Concrete material by using tail sand to displace yellow sand and preparation method thereof

Abstract

The invention discloses a concrete material by using tail sand to displace yellow sand and a preparation method thereof. The concrete material comprises the following raw materials: cement, industrial waste residue, water reducing agent, tail sand, water and reinforced fiber, wherein the industrial waste residue is one or two or more of silica fume, fly ash, fine slag powder, fine steel slag powder and other industrial byproducts with pozzolanic activity; the tail sand is the byproducts of the mining industry, with the maximum grain size of 3mm, namely the solid wastes of all types of mining enterprises. The preparation method disclosed by the invention is the improvement on preparation of common concrete; the prepared concrete product has good performances; and tail sand is fully utilized and the material and the method disclosed by the invention is environment-friendly.

Description

technical field

[0001] The invention relates to a concrete material and a preparation method thereof, in particular to a concrete material prepared by using tailing sand instead of yellow sand and a preparation method of the material. Background technique

[0002] Cement concrete is the most widely used material in the construction industry. It is estimated that the annual consumption of concrete in the world is 11 billion tons. Among them, yellow sand occupies a large proportion.

[0003] In 2005, the State Council issued a number of opinions on accelerating the development of circular economy issued by the State Council

[2005] No. 22, and in 2006 the National Development and Reform Commission’s Fa Gai Ban Huan Zi

[2006] No. 538 document on the "Special Plan for Comprehensive Utilization of Resources" both pointed out that : In 2010, the comprehensive utilization rate of tailings and slag in my country will reach more than 86%; the comprehensive utilization rate of industr...

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