Preparation and application method of cement-free high-performance soil curing agent using bulk industrial solid waste

Abstract

The invention relates to a cement-free high-performance soil curing agent using bulk industrial solid waste. The soil curing agent is composed of special treatment steel slag, water slag, waste rock powder, desulfuration gypsum, phosphogypsum slag, calcium carbide slag and zeolite. The soil curing agent of the invention has better performance than the conventional soil curing agent, and is beneficial to the improvement of engineering quality and reduction of cost. More than 90% of the raw materials used in the invention are bulk industrial solid waste, so that the method not only satisfactorily solves the problems of land occupation, serious environment pollution and idle resources caused by accumulation of a large amount of industrial solid waste, but also effectively replaces cement andclinker in the conventional soil curing agent, equivalently eliminates the problems of energy consumption, destruction of nature and generation of harmful gases such as CO2 in the production of the cement and clinker; moreover, the method also plays a role in treatment of wastes with processes of wastes against one another. For example, in China, the use of the product of the invention for partially replacing a conventional product can reduce a large amount of explosives, coal consumption and power consumption in mountain blasting every year, and reduce the emission of harmful gases such as CO2 by hundreds of millions of tons, thereby greatly reducing the demand for nature and destruction; therefore, the method undoubtedly has great significance for improving China's economic, social and environmental benefits.

Description

【Technical field】 [0001] The invention relates to the technical field of building materials. More specifically, the invention relates to a cement-free bulk industrial solid waste high-performance soil stabilizer. 【Background technique】 [0002] From the various soil curing agents currently in use in China, whether they are solid and liquid in terms of form, or inorganic, ionic, and organic polymeric curing agents in terms of material composition, they are ubiquitous. There are several major bottlenecks: First, for various soil properties, it is often considered single-targeted and not compatible enough. One key only opens one lock, and only a small amount of compatibility is considered, but it is often difficult to take care of the needs of all parties, thus affecting the application range and effect of the soil stabilizer; second, the compressive strength of the stabilized soil The flexural strength is not high enough, most of them have just reached the standard, and some...

AI Technical Summary

Problems solved by technology

[0002] From the various soil curing agents currently in use in China, whether they are solid and liquid in terms of form, or inorganic, ionic, and organic polymeric curing agents in terms of material composition, they are ubiquitous. There are several major bottlenecks: First, for various soil properties, it is often considered single-targeted, and the compatibility is not enough

When encountering soil with high water content and high organic matter content, the strength of the soil after curing is often low, and traditional curing agents such as cement or clinker, fly ash, lime, and gypsum are used, and the water formed during the curing process The chemical products cannot effectively fill the internal pores of the soil. After the curing is completed, there are still a large number of pores in the structure. The water stability and durability are poor, and shrinkage and cracking are prone to occur.

The reason for these situations is that the best formula and best process have not been found

Sixth, conventional curing agents are expensive

Transporting, crushing and firing clinker consumes energy and pollutes the environment

Images