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Soft soil hardening agent for sea area environment

A technology of hardener and soft soil, applied in the field of soft soil hardener, can solve the problems of cracking and high alkalinity, achieve the effects of low energy consumption, simple production process and reduced engineering economic cost

Pending Publication Date: 2021-12-03
北京安科兴业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The calcium-silicon-aluminum three-phase inorganic material system can well solve the problems of high alkalinity and late cracking of the cement system, and its curing performance is better than that of cement for soils with high water content, high salt content and high organic matter. The equipment does not have any technical or equipment transformation on the basis of cement. It is easy to use, low in cost and easy to promote.

Method used

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  • Soft soil hardening agent for sea area environment
  • Soft soil hardening agent for sea area environment
  • Soft soil hardening agent for sea area environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A kind of softening agent for sea area environment, in parts by mass, comprising:

[0058] 40 parts of cement;

[0059] 8 parts of fly ash;

[0060] 34 parts of slag powder;

[0061] 15 parts of desulfurized gypsum;

[0062] 3 parts admixture.

[0063] Mix the above raw materials in proportion to obtain 1# soft soil hardener.

Embodiment 2

[0065] A kind of softening agent for sea area environment, in parts by mass, comprising:

[0066] 35 parts of cement;

[0067] 9 parts of fly ash;

[0068] 38 parts of slag powder;

[0069] 15 parts of desulfurized gypsum;

[0070] 3 parts admixture.

[0071] Mix the above raw materials in proportion to obtain 2# soft soil hardener.

Embodiment 3

[0073] A kind of softening agent for sea area environment, in parts by mass, comprising:

[0074] 30 parts of cement;

[0075] 10 parts of fly ash;

[0076] 42 parts of slag powder;

[0077] 15 parts of desulfurized gypsum;

[0078] 3 parts energizer.

[0079] Mix the above raw materials in proportion to obtain 3# soft soil hardener.

[0080] Among them, 1# to 3# soft soil hardeners are all mixed materials of powder materials. The specific surface area of ​​slag powder is 450m 2 / kg. The specific surface area of ​​fly ash is 400m 2 / kg. The specific surface area of ​​desulfurized gypsum is 350m 2 / kg. The specific surface area of ​​cement powder is 320m 2 / kg.

[0081] Blank control sample: P.C.42.5 cement.

[0082]In the blank group, according to the ratio of cement and soft soil mass 1:4, the products of Examples 1-4 are mixed with water at the ratio of cementitious material and soft soil mass 1:7 to fill the filler with a concentration of 65%, and its compressi...

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Abstract

The invention relates to the technical field of soft soil solidification, in particular to a soft soil hardening agent for a sea area environment, which comprises the following components in parts by weight: 20-40 parts of cement, 8-12 parts of ground fly ash, 34-50 parts of slag powder, 13-15 parts of gypsum and 3-5 parts of an early strength activator. The soft soil hardening agent is suitable for soft foundation treatment processes of deep mixing piles, high-pressure jet grouting piles and the like in a sea area environment, marine silt and mucky soil with high water content, high organic matter content and high salt content are solidified, and compared with traditional cement, the soft soil hardening agent has better gelling property and economic value; and the soft soil hardening agent has the advantages of simple production process, low cost, wide raw material source, environmental protection and the like.

Description

technical field [0001] The invention relates to the technical field of soft soil solidification, in particular to a soft soil hardener used in sea environment. Background technique [0002] With the continuous expansion of my country's construction scale, the demand for land resources is becoming increasingly tense. However, high-quality land resources are limited, so it is necessary to utilize the marine soft soil widely distributed in the southeast coastal areas of my country. Under the marine environment, the ultra-soft soil layer is widely distributed in the southeast coast of my country. It has many characteristics such as large void ratio, high water content, low strength, high compressibility, and physical state ranging from soft plastic to fluid plastic. The engineering performance is extremely poor. Reinforcement of soft soil foundation has become one of the hot topics in engineering construction and maintenance. There are many methods of soft soil reinforcement, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C09K17/10
CPCC04B28/04C09K17/10C04B2111/00732C04B2201/50C04B2111/00017C04B18/08C04B18/141C04B22/145C04B2103/10C04B22/08C04B22/124C04B22/147C04B22/085
Inventor 季毛伟曲效成高永涛张梦梁锐
Owner 北京安科兴业科技股份有限公司
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