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Curing agent for treating deep soft foundation soil layer and preparation method thereof

A curing agent and soft foundation technology, applied in chemical instruments and methods, soil conditioning materials, organic fertilizers, etc., can solve problems such as project failure, improper construction procedures, and adverse effects on project quality, and achieve improved permeability and anti-liquefaction capabilities Improved effect

Inactive Publication Date: 2013-03-13
HUBEI COMM PLANNING & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When doing projects on such foundations, if the soft foundation is not handled properly or the construction procedures are improper, it will have an adverse effect on the quality of the project, and even cause the project to fail.
Instances of such quality stories occur from time to time, and secondary processing is expensive

Method used

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  • Curing agent for treating deep soft foundation soil layer and preparation method thereof
  • Curing agent for treating deep soft foundation soil layer and preparation method thereof
  • Curing agent for treating deep soft foundation soil layer and preparation method thereof

Examples

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Effect test

Embodiment Construction

[0022] Table 1 is the raw materials and proportioning used in Examples 1-4 of the present invention.

[0023] Table 1 Raw materials used in each embodiment and proportioning unit: %

[0024]

[0025]

[0026] The aliphatic sulfonate water reducer in the table was purchased from Bosheng Chemical Technology Co., Ltd., Jiangshan City, Zhejiang Province.

[0027] A kind of preparation method of the solidifying agent of processing deep soft soil layer, carries out according to the following steps:

[0028] (1) Put metal oxides and non-metal oxides in a dryer for drying according to the substances and dosages described in the above table 1, and then heat at 800°C for 3 hours;

[0029] (2) Grinding with a ball mill until the sieve residue on an 80 μm square hole sieve is no more than 4.0%;

[0030] (3) Finally, add the amount of aliphatic sulfonate water reducer in the above Table 1 and stir evenly to prepare a curing agent for treating deep and thick soft soil layers.

[00...

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Abstract

The invention relates to a curing agent for treating a deep soft foundation soil layer and a preparation method thereof. The curing agent consists of metal oxides with activity of Al2O3, Fe2O3, CaO and MgO, nonmetal oxides with activity of SiO2 and SO3, and an acyclic sulfonate water-reducer. The preparation method for the curing agent comprises the following steps of: drying the metal oxides and the nonmetal oxides in a dryer, and heating at the temperature of between 750 and 850DEG C for 3 to 4 hours; grinding into granules that the residue of a 80 mu m square sifter is not more than 4.0 percent by using a ball mill; and adding the acyclic sulfonate water-reducer and uniformly stirring to obtain the curing agent for treating the deep soft foundation soil layer. The curing agent can make the unconfined compressive strength, deformation, permeability, liquefaction resistance and other properties of the treated soft foundation soil body obviously improved.

Description

technical field [0001] The invention relates to a curing agent used in various projects for treating deep and thick soft soil layers and a preparation method thereof. Background technique [0002] Highways, especially expressways, often need to be filled with high embankments in deep soft ground due to the requirements of the line. For embankments built on these soft foundations, if the soft foundations are not handled properly, they may become unstable during construction or have excessive foundation settlement after the completion of the project. Therefore, developed countries with sufficient funds generally choose dry bridge construction for such problems to avoid huge losses caused by possible reconstruction in the future. In my country's coastal areas, except for some parts of Shandong, most of the coastline is muddy coast. Coastal rivers, plains near the estuaries of large rivers, and inland plains are mostly fluvial, marine, or lagoon-facies sedimentary layers, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/48C09K103/00
Inventor 胡衍旺危文康胡良年
Owner HUBEI COMM PLANNING & DESIGN INST CO LTD
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