CN1648352A - R+H-soft soil strong effect curing agent - Google Patents
R+H-soft soil strong effect curing agent Download PDFInfo
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- CN1648352A CN1648352A CN 200410061430 CN200410061430A CN1648352A CN 1648352 A CN1648352 A CN 1648352A CN 200410061430 CN200410061430 CN 200410061430 CN 200410061430 A CN200410061430 A CN 200410061430A CN 1648352 A CN1648352 A CN 1648352A
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- soil
- weak soil
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- potent
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The powerful R+H- soft soil curing agent includes powder agent and liquid agent. The powdered powerful R+H- soft soil curing agent consists of compound strong acid-resin preparation 1-5 wt%, portland cement clicker 50-70 wt%, gypsum 5-15 wt%, lime 3-8 wt% and flyash 10-25 wt%; and is prepared through pulverizing material separately and mixing via stirring. The water solution consists of compound strong acid-resin preparation 1-5 wt%, active lime 4-6 wt% and water 89-95 wt%; and is prepared through mixing. The curing agent has powerful ion exchange effect, and can solve the problem of soft soil grains with adsorbed water. The present invention has the features of fast solidification, fast hardening, early strengthening, high strength and high curing effect on organic sludge with high water content, and is suitable for curing treatment of various kinds of soft soil and over wet soil.
Description
Technical field
The present invention relates to civil construction material field, is a kind of new material that solidifies weak soil
Background technology
1, preface
China's geological condition vast in territory is complicated and changeable, and wherein weak soil is widely distributed in China, gives highway, railway, and water conservancy, construction projects such as worker China Democratic National Construction Association bring bigger influence and hidden danger, become one of problem of engineering construction key.In engineering construction, the processing soft soil problem has been become the conspicuous contradiction that influences construction costs and engineering service property (quality), the key that addresses this problem, be on the basis of correct understanding weak soil character and harmfulness, in conjunction with engineering reality, choose reasonable processing method and curing materials make it satisfy the every requirement of engineering construction.
2, the definition of weak soil
Weak soil is the abbreviation of weak cohesive soil.It is the marine facies that form in the later stage in the Quaternary Period, lagoon facies, delta facies, a drowned valley deposit mutually and in the cohesive soil deposit of liminetic facies and the river, and what have belongs to deposit recently.Wherein the weakest is mud and mucky soil.The discriminating of weak soil is interdepartmental at home not to have unified standard.On the soil mechanics engineering conference of area, Asia, the 9th boundary, M.Kaman is defined as express highway roadbed weak soil in the ground general report: standard is passed through and is hit number less than 4, no side line compressive strength is less than 50KPa, water content is passed through greater than 50% cohesive soil and standard and is hit number less than 10, and water content is referred to as weak soil greater than 30% sandy soil.
3, weak soil character and the main cause that endangers engineering
Generally deposition forms weak soil in hydrostatic or slow flowing water environment.Soil is under the long term of water, and particle diminishes gradually, and surface area increases thereupon, and this change procedure depends on that mineralogical composition contained in the soil if you would take off stone, illite, kaolinic water absorption character.The effect of mineral makes clay particle surface form one deck adsorbed water.It is very firm that this layer adsorbed water combines with mineral grain under the effect of electrostatic attraction, forms the body of combining closely, gravity, less mechanical force (＜420kg/cm
2) it can not be got rid of.Also have a large amount of Free water in the weak soil, this water can exist on the contact between the soil particle, can flow freely.The forming process of weak soil has determined the natural moisture content height of weak soil, characteristic such as natural hole is big, shear strength is low, compression coefficient is high, transmission coefficient is little, rheology is big.Be not difficult to find out weak soil these to the disadvantageous characteristic of engineering all with the weak soil particle surface on adsorbed water confidential relation is arranged.Sand, rubble are well-known concrete admixtures, because it has enough intensity, also having an important factor is exactly not absorb water, and does not have adsorbed water on the particle surface.Therefore, we think that the adsorbed water in the weak soil particle is the main cause that causes endangering engineering.Having solved the adsorbed water problem of weak soil, just changed the engineering properties of weak soil, is the key issue of research weak soil based process.
4, the Positive and Negative Aspects of traditional curing materials
The processing method of weak soil is a lot, sums up and to get up can be divided into the processing method that chemical treatment, physical treatment and chemistry, physics combine.With curing materials weak soil being cured processing is a kind of chemical treatment method.Be used for changing the composition and the soil body engineering properties of weak soil, thereby reach the raising soil strength, improve the purpose of the compactibility of the soil body.Common employed curing materials has inorganic binders such as lime, cement in engineering.These traditional curing materials carry out compound effects by hydration reaction and soil particle, can play gelatification preferably, the ion and the soil particle ion that also can produce trace carry out the equivalent exchange, can play a role for smectite content and the lower general weak soil of water content.But it can not fundamentally solve the problem of adsorbed water in the weak soil particle, when smectite content and water content are higher, adsorbed water will occur and stop and solidify glued carrying out, and curing rate is slowed down, Separation of Solid and Liquid, even phenomenon appears can't realizing solidifying.Like this, will certainly increase the curing materials consumption, improve construction costs.
Summary of the invention
1, R
-H
+The raw material of the potent curing compound of weak soil is formed
R
-H
+The potent curing compound of weak soil divides two kinds in liquid and dry powder.
(1), R
-H
+The potent curing compound of weak soil (dry powder) is composed as follows:
The agent of compound strong resin: 1%～5%, Portland clinker: 50%～70%, gypsum: 5～15%, quicklime: 3%～8%, flyash: 10%～25%.Grinding is powdered respectively for above-mentioned material, again mixing and stirring.
(2), R
-H
+The potent curing compound of weak soil (liquid state) is composed as follows:
The agent of compound strong resin: 1%～5%, active lime: 4%～6%, water: 89%～95%
2, R
-H
+The principle of solidification of the potent curing compound of weak soil
R
-H
+The potent curing compound of weak soil is a kind of novel composite curing material, wherein: compound strong resin agent [(R
-SO
- 3H
+) wherein R represent the parent of resin ,-SO
- 3Be the fixed ion of active group, H
+Be active group, can write a Chinese character in simplified form into R
-H
+], have electrolysis and ion exchange, meet water power from going out a large amount of charged ions, wherein have the cation of hydrophobicity and the cation of clay mineral grain surface hydrophilicity and produce exchange, make and act on soil particle surface electrostatic gravitation originally and broken, the chemical bond of adsorbed water destroys and forms Free water, soil particle becomes hydrophobicity by original hydrophily, assemble mutually between the soil particle and form crumb structure comparatively closely, the surface no longer has water-wet behavior, and have the sand grain surface feature, for clinker provides the gelling condition.Portland clinker is the Free water generation hydration reaction in very fast and the weak soil after in admixing weak soil, generates multiple calcic hydrate, and the mineral in hydrate and the clay carry out chemical reaction, generate water-fast crystalline compounds gradually.These crystalline compounds have gelatification, combine with soil particle, are adhesive in around the soil particle, and form a large amount of fibrous crystal filling soil particle spaces, form net structure.Quicklime is met a large amount of heat of water generates, can absorb the moisture in the weak soil, and the alkaline environment of ion-exchange is provided simultaneously.Gypsum can absorb a large amount of moisture, can also play the effect that promotes that compound crystal expands, and makes it fill the soil particle space rapidly, can play the solidified earth densification.Flyash also can produce a spot of exchange ion, can play the intensity that strengthens solidified earth in the curing later stage.
3, R
-H
+The potent curing compound characteristics of weak soil
(1), R
-H
+The fast dewatering function of the core material resina in the potent curing compound of weak soil, can rapidly the adsorbed water of a large amount of weak soil particle surfaces be changed into the constitution water of hydrate, make cementitious material have no to carry out under the situation of resistance bonding, accelerated glued speed, strengthened between the soil particle compactness with crystal.Under the high situation of weak soil water content and smectite content, crystal grain sedimentation, i.e. Separation of Solid and Liquid before can avoiding condensing.The high organic silt of water content, mud there is good solidification effect.
(2), R
-H
+Clinker, quicklime, gypsum in the potent curing compound of weak soil all have stronger water absorption character.Gypsum can promote the expansion of compound crystal, the characteristic that quicklime has volume to increase, the connection that helps improving the density of soil structure and strengthen soil particle.Solidified earth is had fast coagulate, fast hard, early strong, high-strength characteristics.
(3), R
-H
+The raw material of the potent curing compound of weak soil; Compound strong resin agent (dry powder and liquid) is produced by wealth science and trade company in the Wuhan, and market is on sale.Other material can directly be buied from market, and can utilize cheap gypsum, quicklime, flyash, thereby cost is reduced greatly.It is simple to produce the curing compound equipment and technology, implements easily.
4, the scope of application
R
-H
+The potent curing compound of weak soil is a kind of composite soil curing materials, the consolidation process that be applicable to general cohesive soil, cross wet cohesive soil, various weak soil comprises mud, mucky soil.Can be as the admixture of shallow layer soft soil, over-wet soil consolidation process; The cementing material of the cement earth pile of high-pressure rotary jet grouting pile, deep-mixed pile and other type.In the weak soil consolidation, utilize traditional method static pressure in weak soil to inject R
-H
+The potent curing compound of weak soil (liquid) by the effect of ion-exchange, can be accelerated drainage speed, can shorten the construction period greatly.
Embodiment
1, manufacture craft and production equipment
The shape of earlier above-mentioned raw material being clayed into power respectively gets final product by the ratio mixing and stirring of filling a prescription again.The common breeze ball mill of equipment choosing.
2, solidity test
Test adopts the method for performance comparison to carry out.With R
-H
+The potent curing compound of weak soil, 42.5 portland cements are to being cured test with a kind of mud.Test original soil soil sample is selected the organic silt of Wuhan Dongxihu District for use, and natural moisture content is 145%.Preparation method of sample is: by the test plan of working out, according to ratio respectively with R
-H
+The potent curing compound of weak soil, 42.5 portland cements and silt soil stir, quantity by half is respectively charged in 7cm * 7cm * 7cm die trial, is placed on vibroplatform vibration one minute, refills second half vibration one minute, then the die trial surface is wipeed off, cover Polypropylence Sheet and prevent water evaporates.Die trial is moved to the fog room maintenance, and observe coagulated state.The demoulding two days later continues maintenance to official hour, detects the unconfined compression strength of firming body, and its result is as showing:
The curing performance contrast table
| Sequence number | The curing materials title | Curing materials is mixed % (in the mud quality) | Test block min time of setting | Unconfined compression strength MPa | ||
| Initial set | Final set | ????7d | ????28d | |||
| ??1 | 42.5 portland cement | ??15 | Separation of Solid and Liquid appears in test block in the test, can't implement to solidify | |||
| ??2 | 42.5 portland cement | ??20 | ????180 | ????420 | ????1.2 | ????2.1 |
| ??3 | ?R -H +The potent curing compound of weak soil | ??15 | ????20 | ????90 | ????3.8 | ????4.7 |
Claims (4)
1.R
-H
+The potent curing compound of weak soil is a kind of new material that solidifies weak soil, it is characterized in that: divide two kinds of dry powder and liquid.
(1), R
-H
+The potent curing compound of weak soil (dry powder) is formed:
The agent of compound strong resin: 1%～5%, Portland clinker: 50%～70%, gypsum: 5%～15%, quicklime: 3%～8%, flyash: 10%～25%.Grinding is powdered respectively for above-mentioned material, again mixing and stirring.
(2), R
-H
+The potent curing compound of weak soil (liquid) is formed:
The agent of compound strong resin: 1%～5%, active lime: 4%～6%, water: 89%～95%
2. R as claimed in claim 1
-H
+The potent curing compound of weak soil is characterized in that: the shape of earlier above-mentioned raw material being clayed into power respectively, the ratio mixing and stirring in prescription gets final product again.The common breeze ball mill of equipment choosing.
3. as claim 1,2 described R
-H
+The potent curing compound of weak soil is characterized in that: R
-H
+The potent curing compound of weak soil is a kind of composite soil curing materials, the consolidation process that be applicable to general cohesive soil, cross wet cohesive soil, various weak soil comprises mud, mucky soil.Can be used as the admixture of shallow layer soft soil, over-wet soil consolidation process; The cementing material of the cement earth pile of high-pressure rotary jet grouting pile, deep-mixed pile and other type.In the weak soil consolidation, utilize traditional method static pressure in weak soil to inject R
-H
+The potent curing compound of weak soil (liquid) by the effect of ion-exchange, can be accelerated drainage speed, can shorten the construction period greatly.
4. as claim 1, described R
-H
+The potent curing compound of weak soil is characterized in that: compound strong resin agent (dry powder and liquid) is produced by wealth science and trade company in the Wuhan, and market is on sale.Other material can directly be buied from market.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061430 CN1288223C (en) | 2004-12-27 | 2004-12-27 | R+H-soft soil strong effect curing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061430 CN1288223C (en) | 2004-12-27 | 2004-12-27 | R+H-soft soil strong effect curing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648352A true CN1648352A (en) | 2005-08-03 |
| CN1288223C CN1288223C (en) | 2006-12-06 |
Family
ID=34868831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410061430 Expired - Fee Related CN1288223C (en) | 2004-12-27 | 2004-12-27 | R+H-soft soil strong effect curing agent |
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| Country | Link |
|---|---|
| CN (1) | CN1288223C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933696A (en) * | 2014-03-19 | 2014-07-23 | 上海鼓华生态科技有限公司 | Curing agent for curing and stabilization of poisonous and harmful solid waste |
| CN104310933A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Sandy-spoil-based C30 slope-protection brick mixture ratio and preparation method of slope-protection brick |
| CN104310934A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Formula and preparation method of C20 ballast block based on sandy waste soil |
| CN105236908A (en) * | 2015-10-22 | 2016-01-13 | 浙江大学宁波理工学院 | Soft soil curing agent prepared by means of industrial residues |
| CN105557110A (en) * | 2015-12-14 | 2016-05-11 | 安徽省中日农业环保科技有限公司 | Hybrid rice pest and disease prevention planting technology |
| CN108086295A (en) * | 2016-11-22 | 2018-05-29 | 中洁惠能科技（北京）有限公司 | A kind of shallow layer soft ground clay solidifying technique and system |
| CN110204241A (en) * | 2019-05-10 | 2019-09-06 | 姜朔 | A kind of weak soil filling material composite water-reducing additive and preparation method thereof |
-
2004
- 2004-12-27 CN CN 200410061430 patent/CN1288223C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933696A (en) * | 2014-03-19 | 2014-07-23 | 上海鼓华生态科技有限公司 | Curing agent for curing and stabilization of poisonous and harmful solid waste |
| CN104310933A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Sandy-spoil-based C30 slope-protection brick mixture ratio and preparation method of slope-protection brick |
| CN104310934A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Formula and preparation method of C20 ballast block based on sandy waste soil |
| CN105236908A (en) * | 2015-10-22 | 2016-01-13 | 浙江大学宁波理工学院 | Soft soil curing agent prepared by means of industrial residues |
| CN105557110A (en) * | 2015-12-14 | 2016-05-11 | 安徽省中日农业环保科技有限公司 | Hybrid rice pest and disease prevention planting technology |
| CN108086295A (en) * | 2016-11-22 | 2018-05-29 | 中洁惠能科技（北京）有限公司 | A kind of shallow layer soft ground clay solidifying technique and system |
| CN110204241A (en) * | 2019-05-10 | 2019-09-06 | 姜朔 | A kind of weak soil filling material composite water-reducing additive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1288223C (en) | 2006-12-06 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 430023 No. 10, No. 23, 2-301 village, evergreen garden, Hubei, Wuhan Patentee after: Chen Yongfeng Address before: 430023 No. 31, No. 17, 2-402 village, evergreen garden, Hubei, Wuhan Patentee before: Chen Yongfeng |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |