Self-compacting concrete prepared from modified ceramic polishing powder and preparation method of self-compacting concrete

Abstract

The invention relates to the technical field of building materials, in particular to self-compacting concrete prepared from modified ceramic polishing powder and a preparation method of the self-compacting concrete. The self-compacting concrete is prepared from the following raw materials: cement, modified ceramic polishing powder, fly ash, coarse aggregate, artificial sand, water and a polycarboxylic acid high-performance water reducing agent, the modified ceramic polishing powder is obtained by sequentially carrying out soaking treatment on ceramic polishing fine powder through a coupling agent solution and soaking treatment through a coupling agent solution added with cellulose ether and an organic silicon defoaming agent. The specific surface area of the ceramic polishing fine powder is 800-830 m < 2 > / kg. The self-compacting concrete is doped with the modified ceramic polishing powder, so that the compactness of the concrete can be effectively improved, the flowability and the water-retaining property of the self-compacting concrete can also be improved, more obviously, the later strength of the concrete is better improved, and the problem of shortage of mineral admixture resources can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-compacting concrete prepared by using modified ceramic polishing powder and a preparation method thereof. Background technique [0002] Concrete generally refers to a mixture of cement as the main gel material, mixed with water, fine aggregate and coarse aggregate in an appropriate proportion, and uniformly stirred. Since a large amount of mineral admixtures are required in the preparation process of concrete, the resources of mineral admixtures are becoming increasingly scarce. Therefore, it is a challenge in the field of concrete preparation technology to find materials that can replace mineral powder and fly ash to prepare concrete. important question. [0003] With the rapid development of social economy and ceramic industry, ceramic industry waste is increasing day by day, which not only causes great pressure on the urban environment, but also limits the d...

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Problems solved by technology

[0003] With the rapid development of social economy and ceramic industry, ceramic industry waste is increasing day by day, which not only causes great pressure on the urban environment, but also limits the development of urban economy and the sustainable development of ceramic industry; The relatively low degree of utilization and the shortage of funds have resulted in a large amount of waste slag occupying cultivated land and polluting water and air. According to incomplete statistics, the annual output of ceramic waste in the country is estimated to be about 10 million tons. Such a large amount of ceramic waste is no longer simply landfilled. The problem that can be solved, and the landfill of ceramic waste not only consumes manpower and material resources, but also pollutes the groundwater quality, turning waste into treasure, and turning ceramic waste into resources has become a top priority for science and technology and environmental protection departments

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