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A soft soil curing agent

A technology of curing agent and soft soil, applied in the field of civil construction materials, can solve the problems of high resource consumption, soil erosion, deterioration, etc., achieve good economy and environmental protection, improve the overall bearing capacity, and enhance the effect of stability

Active Publication Date: 2022-08-05
HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The rapid development of the cement industry has brought environmental problems that cannot be ignored. The process of cement production will produce pollution problems of varying degrees, and the energy and resources required for cutting mountains and rocks are huge, which will cause soil erosion and ecological imbalance, which in turn will aggravate natural pollution. Environmental degradation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The soft soil curing agent of the present invention is prepared from 30% of slag powder, 25% of industrial by-product plaster of paris, 11.95% of zeolite powder, 20% of calcium carbide slag, 10% of fly ash, 3% of superabsorbent resin and 0.05% of sodium citrate made;

[0043] During preparation, firstly add slag powder, industrial by-product plaster of paris, zeolite powder, fly ash, super absorbent resin and sodium citrate into the mixer in turn, mix at a high speed for 30 min at a speed of 1500r / min, and finally add calcium carbide slag, Continue to stir and mix for 20 min, then store in a sealed bag.

[0044] The prepared finished soft soil solidifying agent was mixed into the soil according to a certain proportion of the soil dry weight, and then 65% of the soil dry weight water was added, stirred evenly, and put into the mold, and the mold was released after natural curing for 1 d, and the obtained sample was put into the mold. Put it in a plastic sealed bag, put ...

Embodiment 2

[0046] The soft soil curing agent of the invention is prepared by 40% of slag powder, 20% of industrial by-product desulfurization gypsum, 15% of zeolite powder, 11.95% of calcium carbide slag, 8% of fly ash, 5% of super absorbent resin and 0.05% of sodium citrate made;

[0047] The preparation method is the same as in Example 1.

[0048] The prepared finished soft soil curing agent is mixed into the soil according to a certain proportion of the dry weight of the soil, and water of 65% of the dry weight of the soil is added, stirred evenly, and put into the mold. In a sealed bag, placed in a standard curing room for curing, curing to the required age, and measuring the unconfined compressive strength for 7d and 28d. The test results are shown in Table 7 below.

Embodiment 3

[0050]The soft soil solidifying agent of the invention is prepared from 35% of slag powder, 20% of industrial by-product phosphogypsum, 11.99% of zeolite powder, 15% of calcium carbide slag, 15% of fly ash, 3% of superabsorbent resin and 0.01% of tartaric acid ;

[0051] The preparation method is the same as in Example 1.

[0052] The prepared finished soft soil curing agent is mixed into the soil according to a certain proportion of the dry weight of the soil, and water of 65% of the dry weight of the soil is added, stirred evenly, and put into the mold. In a sealed bag, placed in a standard curing room for curing, curing to the required age, and measuring the unconfined compressive strength for 7d and 28d. The test results are shown in Table 7 below.

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Abstract

The invention discloses a soft soil curing agent, which is prepared from raw material slag powder, industrial by-product plaster of paris, zeolite powder, calcium carbide slag, fly ash, super absorbent resin, and a coagulant according to the following mass percentages: slag Powder 30-40%; industrial by-product plaster of paris 15-25%; zeolite powder 10-15%; calcium carbide slag 10-30%; fly ash 5-15%; superabsorbent resin 1-5%; coagulant 0.01 ~0.2%. The soft soil solidifying agent with industrial waste residue as the main component prepared by the invention can be used for the treatment of soft soil instead of cement, and has outstanding advantages such as calcination-free, energy saving and environmental protection, and at the same time, it has obvious price advantage compared with cement, and is fly ash, calcium carbide slag, etc. , industrial by-product gypsum and other resource utilization has played a positive role in promoting, has extensive and far-reaching significance.

Description

technical field [0001] The invention relates to the field of civil construction materials, in particular to a soft soil curing agent. Background technique [0002] Soft soil generally refers to the cohesive soil in the state of soft plastic and fluid plastic, with high natural water content, large natural void ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, high sensitivity, It has the characteristics of large disturbance, poor water permeability, complex layered distribution of soil layers, and large differences in physical and mechanical properties between layers. Soft soil is a general term for a type of soil, not a specific soil. In engineering, soft soil is often subdivided into soft cohesive soil, silt soil, silt, peat soil and peat. [0003] Under the action of external load, the soft soil foundation will produce large settlement and uneven deformation, so it is necessary to solidify the soft soil, change the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/142C04B2111/00732C04B2201/50C04B18/141C04B18/0481C04B18/08C04B14/042C04B24/24C04B24/06
Inventor 王笑风杨博张晓果万晨光赵亚婷刘建飞侯明业
Owner HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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