JPS58138777A - Soil hardening agent - Google Patents
Soil hardening agentInfo
- Publication number
- JPS58138777A JPS58138777A JP2084882A JP2084882A JPS58138777A JP S58138777 A JPS58138777 A JP S58138777A JP 2084882 A JP2084882 A JP 2084882A JP 2084882 A JP2084882 A JP 2084882A JP S58138777 A JPS58138777 A JP S58138777A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- sodium
- cement
- hardening agent
- carbonate
- 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
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、有機質を含む特殊土壌、例えば関東ローム、
ビート、黒色上等の特殊土壌、ヘドロ及びベントナイト
を大量に含む泥水等、粉状物及びスラリー状物をセメン
トと共に使用する土壌硬化剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides special soil containing organic matter, such as Kanto loam,
This invention relates to soil hardening agents that use powdered and slurry-like materials, such as beets, special soils such as black top, muddy water containing large amounts of sludge and bentonite, together with cement.
上記の様な有機不純物を含む土壌及びベントナイトを含
む泥水はセメントを加え凝結硬化しようとしても特殊土
壌及び泥水に含まれているアミン酸とセメントペースト
中のＣａＯが反応シてフミン酸石灰を生成して水和反応
の進行を阻害し、そのためにセメントが凝結硬化しない
のである。又、へとえ固化しても水に触れると溶解して
しまうと言った現象を起こすことになる。これはセメン
トペースト中のＯａ−ｒ＋の濃度を下げてしまうため３
０ ａＯＮ Ｓ ｉ Ｏ２が粒子表面よりＣａ＋＋を放
出しなくなる為である。Even if cement is added to the soil containing organic impurities and muddy water containing bentonite as described above to solidify and harden, the amine acid contained in the special soil and muddy water reacts with CaO in the cement paste to produce humic acid lime. This prevents the progress of the hydration reaction, which prevents the cement from setting and hardening. Also, even if it hardens, it will dissolve when it comes into contact with water. This is because it lowers the concentration of Oa-r+ in the cement paste.
This is because 0aON S i O2 no longer releases Ca++ from the particle surface.
本発明は従来不可能であった有機成分含有土壌、ベント
ナイト混入の泥水土壌をセメントにより凝結させる事の
できる土壊硬化剤を提供せんとするものである。The present invention aims to provide a soil failure hardening agent that can solidify organic component-containing soil and bentonite-containing muddy soil with cement, which was previously impossible.
本発明による土壌硬化剤は炭酸カリウム、炭酸ナトリウ
ムに硫酸ナトリウムを加え更にリグニンスルホン酸ナト
リウムを添加したことを特徴とするものである。The soil hardening agent according to the present invention is characterized by adding sodium sulfate to potassium carbonate and sodium carbonate, and further adding sodium ligninsulfonate.
従来無機質を多く含む土壌で処理後に大なる強度を必要
としない場合は、セメント、石灰を加えるだけで凝結硬
化させる事ができるが、有機不純物を多く含む土壌やベ
ントナイトを含む高含水比の土は固化する事ができなか
った。Conventionally, if the soil contains a lot of minerals and does not require great strength after treatment, it can be solidified and hardened by simply adding cement or lime, but soils that contain a lot of organic impurities or soil with a high water content containing bentonite can be hardened by simply adding cement or lime. It could not be solidified.
そこで本発明者が各種の実験を行ったところ本発明によ
りこれらの特殊土壌を凝結硬化させる事ができた。これ
は炭酸ナトリウム、炭酸カリウムにリグニンスルホン酸
ナトリウムが触媒として作用しセメントとの直接反応に
より被硬化物中の中に含まれている無機成分を中心骨材
として早急に強力に凝結硬化する為である。更に硫酸す
） ＩＪウムを加える事によりイオン反応が活発になり
粒子間結合が早くなり有機成分がセメントの凝結硬化を
妨害する事が少なくなり強度の強い凝固物を得る事が確
認された。Therefore, the present inventor conducted various experiments and was able to coagulate and harden these special soils using the present invention. This is because sodium lignin sulfonate acts as a catalyst on sodium carbonate and potassium carbonate, and through a direct reaction with cement, the inorganic components contained in the material to be hardened are quickly and strongly set and hardened using them as the central aggregate. be. Furthermore, it was confirmed that by adding IJ (sulfuric acid), the ionic reaction became active, the bonding between particles was accelerated, the organic components were less likely to interfere with the setting and hardening of the cement, and a strong coagulated product was obtained.
以下本発明の喚施例を示す。Examples of the present invention will be shown below.
実施例１゜
埼玉系川越泥水 １Ｍ３（含水比２００％以上）を凝結
硬化した例
セメント １００ｋｇ炭酸、’Ｊ
ＩＪ Ｏ” ６００ｇ〜７０１］り炭酸
ナトリウム ５００ｇ〜６００９リグニン
スルホン酸ナトリウム ３０ｇＮ５０ｇ硫酸ナトリウ
” ６０９〜５０り以上の成分よりなる
硬化剤により処理したどごろ７日間の一軸圧縮強度で７
に帷ｍ２〜１５認２の固化物を得る事ができた。尚上記
成分の量は上下限の範囲内で適当に選定すればよい。Example 1 Example of solidifying and hardening Saitama Kawagoe mud water 1M3 (water content 200% or more) Cement 100kg Carbonic acid, 'J
Sodium carbonate 500g~6009 Sodium lignin sulfonate 30gN50g Sodium sulfate 609~50
A solidified product with a thickness of m2 to 15 m2 was obtained. The amounts of the above components may be appropriately selected within the upper and lower limits.
Claims (1)
合し、更にリグニンスルホン酸ナトリウムを加えた事を
特徴とする土壊硬化剤。An earth destruction hardening agent characterized by mixing potassium carbonate, sodium carbonate and sodium sulfate, and further adding sodium ligninsulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084882A JPS58138777A (en) | 1982-02-12 | 1982-02-12 | Soil hardening agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084882A JPS58138777A (en) | 1982-02-12 | 1982-02-12 | Soil hardening agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58138777A true JPS58138777A (en) | 1983-08-17 |
Family
ID=12038500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2084882A Pending JPS58138777A (en) | 1982-02-12 | 1982-02-12 | Soil hardening agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58138777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009286655A (en) * | 2008-05-29 | 2009-12-10 | Takemoto Oil & Fat Co Ltd | Powdery premixed cement composition for foundation improvement |
| CN110467922A (en) * | 2019-07-12 | 2019-11-19 | 广东工业大学 | A kind of soil passivation modifying agent and its preparation method and application containing industrial lignin |
-
1982
- 1982-02-12 JP JP2084882A patent/JPS58138777A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009286655A (en) * | 2008-05-29 | 2009-12-10 | Takemoto Oil & Fat Co Ltd | Powdery premixed cement composition for foundation improvement |
| CN110467922A (en) * | 2019-07-12 | 2019-11-19 | 广东工业大学 | A kind of soil passivation modifying agent and its preparation method and application containing industrial lignin |
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