CN101921594A - Powdery soil solidifying agent for solidifying quasi-base courses and subbase courses - Google Patents

Powdery soil solidifying agent for solidifying quasi-base courses and subbase courses Download PDF

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Publication number
CN101921594A
CN101921594A CN2009100531847A CN200910053184A CN101921594A CN 101921594 A CN101921594 A CN 101921594A CN 2009100531847 A CN2009100531847 A CN 2009100531847A CN 200910053184 A CN200910053184 A CN 200910053184A CN 101921594 A CN101921594 A CN 101921594A
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soil
courses
subbase
solidifying
parts
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CN101921594B (en
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邝森栋
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Abstract

The invention relates to a soil body reinforced constructional material which can improve technical properties of soil and is used for solidifying multiple kinds of soil in civil engineering, in particular to a powdery soil solidifying agent for solidifying quasi-base courses and subbase courses in the solidification, pavement and foundational engineering on soft groundwork and the construction work on seabed groundwork. The powdery soil solidifying agent for solidifying the quasi-base courses and the subbase courses comprises the following components in part by weight: 27 to 42 parts of potassium chloride, 33 to 51 parts of sodium chloride, 30 to 48 parts of magnesium chloride, 3 to 12 parts of sodium sulfide, 15 to 27 parts of calcium chloride, and 1 to 8 parts of trimeric sodium phosphate. The powdery soil solidifying agent for solidifying the quasi-base courses and the subbase courses is suitable for the reinforcing solidification of surface soil bodies and deep soil bodies under various soil conditions, strengthens the strength, durability and economy of construction foundations, effectively solves the problems of sedimentation, breaking, slurry pouring and protuberating of road surfaces, which often appear in the conventional construction, prolongs the service life of roads, and reduces the costs for maintaining the roads.

Description

The powdery soil solidifying agent of a kind of curing sub-surface and subbase
Technical field
The present invention relates to a kind ofly to improve the soil technology performance, in order to the soil stabilization material of construction of the civil engineering work of solidifying all kinds of soil, especially relate to a kind of be used for to Soft Ground curing, mat formation, foundation works, the curing sub-surface of foundation of sea floor construction work and the powdery soil solidifying agent (all materials that can improve the soil technology performance are called soil-solidified-agent) of subbase.
Background technology
Continuous development along with society, all trades and professions engineering construction demand is also increasing, and traditional engineering construction needs a large amount of natural resourcess, fried mountain rubble, Wa He adopt sand, not only destroyed physical environment, and original sand, stone material can not satisfy growing engineering construction demand far away.In town road, the road construction of China are put into practice, generally adopt curing compound (cement class, lime class, cement and lime class, lime fly ash class etc.) to be stablized great soil group subbase, basic unit.Above-mentioned semi-rigid great soil group subbase, basic unit have the strength and stiffness that need, but also have some defectives, mainly show as:
(1) easily produces shrinkage crack.
Be exposed to the sun if there is not covering protection or health untimely, unavoidably to produce desciccation crack; The crack that the temperature that also may produce frost region contracts and drying shrinkage combines.
(2) influenced by environmental temperature.
Suffer multigelation, its intensity can descend.When being attended by the free water immersion, even can wreck.
(3) problem of environmental pollution
Lime, cement, flyash easily form harmful dust in construction process.Seeking more economical rational sub-surface and subbase course material, is one of problem of positive in the world at present broad research and practice.In rudimentary highway and no road surface highway usually be, road conditions are poor, dust is many, " fine ash all over the body, the rainy day is mud all over the body ", the labour intensity of maintenance and maintenance costs remain high.
If can in engineering construction, directly take most economical on the earth, engineering materials---the soil the most widely of originating; just can save the consumption of sand, stone greatly; then can be when guaranteeing that national project is built development need; also reduced destruction exploitation, natural ecological environment has been played the active protection effect natural resources.Therefore,, need that research and development are a kind of can save public resource badly, have the soil-solidified-agent of environmental-protection function again in line with the principle of Sustainable development and " innovation is autonomous, scientific development for energy saving, environment protection ".
Summary of the invention
Technical problem to be solved by this invention provides a kind of top layer that is applicable to various soil conditions, the deep layer soil body and newly-built and reconstruct the curing sub-surface of urban roads at different levels, highway, building lot and the powdery soil solidifying agent of subbase.The technical scheme that the present invention solves its technical problem employing is: the powdery soil solidifying agent of a kind of curing sub-surface and subbase, and component that it contains and parts by weight are:
Repone K 27~42
Sodium-chlor 33~51
Magnesium chloride 30~48
Sodium sulphite 3~12
Calcium chloride 15~27
With tripoly phosphate sodium STPP 1~8.
Technical problem to be solved by this invention also can further be solved by following technical solution: the model of Repone K is Potassium chloride; The model of sodium-chlor is sodium sulfate, anhydrous; The model of magnesium chloride is magnesium chloride; The model of sodium sulphite is sodiumsulfate, anhydrous; The model of calcium chloride is Calcium chloride; The model of tripoly phosphate sodium STPP is sodium tripolyphosphate.
Repone K among the present invention (KCl) energy binder soil soil particle constitutes reticulated structure in cured body, form early strength; Sodium-chlor (NaCl) has surfactivity effect and delayed coagulation, makes it easilier enter soil particle inside, thereby makes ion exchange reaction carry out rapidly, thoroughly, can also adjust time of lag of the present invention simultaneously; Magnesium chloride (MgCl2) can with clay mineral generation chemical reaction, remedy the deficiency of reticulated structure intensity, form later strength, thereby improve the consolidated earth mass final strength; When sodium sulphite (Na2SO4) suffered the water logging bubble for a long time when consolidated earth mass, itself and water can form a kind of balance material, thereby avoid the etch of water to consolidated earth mass, made with tying not argillization of the soil body, intensity stabilization; Calcium chloride (CaCl2) plays the effect that excites early strength; Tripoly phosphate sodium STPP (Na5P3010) can with other component reaction, the resultant volume of formation is increased, and separate out gel-like substance, fill the hole of consolidated earth mass inside, cause the consolidated earth mass volume to take place to a certain degree to expand, produce internal stress, thereby improved impervious, nonshrink, frost resistance and the fatigue performance that solidifies the soil body.The used each component material of the present invention all adopts the commercially available prod.The present invention is main formulated by inorganic salt, so can not pollute, can in seawater and fresh water, harden, and have high temperature resistant, the performance of corrosion of have good effect in acid alkali and durable.The present invention is a powdery, and its preparation method is evenly to stir.The present invention is owing to adopt technique scheme, solidify applicable to the top layer of various soil conditions, the reinforcing of the deep layer soil body, intensity, weather resistance, the economy of building lot have been strengthened, and traditional roadbed subsidence, the fracture that often faces, the difficult problems such as slurry, protuberance of falling of constructing of effective solution, prolong road work-ing life, reduced the Road maintenance cost.The Chinese government attaches great importance to the introduction exploitation of above-mentioned soil-solidified-agent, and " soil-solidified-agent introduction development and application " classified as one of 33 transport science and techonologies main projects drafting enforcement before 2010.Soil-solidified-agent is called one of greatest invention of 20th century by U.S.'s " Engineering News Record ", by the Japanese type material that is referred to as 21 century, is adopted as the preferred option of developing country's backroad laying of roadway by the World Bank.
Embodiment
Embodiment 1: potassium chloride 27Kg, sodium-chlor 51Kg, magnesium chloride 30Kg, sodium sulphite 12Kg, calcium chloride 15Kg and the even stirring of tripoly phosphate sodium STPP 8Kg can obtain the present invention.
Embodiment 2: potassium chloride 42Kg, sodium-chlor 33Kg, magnesium chloride 48Kg, sodium sulphite 3Kg, calcium chloride 27Kg and the even stirring of tripoly phosphate sodium STPP 1Kg can obtain the present invention.
Embodiment 3: potassium chloride 30Kg, sodium-chlor 47Kg, magnesium chloride 34Kg, sodium sulphite 10Kg, calcium chloride 18Kg and the even stirring of tripoly phosphate sodium STPP 3Kg can obtain the present invention.
Embodiment 4: potassium chloride 37Kg, sodium-chlor 37Kg, magnesium chloride 44Kg, sodium sulphite 5Kg, calcium chloride 24Kg and the even stirring of tripoly phosphate sodium STPP 6Kg can obtain the present invention.
Embodiment 5: potassium chloride 32Kg, sodium-chlor 37Kg, magnesium chloride 34Kg, sodium sulphite 7Kg, calcium chloride 20Kg and the even stirring of tripoly phosphate sodium STPP 4Kg can obtain the present invention.
Acid clay during embodiments of the invention 1,2 adapt to, embodiment 3,4,5 adapts to acid clay, mild clay, high liquid limit silty soil respectively.
The present invention is a powder-like product, and in the practice of construction, its curing compound can be at 1m 3Plain soil (be the solidified earth base-material, all can pulverizing or original loose soil all can be used as the solidified earth base-material) in add conventional cement (400#, 500#), the 0.08~0.1m of 100~160kg 3Water and the present invention of 1.5~2kg and evenly mix, can realize the reinforcing of class sub-surface and subbase is solidified.
Every performance index of the present invention all reach the city-building industry standard CJ/T3073-1998 of the People's Republic of China (PRC) " soil-solidified-agent ", People's Republic of China's industry standard " curing sub-surface and subbase technical regulation " CJJ/T 80-98 and People's Republic of China's house and town and country construction portion. the regulation among the industry standard CJJ1-2008 of the People's Republic of China (PRC) " town road engineering construction and inspection of quality standard ", the State Standard of the People's Republic of China GB 50202-2002 " building foundation engineering construction quality acceptance specification ".

Claims (7)

1. the powdery soil solidifying agent of curing sub-surface and subbase is characterized in that component and parts by weight that it contains are:
Repone K 27~42
Sodium-chlor 33~51
Magnesium chloride 30~48
Sodium sulphite 3~12
Calcium chloride 15~27
With tripoly phosphate sodium STPP 1~8.
2. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of Repone K is Potassium chloride.
3. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of sodium-chlor is sodium sulfate, anhydrous.
4. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of magnesium chloride is magnesium chloride.
5. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of sodium sulphite is sodium sulfate, anhydrous.
6. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of calcium chloride is Calcium chloride.
7. the powdery soil solidifying agent of a kind of curing sub-surface according to claim 1 and subbase is characterized in that: the model of tripoly phosphate sodium STPP is sodium tripolyphosphate.
CN 200910053184 2009-06-16 2009-06-16 Powdery soil solidifying agent for solidifying quasi-base courses and subbase courses Expired - Fee Related CN101921594B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103834413A (en) * 2014-03-24 2014-06-04 陈明德 Powdery soil curing agent for curing road base course and subbase course
CN104211315A (en) * 2014-08-19 2014-12-17 安徽红太阳新材料有限公司 Inorganic cemented soil modifier and application method thereof
CN106608722A (en) * 2015-10-26 2017-05-03 金哲 Technology for building and maintaining road through natural soil and curing agent
CN106968237A (en) * 2017-03-24 2017-07-21 广东省建筑科学研究院集团股份有限公司 A kind of semi-rigid sub-base material of utilization soil body solidification
CN107523313A (en) * 2017-09-24 2017-12-29 深圳市能迩环保科技实业发展有限公司 A kind of soil-solidified-agent and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005272510A (en) * 2004-03-23 2005-10-06 Taguchi Gijutsu Kenkyusho:Kk Soil solidification agent, method for solidifying soil, and solidified product of soil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005272510A (en) * 2004-03-23 2005-10-06 Taguchi Gijutsu Kenkyusho:Kk Soil solidification agent, method for solidifying soil, and solidified product of soil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103834413A (en) * 2014-03-24 2014-06-04 陈明德 Powdery soil curing agent for curing road base course and subbase course
CN104211315A (en) * 2014-08-19 2014-12-17 安徽红太阳新材料有限公司 Inorganic cemented soil modifier and application method thereof
CN106608722A (en) * 2015-10-26 2017-05-03 金哲 Technology for building and maintaining road through natural soil and curing agent
CN106968237A (en) * 2017-03-24 2017-07-21 广东省建筑科学研究院集团股份有限公司 A kind of semi-rigid sub-base material of utilization soil body solidification
CN107523313A (en) * 2017-09-24 2017-12-29 深圳市能迩环保科技实业发展有限公司 A kind of soil-solidified-agent and preparation method thereof

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