CN104478397B - Hypertonicity slurries with no pressure and compound method thereof - Google Patents
Hypertonicity slurries with no pressure and compound method thereof Download PDFInfo
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- CN104478397B CN104478397B CN201410812993.2A CN201410812993A CN104478397B CN 104478397 B CN104478397 B CN 104478397B CN 201410812993 A CN201410812993 A CN 201410812993A CN 104478397 B CN104478397 B CN 104478397B
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Abstract
The invention discloses a kind of hypertonicity slurries with no pressure, relate to construction technology in geotechnical engineering field, its component comprises water, jelling agent and additive, jelling agent comprises potash water glass and silicic acid sol, additive comprises lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, the compound method of these hypertonicity slurries with no pressure is: by silicic acid sol, lithium metasilicate and sodium laurylsulfonate join successively in the potash water glass solution prepared and stir evenly, and then add the tripolyphosphate silicon suspension liquid prepared successively, methyl siliconic acid potassium solution and ultraviolet radiation absorption agent emulsion, stir.These hypertonicity slurries with no pressure are colloidal state, viscosity is low, diffusion performance in sandy soil is good, there is good weathering resistance and erosion resistibility, the chiltern side slope of wherethrough reason has good water retention property and stability, starting material are ep-type material, environmentally safe simultaneously, and can be used as Fertilizer application.
Description
Technical field
The present invention relates to construction technology in geotechnical engineering field.
Background technology
In the fields such as highway, railway, water conservancy and mine engineering, chiltern side slope protection generally adopts the technological method such as combined bolting and shotcrete and alien earth sparging plant grass and protect.Because chiltern slope soil is loose, cohesion is low, in combined bolting and shotcrete, anchor pole (anchoring pile) difficulty of construction is large, spray blast during sprayed concrete easily the domatic soil body to be dispelled, affect jeting effect, and whole safeguard system needs to complete (or local complete) and bricklaying concrete strength just possesses protective capacities after acquiring a certain degree in construction.Alien earth sparging plant grass and protect is after the soil prepared and vegetation seed of one's native land and the soil stabilizer prevented erosion, tamanori, water-holding agent etc. being admixed, mix thoroughly through stirrer, in siccative state air compressor machine and shotcrete machine conveying, before jet orifice with water mixing jetting to domatic, form the base material that can promote needed for plant long term growth.Spray in this technology same that blast is also easy to be dispelled the domatic soil body, affect jeting effect.Therefore, the chiltern side slope protection technology of these routines all can be destroyed domatic at construction process, affects jeting effect, and plays before function at protection system, and rainfall can cause chiltern side slope to be subject to washing away, corrodes or damaging in various degree, needs to repair.
In order to improve the protection effect of chiltern side slope, needing to carry out the solidification of side slope top layer, namely forming (or closed covering) at side slope top layer (15 ~ 30cm) and there is protective layer that is weather-proof, water erosion ability.The method of solidification mainly contains:
(1) the grout curing method of sodium silicate: consider from perviousness, generally speaking, the penetrating power of low modulus (≤2.85) sodium silicate slurries is comparatively strong, and the water glass penetrating power of high-module is weak.The acid solution (sulfuric acid, acetic acid) that acidic water glass slurries are a large amount of because starting material adopt, could bring impact to surrounding enviroment undoubtedly, or even destroys! Especially sulfuric acid; By product-sodium salt simultaneously after curing reaction has adverse influence to periphery plant-growth, causes Plant death.In addition, acidic water glass sand gelling induration only has certain intensity when suitable water content ranges, when exposed in atmospheric environment time, easily fast dehydration, efflorescence.Alkaline water glass induration poor water resistance, defeated and dispersed immediately after meeting water.No matter acid or alkaline sodium silicate slurries, concretion body strength is all lower.
The stable of aeolian sand or Extra-fine sand side slope all needs the bonding course on side slope top layer to possess antiscour (water erosion) and weathering resistance (wind erosion) ability simultaneously.The induration that obvious existing water glass slurries are formed can not possess above-mentioned two kinds of abilities simultaneously, can not apply in slope reinforcement.
(2) the grout curing method of resene: adopt the resene slurries that all kinds resin (epoxy resin and polyamide-based resin) are made, the strength ratio of reinforcing body is higher.Because the viscosity ratio of slurries is higher, time under passive state to Extra-fine sand and aeolian sand solidification, side slope spraying rear slurry can be dirty along side slope, only can form one deck rete on side slope surface, poor to the protection effect of side slope, can not use as the reinforcement material of side slope.Therefore, due to the impact by problems such as the intensity of the penetrating power of grouting serous fluid and back-up coat, water tolerance and Resistance to wind Erosion, then good solidified protection can not be played to chiltern side slope surface.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly makes simple, environmental protection and public nuisance free, can make the domatic antiscour of process and the good hypertonicity slurries with no pressure of weathering resistance performance and compound method thereof, is particularly useful for the solidification of chiltern side slope surface.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of hypertonicity slurries with no pressure, be made up of water, jelling agent and additive, described jelling agent is potash water glass and silicic acid sol, described additive is lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, and wherein the parts by weight proportioning of each component is as follows:
Water: 65 ~ 88.5 parts;
Jelling agent: potash water glass 10 ~ 25 parts, silicic acid sol 0.5 ~ 5 part;
Additive: lithium metasilicate 0.1 ~ 0.5 part, sodium laurylsulfonate 0.01 ~ 0.05 part, potassium methyl silicate 0.01 ~ 0.1 part, tripolyphosphate silicon 0.3 ~ 5 part, UV light absorber 0.01 ~ 0.05 part;
The modulus of above-mentioned potash water glass is 3.0 ~ 3.5.
Preferably, described tripolyphosphate silicon adopts fineness to be 1200 object solids.
The present invention also provides the compound method of above-mentioned hypertonicity slurries with no pressure, comprises the following steps:
(1) potash water glass solution is prepared:
Potash water glass is diluted with water to potash water glass solution, in potash water glass solution, adds silicic acid sol, lithium metasilicate and sodium laurylsulfonate successively, then fully stir;
(2) tripolyphosphate silicon suspension liquid is prepared: tripolyphosphate silicon is diluted with water to suspension liquid, fully stirs;
(3) tripolyphosphate silicon suspension liquid is added in the potash water glass solution prepared in step (1) and make slurries, fully stir;
(4) methyl siliconic acid potassium solution is prepared: potassium methyl silicate is diluted with water to methyl siliconic acid potassium solution;
(5) methyl siliconic acid potassium solution is joined in the slurries prepared in step (3), fully stir;
(6) ultraviolet radiation absorption agent emulsion is prepared: UV light absorber is diluted with water to ultraviolet radiation absorption agent emulsion, fully stirs;
(7) ultraviolet radiation absorption agent emulsion is joined in the slurries prepared in step (5), fully stir, for subsequent use.
The beneficial effect adopting technique scheme to produce is: the hypertonicity slurries with no pressure be made up of potash water glass, silicic acid sol, lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, in colloidal state, viscosity is low, diffusion performance in sandy soil is good, the sand cured layer intensity formed after curing reaction is high, thickness large, has good weathering resistance performance; The reinforcing body water resistance formed after curing reaction is good, has good erosion resistibility; There is certain thickness flexible pervious course below cured layer simultaneously, when after hypertonicity slurry infiltration to sand body with no pressure, along with evaporation and the infiltration of moisture, hole is formed in cured layer, decrease the solidification pervious course cracking because the temperature difference causes to a great extent, thus cured layer has good weathering resistance.Therefore, these hypertonicity slurries with no pressure can make chiltern side slope have good water retention property, improve its stability, and its starting material are ep-type material, environmentally safe simultaneously, and can be used as Fertilizer application.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
A kind of hypertonicity slurries with no pressure, be made up of water, jelling agent and additive, described jelling agent is potash water glass and silicic acid sol, described additive is lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, and wherein the parts by weight proportioning of each component is as follows:
Water: 65 ~ 88.5 parts;
Jelling agent: potash water glass 10 ~ 25 parts, silicic acid sol 0.5 ~ 5 part;
Additive: lithium metasilicate 0.1 ~ 0.5 part, sodium laurylsulfonate 0.01 ~ 0.05 part, potassium methyl silicate 0.01 ~ 0.1 part, tripolyphosphate silicon 0.3 ~ 5 part, UV light absorber 0.01 ~ 0.05 part.
Wherein, the modulus of potash water glass is 3.0 ~ 3.5, and tripolyphosphate silicon adopts fineness to be 1200 object solids.
The preparation steps of above-mentioned hypertonicity slurries with no pressure is as follows:
(1) potash water glass solution is prepared:
Potash water glass being diluted to content is potash water glass solution, adds silicic acid sol, lithium metasilicate and sodium laurylsulfonate successively, then fully stir in potash water glass solution;
(2) tripolyphosphate silicon suspension liquid is prepared: tripolyphosphate silicon is diluted with water to suspension liquid, fully stirs, churning time is 3min;
(3) added by tripolyphosphate silicon suspension liquid in the potash water glass solution prepared in step (1) and make slurries, fully stir, churning time is 5min;
(4) methyl siliconic acid potassium solution is prepared: potassium methyl silicate is diluted with water to methyl siliconic acid potassium solution;
(5) joined by methyl siliconic acid potassium solution in the slurries prepared in step (3), stirring churning time is 3min;
(6) ultraviolet radiation absorption agent emulsion is prepared: UV light absorber is diluted with water to ultraviolet radiation absorption agent emulsion, fully stirs, churning time is 3min;
(7) joined by ultraviolet radiation absorption agent emulsion in the slurries configured in step (5), fully stir, churning time is 3 ~ 5min, for subsequent use.
Potash water glass can select liquid state or Instant in step (1), and when adopting liquid potassium water glass preparation potash water glass solution, churning time is 5min; When adopting Instant potash water glass preparation potash water glass solution, churning time is 20min, ensures that potash water glass fully dissolves.
The hypertonicity slurries with no pressure set time in water longer (>=24h) prepared, in atmosphere set time short (presetting period is about 2h, and final setting time is about 6h).This hypertonicity slurry material with no pressure has film effect, and solidification, first from surface, along with time lapse and moisture evaporation, is inwardly solidified gradually.When after domatic spraying slurries, can play a role very soon, even if the chiltern side slope of just having constructed runs into rainfall, also can not occur by rain drop erosion, damage.By regulating the modulus of potash water glass and the consumption of hypertonicity slurries with no pressure, adjust intensity and the thickness of cured layer.
The hypertonicity slurries with no pressure be made up of potash water glass, silicic acid sol, lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, in colloidal state, viscosity is low, diffusion performance in sandy soil is good, under natural passive state, its depth of penetration can reach 15 ~ 35cm; Silicic acid sol, lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber all belong to weather resistant solidifying agent, the high (R of sand cured layer intensity formed after curing reaction
28=1.5 ~ 11.5MPa), thickness is large, has good weathering resistance performance; The reinforcing body water resistance formed after curing reaction is good, has good erosion resistibility; There is certain thickness flexible pervious course below cured layer simultaneously, when after hypertonicity slurry infiltration to sand body with no pressure, along with evaporation and the infiltration of moisture, hole is formed in cured layer, decrease the solidification pervious course cracking because the temperature difference causes to a great extent, thus cured layer has good weathering resistance.
The specific embodiment of hypertonicity slurries with no pressure is as shown in the table:
Note: in upper table, whitewashing amount is for Con trolling index with the consumption of potash water glass.
As shown in the table to domatic performance of spraying after solidification according to the hypertonicity slurries with no pressure of data preparation in upper table:
In sum, hypertonicity slurries with no pressure of the present invention can make chiltern side slope have good water retention property, improve its stability, its starting material are inorganics simultaneously, belong to ep-type material, environmentally safe, and can be used as Fertilizer application, can not pollute surrounding environment, there is environmental protection, non-harmful feature; And construction technology is simple, the prices of raw and semifnished materials are moderate, cost be concrete facing wall, churning anchoring cost 30 ~ 50%, 70 ~ 80% of Seed spraying technology cost.
Claims (3)
1. hypertonicity slurries with no pressure, it is characterized in that: be made up of water, jelling agent and additive, described jelling agent is potash water glass and silicic acid sol, described additive is lithium metasilicate, sodium laurylsulfonate, potassium methyl silicate, tripolyphosphate silicon and UV light absorber, and wherein the parts by weight proportioning of each component is as follows:
Water: 65 ~ 88.5 parts;
Jelling agent: potash water glass 10 ~ 25 parts, silicic acid sol 0.5 ~ 5 part;
Additive: lithium metasilicate 0.1 ~ 0.5 part, sodium laurylsulfonate 0.01 ~ 0.05 part, potassium methyl silicate 0.01 ~ 0.1 part, tripolyphosphate silicon 0.3 ~ 5 part, UV light absorber 0.01 ~ 0.05 part;
The modulus of above-mentioned potash water glass is 3.0 ~ 3.5.
2. hypertonicity slurries with no pressure according to claim 1, is characterized in that: tripolyphosphate silicon adopts fineness to be 1200 object solids.
3. the compound method of hypertonicity slurries with no pressure as claimed in claim 1, comprises the following steps:
(1) potash water glass solution is prepared:
Potash water glass is diluted with water to potash water glass solution, in potash water glass solution, adds silicic acid sol, lithium metasilicate and sodium laurylsulfonate successively, then fully stir;
(2) tripolyphosphate silicon suspension liquid is prepared: tripolyphosphate silicon is diluted with water to suspension liquid, fully stirs;
(3) tripolyphosphate silicon suspension liquid is added in the potash water glass solution prepared in step (1) and make slurries, fully stir;
(4) methyl siliconic acid potassium solution is prepared: potassium methyl silicate is diluted with water to methyl siliconic acid potassium solution;
(5) methyl siliconic acid potassium solution is joined in the slurries prepared in step (3), fully stir;
(6) ultraviolet radiation absorption agent emulsion is prepared: UV light absorber is diluted with water to ultraviolet radiation absorption agent emulsion, fully stirs;
(7) ultraviolet radiation absorption agent emulsion is joined in the slurries prepared in step (5), fully stir, for subsequent use.
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| CN108822725A (en) * | 2018-06-26 | 2018-11-16 | 卓荣茂 | A kind of granite Wet-dry waterproofing agent |
| CN116199490A (en) * | 2023-02-08 | 2023-06-02 | 山东大学 | Silicon-based grouting material suitable for dense and weak stratum reinforcement and impermeability treatment and preparation method thereof |
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| CN102718462B (en) * | 2012-07-09 | 2013-11-06 | 杭州国电大坝安全工程有限公司 | Chemical grouting material for reinforcing loose and broken bedrock |
| CN102757213B (en) * | 2012-07-26 | 2013-11-06 | 石家庄铁道大学 | Method for preparing side slope grouting slurry for widening silty-fine sand embankment |
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