High-titanium slag soft soil stabilizer

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...

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 of organic matter can undergo a series of chemical reactions with cement minerals, hindering Crystal growth of cement hydration products, which indirectly leads to lower strength of cement-strengthened soil

Lime-reinforced soil is extremely sensitive to the optimal water content and maximum dry density of the reinforced soil due to its large dry shrinkage, which is also limited in the reinforcement of soft soil foundations. In addition, when a higher foundation bearing capacity is required, lime soil often acts This is because the higher bearing capacity of the foundation often means that a larger dose of lime needs to be added, but too much lime exists in the form of free ash in the pores of the soil, which in turn will lead to Decreased strength of lime soil