Concrete prepared from industrial solid waste materials

Abstract

The invention discloses concrete prepared from industrial solid waste materials. The concrete provided by the invention comprises above 30% of industrial solid waste materials and has unit weight of 2335 to 2372kg / m<3>. The concrete provided by the invention is characterized by comprising 8 to 16 wt% of cement PO42.5, 2 to 4 wt% of slag micro-powder, 2 to 4 wt% of fly ash, 0.4 to 0.8 wt% of steel slag micro-powder, 0.1 to 0.2 wt% of semi-hydrated desulfurized gypsum, 27 to 29 wt% of mining scraps, 3 to 9 wt% of yellow sand, 43 to 45 wt% of crushed stones, and the balance mixing water and an additive. The concrete prepared from industrial solid waste materials has low production cost, greatly saves resource materials, has good workability, pumpability, strength and durability, provides a novel approach for solid waste comprehensive utilization, and has obvious social, economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete prepared by using industrial solid waste materials. Background technique [0002] With the rapid development of my country's economic construction, the demand for commercial concrete is increasing year by year. At present, the preparation technology of commercial concrete generally uses a large amount of yellow sand, so its resources are becoming more and more scarce. The characteristics of yellow sand are: one is that its particle shape is smooth, and the other is that its particle gradation is continuous. Therefore, concrete prepared with yellow sand with a fineness modulus of 2.2 to 2.8 has better water retention, cohesion and pumpability, and is deeply affected by construction. Unit welcome. [0003] However, in the dry season every year, the transportation of yellow sand is difficult, resulting in great price fluctuations. Moreover, the e...

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Problems solved by technology

However, the concrete prepared in this way still needs a large amount of yellow sand, which cannot meet the requirements of enterprises for the prepared concrete to have excellent performance and reduce costs.

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