドとともに配合するア
クリル酸塩モノマーまたはメタクリル酸塩モノマーとし
ては、ナトリウムアクリレートマグネシウムジアクリレ
−1・、カルシウムンアクリレート、アルミニウムジア
クリレート、ジンクジアクリレート、スタナスアクリレ
ート、ナトリウムメタクリレ−1・、マグネシウムジメ
タクリレ− 1−のような、アクリル酸またはメタクリ
ル酸のアルカリ金層、アルカリ土類金属等の金属塩が例
示される。特にナトリウム塩またはマグネシウム塩の金
属成分は土壌の構成成分であるので環境汚染の問題を引
き起すことがなく本発明に適している。
Acrylate monomers or methacrylate monomers to be blended with N-methylolpropenamide include sodium acrylate magnesium diacrylate-1, calcium acrylate, aluminum diacrylate, zinc diacrylate, stannas acrylate, and sodium methacrylate. Examples thereof include alkali gold layers of acrylic acid or methacrylic acid, metal salts of alkaline earth metals, etc., such as -1. and magnesium dimethacrylate -1-. In particular, the metal component of sodium salt or magnesium salt is a constituent of soil and therefore does not cause environmental pollution problems and is therefore suitable for the present invention.

(b)の前記親水性の線状ポリマー形成成分の重合触媒
としては、過硫酸アンモニウム、過硫酸ナトリウム、過
硫酸カリウム等が例示されるが、これらの中でも特に過
硫酸アンモニウムが適している。
Examples of the polymerization catalyst for the hydrophilic linear polymer forming component (b) include ammonium persulfate, sodium persulfate, potassium persulfate, etc. Among these, ammonium persulfate is particularly suitable.

なお重合反応の時間を短縮するために、亜硫酸アンモニ
ウム、あるいは亜硫酸カリウムのような反応促進剤を添
加するようにしてもよい。またジェタノールアミン、ト
リエタノールアミン、ヒドラジンのような還元剤を添加
することによって、重合反応をより一層速めることがで
き、さらに鉄イオン系等の酸化剤を添加することによっ
て、重合成重を迦らせることもHl能である。
Incidentally, in order to shorten the time of the polymerization reaction, a reaction accelerator such as ammonium sulfite or potassium sulfite may be added. In addition, by adding a reducing agent such as jetanolamine, triethanolamine, or hydrazine, the polymerization reaction can be further accelerated, and by adding an oxidizing agent such as an iron ion type, the polymerization reaction can be further accelerated. It is also Hl's ability to do so.

(C)の水溶性の多価アルコールは、ゲル状固化物に6
111力性を持たせ、かつ凍結貼止や乾燥11′1の体
積減少の防止のために必要に応じて配合される成分であ
る。このような多価アルコールとしては、例えばエチレ
ングリコール、グリセリン、イソプロピルアルコール等
があげられる。
The water-soluble polyhydric alcohol (C) is added to the gel-like solidified product.
This is a component that is added as necessary to impart 111 strength and to prevent volume reduction during freezing application and drying 11'1. Examples of such polyhydric alcohols include ethylene glycol, glycerin, and isopropyl alcohol.

本発明においてはこれらの各成分の他に、トリエタノー
ルアミン、N・N−メチレンビスアクリルアミドのよう
に、前記(a)成分から形成された親水性の線状ポリマ
ーに架橋部位を形成する成分を添加することができる。
In addition to these components, the present invention also includes components that form crosslinking sites in the hydrophilic linear polymer formed from component (a), such as triethanolamine and N/N-methylenebisacrylamide. Can be added.

次に上記各成分の配合量について説明する。Next, the blending amounts of each of the above components will be explained.

(a)のアクリル酸塩モノマーまたはメタクリル酸塩モ
ノマーは、ゲルの弾力性や吸水性をさらに高めるために
配合される成分であり、その配合量は、N−メチロール
プロペンアミド100重量部(以下単に部と示す。)に
対して0.6〜 120部の範囲とすることが望ましい
。アクリル酸塩モノマー等の配合量が0,6部より少な
いと、ゲルが固くなりすぎて弾力性に乏しくなり、反対
に 120部より多いと、ケルのまとまりが悪くなるば
かりでなくゲル中に気泡か生じるので好ましくない。
The acrylate monomer or methacrylate monomer (a) is a component that is blended to further improve the elasticity and water absorption of the gel, and its blending amount is 100 parts by weight of N-methylolpropenamide (hereinafter simply referred to as methacrylate monomer). It is desirable that the amount is in the range of 0.6 to 120 parts. If the amount of acrylate monomer etc. is less than 0.6 parts, the gel will become too hard and have poor elasticity, while if it is more than 120 parts, it will not only cause the gel to be poorly organized but also cause air bubbles in the gel. This is not desirable as it may result in

また(b)の重合触媒は、通常2〜10%の水溶岐で使
用され、固形分換券て、N−メチロールプロペンアミド
 100部に対して0.5〜10部配合される。
The polymerization catalyst (b) is usually used in a water content of 2 to 10%, and the solid content is 0.5 to 10 parts per 100 parts of N-methylolpropenamide.

また(C)の水溶性の多価アルコールの配合量は、N−
メチロールプロペンアミド 100部に対して400部
以下とすることが望ましい。多価アルコールの配合量か
400部を越えると、ゲルの上部に取込みきれない過剰
な多価アルコールが遊離して溜り好ましくない。
The amount of water-soluble polyhydric alcohol (C) is N-
The amount is desirably 400 parts or less per 100 parts of methylolpropenamide. If the amount of polyhydric alcohol exceeds 400 parts, the excess polyhydric alcohol that cannot be incorporated will be liberated and accumulate in the upper part of the gel, which is not preferable.

以上の各成分の配合量は、それぞれ所望の特性が得られ
るように、他の成分の配合量を勘案しながら上記範囲内
で適宜堆減される。
The blending amount of each of the above components is appropriately reduced within the above range while taking into account the blending amounts of other components so that the desired characteristics can be obtained.

本発明の11;水44 IIは、通常(a)の親水性の
線状ポリマー形成成分を水に溶方つ′または分散させた
A液と、(b)の重合触媒を含み必要に応じて(c)の
水溶性の多価アルコールを加えたB液との2液に調整さ
れ、使用直前に混合して用いられる。このとき特性の良
好なゲルを形成するために、A、B両液の合計で5〜5
0%の範囲で水を含有するように調整することか望まし
い。また混合、注入の作業性を良くするために、AI夜
とBl夜とをほぼ1:1の体積比で混合することかてき
るように、各成分の固形分濃度を調整することか望まし
い。
11 of the present invention; Water 44 II usually contains (a) a liquid A in which a hydrophilic linear polymer-forming component is dissolved or dispersed in water, and (b) a polymerization catalyst. It is prepared as a two-part solution with (c) solution B containing a water-soluble polyhydric alcohol, and is mixed immediately before use. At this time, in order to form a gel with good properties, a total of 5 to 5
It is desirable to adjust the water content to within a range of 0%. Further, in order to improve the workability of mixing and injection, it is desirable to adjust the solid content concentration of each component so that AI and Bl can be mixed at a volume ratio of approximately 1:1.

なお本発明の止水利料には、以上の各成分の他にセメン
)・、スラグ、砂、石粉(炭酸力ルンウム粉末)、木炭
粉、砕石粉、砂利、粘土、ミノソイル、ベントナイト あるいはピッチ、タール、ビチューメン、アスファルト
乳剤などの添加剤を、本発明の効果をそこなわない範囲
、例えば全体の10%以下の割合で添加することもでき
る。
In addition to the above-mentioned components, the still water charge of the present invention also includes cement, slag, sand, stone powder (carbonate powder), charcoal powder, crushed stone powder, gravel, clay, minosoil, bentonite, pitch, and tar. Additives such as bitumen, bitumen, and asphalt emulsions may be added within a range that does not impair the effects of the present invention, for example, in a proportion of 10% or less of the total.

(作用) 本発明の止水材料は、(a)N−メチロールプロペンア
ミドを主体とし、これにアクリル酸塩モノマーまたはメ
タクリル酸塩モノマーを配合してなる親水性の線状ポリ
マー形成成分が、(b)の重合触媒によって、水を包含
した状態で、充積された洞道、トンネル、地下鉄道など
の裏側や亀裂内部でゲル化する。
(Function) The water-stopping material of the present invention comprises (a) a hydrophilic linear polymer-forming component mainly composed of N-methylolpropenamide and blended with an acrylate monomer or a methacrylate monomer; By the polymerization catalyst b), it gels inside the cracks or behind the filled tunnels, tunnels, underground railways, etc. while containing water.

そしてこのケルは吸水性であり、水を吸収して膨潤する
ため、水の漏出や侵入を防止する働きをする。また弾力
性に富みかつ耐荷重性が良好なので、クラックが発生す
ることがなく、水圧がかかっても離脱することかない。
This kelp is water-absorbent and swells when it absorbs water, so it works to prevent water from leaking or entering. In addition, it is highly elastic and has good load-bearing properties, so it does not crack or fall off even when water pressure is applied.

さらにこのとき、(C)の水溶性の多価アルコルをとも
に配合すると、蒸気圧が高くなって乾燥時の体積減少の
防止など乾燥に対する耐性を向上させることができる。
Further, at this time, if the water-soluble polyhydric alcohol (C) is also blended, the vapor pressure will increase, and resistance to drying can be improved, such as preventing volume reduction during drying.

(実施例) 以下、本発明の実施例について説明する。(Example) Examples of the present invention will be described below.

実施例1、2 表に示す配合組成のA液とB液とを、はぼ1:1の体積
比で711合して固化させた。また比較のために、マグ
ネシウムジアクリレートを配合しないで調製したA ’
ttlに、実施例で使用したB液を混合して固化させた
Examples 1 and 2 Liquids A and B having the composition shown in the table were combined at a volume ratio of approximately 1:1 and solidified. For comparison, A' was prepared without adding magnesium diacrylate.
Solution B used in the example was mixed with ttl and solidified.

次いで得られたゲルを使用して、直径4cm高さ0 、
 7 cmの円盤状の試料J4をそれぞれ作製し、その
弾力性を調べた。
The resulting gel was then used to form a mold with a diameter of 4 cm and a height of 0.
A 7 cm disk-shaped sample J4 was prepared, and its elasticity was examined.

またこれらの絨料片を100 mN!.の蒸溜水中に浸
漬し、吸水による体積の経口変化をalll定した。
Also, the pressure of these pieces of cloth is 100 mN! .. The samples were immersed in distilled water to determine the oral volume change due to water absorption.

さらに5日間浸漬後の体積を71111定し、元の体積
に対する倍十を求めるとともに、吸水後の試料片の弾力
性を調べた。
Further, the volume after immersion for 5 days was determined to be 71111, and the number of times the original volume was calculated, and the elasticity of the sample piece after water absorption was examined.

また、この試料片を標準状態の雰囲気の中で乾燥して事
実上平衡したときの体積をillll定した。
In addition, the volume of this sample piece when it was dried in a standard atmosphere and virtually equilibrated was determined.

これらの測定拮果を、それぞれ表下欄および図面のグラ
フに示す。なお、配合組成は「部」で示した。
These measurement results are shown in the bottom column of the table and in the graph of the drawing, respectively. In addition, the blending composition is shown in "parts".

(以下余白) ] 性 吸水後   他め 極め 引i力性   で大 て大 N−MPA : N−メチロールプロヘンアミドMgD
A :マグネシウムジアクリレ 1 130%水溶波 大 1 1’EA:)リエタノールアミン 過硫酸アンモニウム=5%水m ?& EG:エチレングリコール [発明の効果] 以上説明したように本発明の止水桐材は、根城的強度、
耐荷重性、耐熱耐寒性、耐薬品性等に優れており、また
引1力性、吸水性が良好であるので、洞道、トンネル、
地下鉄道等の裏込め注入利あるいはアスファルト舗装道
路の亀裂補修材として好適している。
(Left below) ] After water absorption Extremely attractive and very large N-MPA: N-methylolprohenamide MgD
A: Magnesium diacrylate 1 130% aqueous wave size 1 1'EA:) Reethanolamine ammonium persulfate = 5% water m? & EG: Ethylene glycol [Effects of the invention] As explained above, the waterproof paulownia wood of the present invention has fundamental strength,
It has excellent load resistance, heat resistance, cold resistance, chemical resistance, etc., as well as good tensile strength and water absorption, so it can be used in caves, tunnels, etc.
It is suitable for backfilling in underground railways, etc., or as a crack repair material for asphalt-paved roads.

【図面の簡単な説明】[Brief explanation of drawings]

図面は、丈施例および比較例によって得られたゲルから
なる試料片について、吸水による体積の経口変化をA1
1l定した結果を表すグラフである。
The drawing shows the oral change in volume due to water absorption for sample pieces made of gels obtained in the Length Example and Comparative Example at A1.
1 is a graph showing the results obtained by determining 1l.

Claims (2)

【特許請求の範囲】[Claims] (1)(a)N−メチロールプロペンアミドを主体とし
、これにアクリル酸塩モノマーまたはメタクリル酸塩モ
ノマーを配合してなる親水性の線状ポリマー形成成分と
、(b)前記親水性の線状ポリマー形成成分の重合触媒
とを、水に溶解または分散させてなることを特徴とする
止水材料。
(1) (a) a hydrophilic linear polymer-forming component consisting mainly of N-methylolpropenamide and blended with an acrylate monomer or a methacrylate monomer, and (b) the hydrophilic linear polymer forming component; A water-stopping material comprising a polymer-forming component and a polymerization catalyst dissolved or dispersed in water.
(2)(a)N−メチロールプロペンアミドを主体とし
、これにアクリル酸塩モノマーまたはメタクリル酸塩モ
ノマーを配合してなる親水性の線状ポリマー形成成分と
、(b)前記親水性の線状ポリマー形成成分の重合触媒
と、(c)水溶性の多価アルコールとを、水に溶解また
は分散させてなることを特徴とする止水材料。
(2) (a) a hydrophilic linear polymer-forming component consisting mainly of N-methylolpropenamide and blended with an acrylate monomer or a methacrylate monomer; and (b) the hydrophilic linear polymer forming component. A water-stopping material comprising a polymerization catalyst as a polymer-forming component and (c) a water-soluble polyhydric alcohol dissolved or dispersed in water.
JP19847189A 1989-07-31 1989-07-31 Water stop material Expired - Fee Related JP2841212B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19847189A JP2841212B2 (en) 1989-07-31 1989-07-31 Water stop material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19847189A JP2841212B2 (en) 1989-07-31 1989-07-31 Water stop material

Publications (2)

Publication Number Publication Date
JPH0362880A true JPH0362880A (en) 1991-03-18
JP2841212B2 JP2841212B2 (en) 1998-12-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722522A1 (en) * 1994-07-12 1996-01-19 Malliard Hugues De Stabilising soil against erosion
KR20030019984A (en) * 2001-08-28 2003-03-08 신두석 Computer accessary

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417325B (en) * 2011-08-09 2013-03-27 重庆市智翔铺道技术工程有限公司 Tunnel bituminous pavement clearing functional layer
CN102408657A (en) * 2011-08-09 2012-04-11 重庆市智翔铺道技术工程有限公司 Tunnel bituminous pavement light color functional layer based on light color cementing material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722522A1 (en) * 1994-07-12 1996-01-19 Malliard Hugues De Stabilising soil against erosion
KR20030019984A (en) * 2001-08-28 2003-03-08 신두석 Computer accessary

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