High-titanium slag soft soil stabilizer

A high-titanium slag and curing agent technology, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve problems such as hindering the crystal growth of cement hydration products, large dry shrinkage, and low unconfined compressive strength. problems, to achieve the effect of promoting sustainable and efficient development

Active Publication Date: 2014-07-09
金湖恒固新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cement or lime is still used to consolidate soft soil in China, but the cement industry, as a high energy-consuming and high-pollution industry, is increasingly restricted in its use. In addition, practice has also proved that cement is also used in the consolidation of soft soil. There are some disadvantages, such as the slow formation of reinforced soil strength, low unconfined compressive strength and only selective reinforcement of certain soil types, seriously affecting the construction progress and other unfavorable factors, especially for some gray, gray Green, taupe soft soil containing a large amount of organic matter, because this type of soil has a large water capacity, plasticity, expansibility and low permeability, and the existence o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh and grind until the specific surface area is 350m 2 53.3kg of water-quenched high-titanium slag per kg, 33.3kg of PO42.5 cement, and 13.3kg of quicklime (available calcium oxide + magnesium oxide content ≥ 70%), mixed and stirred together to obtain a soft soil curing agent of the present invention . According to the above test and test procedures, the soft soil curing agent accounting for 5% and 10% of the soft soil mass fraction was weighed and mixed with the soft soil to prepare the solidified soil specimens, and the unconfined compressive strength at 7d and 28d ages was measured. The results showed that the unconfined compressive strengths of the solidified soil specimens accounting for 5% of the soft soil mass fraction at 7 days and 28 days were 837.3KPa and 1022.0KPa respectively; The compressive strengths are 999.8KPa and 1303.2KPa respectively.

Embodiment 2

[0027] Add 8 kg sodium carbonate in embodiment 1, all the other implements as embodiment 1. The result is to account for the solidified soil specimen 7d, 28d unconfined compressive strength of soft soil mass fraction 5% to be respectively 951.9KPa, 1283.0KPa; The unconfined compressive strengths of the solidified soil specimens with a mass fraction of 10% soft soil at 7d and 28d are 1164.8KPa and 1479.0KPa, respectively.

Embodiment 3

[0029] Add 8 kg sodium hydroxide in embodiment 1, all the other implements as embodiment 1. The result is that accounting for soft soil massfraction 5% solidified soil specimen 7d, 28d unconfined compressive strength is respectively 875.2KPa, 1108.5KPa; The unconfined compressive strengths of the solidified soil specimens accounting for 10% of the mass fraction of soft soil at 7d and 28d were 1034.8KPa and 1416.6KPa, respectively.

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Abstract

The invention discloses a high-titanium slag soft soil stabilizer, which consists of the following components in percentage by weight: 40.0-60.0 percent of high-titanium slag, 25.0-40.0 percent of ordinary Portland cement, 10.0-25.0 percent of quicklime and 0-10.0 percent of active component. The soft soil stabilizer is prepared by making full use of industrial waste residues produced during pig iron smelting. When the soft soil stabilizer is used for stabilizing soft soil foundations, relatively high unconfined compressive strength is achieved, waste is turned into valuable, and great economical significance and environmental protection benefit are realized.

Description

technical field [0001] The invention relates to a high-titanium slag soft soil curing agent, in particular to an environment-friendly soft soil consolidation material which can widely replace cement and lime for strengthening soft soil foundations. Background technique [0002] Silt, muddy soil, soft cohesive soil, peat and peaty soil are common soft soil types in foundation construction. Due to their high natural moisture content, low strength, large void ratio, high compressibility coefficient, and thixotropy and creep properties and other special engineering properties, and are often in the state of flow or softness, so the engineering geological conditions are poor, which often brings great harm to the foundation reinforcement project. Once it is not handled properly, it will cause great damage to the construction and use of the foundation. Therefore, soft soil is selected as the natural foundation in the project, and necessary reinforcement measures must be taken accor...

Claims

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Application Information

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IPC IPC(8): C09K17/10C09K103/00
Inventor 华苏东张竞张爱平姚晓诸华军杨鑫
Owner 金湖恒固新材料有限公司
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