Swelling soil modifier

A technology of expansive soil and improver, applied in soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of lack of good solutions, prolong construction time, cost engineering costs, etc., and achieve changes in chemical properties and physical properties. , The effect of reducing roadbed damage, reducing plastic limit and liquid limit

A technology of expansive soil and improver, applied in soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of lack of good solutions, prolong construction time, cost engineering costs, etc., and achieve changes in chemical properties and physical properties. , The effect of reducing roadbed damage, reducing plastic limit and liquid limit

CN102079980AInactive Publication Date: 2011-06-01钟维安 +2
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  • Swelling soil modifier
  • Swelling soil modifier
  • Swelling soil modifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Get 45 kilograms of dodecylbenzenesulfonic acid, 6 kilograms of fatty acid alkanolamides, 3 kilograms of fatty alcohol polyoxyethylene ether sodium sulfates, 8 kilograms of 2-hydroxypropane-1.2.3-tricarboxylic acids and 38 kilograms of water make 1 Expansive soil stabilizer No. is suitable for stronger expansive soil.

[0022] Get 25 kilograms of polyvinyl alcohol, 4 kilograms of polyvinylpyrrolidone, 2 kilograms of hydroxyethyl cellulose, 5 kilograms of polyethylene glycols, 4 kilograms of hydroxypropyl methylcellulose and 60 kilograms of water make No. 1 expansive soil curing agent.

[0023] Take 1 kg of No. 1 expansive soil stabilizer and add 100 to 200 kg of water to dilute it, then spray it on the excavated 20 cm thick road surface, stir evenly, wait for 3 to 4 hours, and then spray No. 1 expansive soil curing agent 10 The ratio of expansive soil curing agent to water is about 5 to 7 times that of expansive soil curing agent, and the amount of water used depends on...

Embodiment 2

[0025] Get 35 kilograms of dodecylbenzenesulfonic acid, 5 kilograms of fatty acid alkanolamide sodium sulfate of fatty alcohol polyoxyethylene ether, 5 kilograms of 2-hydroxypropane-1.2.3-tricarboxylic acid and 53 kilograms of water make No. 2 Expansive soil stabilizer.

[0026] Get 18 kg of polyvinyl alcohol, 2 kg of polyvinylpyrrolidone, 3 kg of hydroxyethyl cellulose, 6 kg of polyethylene glycol, 1 kg of hydroxypropyl methyl cellulose and 70 kg of water to make No. 2 expansive soil curing agent. Suitable for weak expansive soils.

[0027] Take 1 kg of No. 2 expansive soil stabilizer and add 100 to 200 kg of water to dilute it, then spray it on the excavated 20 cm thick road surface, stir evenly, wait for 3 to 4 hours, and then spray No. 2 expansive soil curing agent 10 The ratio of expansive soil curing agent to water is about 5 to 7 times that of expansive soil curing agent, and the amount of water used depends on the water content of the subgrade soil at that time. Howe...

Embodiment 3

[0029] Get 44 kilograms of dodecylbenzenesulfonic acid, 10 kilograms of fatty acid alkanolamides, 6 kilograms of fatty alcohol polyoxyethylene ether sodium sulfates, 10 kilograms of 2-hydroxypropane-1.2.3-tricarboxylic acids and 30 kilograms of water make 3 No. expansive soil stabilizer.

[0030] Take 17 kg of polyvinyl alcohol, 3.5 kg of polyvinylpyrrolidone, 6 kg of hydroxyethyl cellulose, 10 kg of polyethylene glycol, 3.5 kg of hydroxypropyl methyl cellulose and 60 kg of water to make No. 3 expansive soil curing agent in weak expansive soils.

[0031] Take 1 kg of No. 3 expansive soil stabilizer and add 100 to 200 kg of water to dilute it, then spray it on the excavated 20 cm thick road surface, stir evenly, wait for 3 to 4 hours, and then spray No. 3 expansive soil curing agent 10 The ratio of expansive soil curing agent to water is about 5 to 7 times that of expansive soil curing agent, and the amount of water used depends on the water content of the subgrade soil at tha...

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Abstract

The invention relates to a material for regulating and improving the soil structure, soil compactness, and soil chemical properties and physical properties of a swelling soil roadbed. The technical scheme is that: a swelling soil stabilizer comprising a main component of dodecylbenzene sulfonic acid and a swelling soil firming agent comprising a main component of polyvinyl alcohol are combined to improve the chemical and physical properties of swelling soil. The swelling soil stabilizer regulates the components and molecular structure of the swelling soil so as to improve the structure, compactness and expansion and shrinkage performance of the swelling soil, and recombine the structure of the swelling soil; the firming agent is used to firm swelling-shrinking soil, reduce the swelling ratio, improve bearing capacity and reduce construction cost so as to reasonably use human, financial and material resources, and the aim that civil engineering including road engineering is durable is fulfilled; and after being rolled, the soil can be compressed to achieve high compactness, reduce an osmotic coefficient and improve soil consolidation capacity, so that the damage of water to the roadbed is reduced and the frost boiling phenomenon of the roadbed is effectively prevented.

Description

(1) Technical field [0001] The invention relates to an adjusting material for adjusting and improving the soil structure, soil compactness, soil chemical properties and physical properties of the expansive soil road foundation. (2) Background technology [0002] Expansive soil is a geological body with many cracks and significant expansion and contraction formed in the natural geological process. The clay component is mainly composed of hydrophilic clay minerals (mainly montmorillonite and illite). It has the characteristics of water absorption expansion, water loss shrinkage and repeated deformation. When the temperature and humidity of the environment change, the building Objects, especially light buildings, roadbeds, airports, canal slopes, and dams, etc., have serious damage effects, especially the deformation and damage to buildings often have long-term potential dangers. [0003] The clay content in the particle size composition of expansive soil is high, generally mo...

Claims

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Application Information

Patent Timeline
01 Jun 2011
Publication
CN102079980A
IPC
C09K17/42; C09K103/00
Inventors
张信贵; 熊德元