Preparation method for steel fiber ABS/PC plastic reclaimed aggregate concrete

Abstract

The invention discloses a preparation method for steel fiber ABS / PC plastic reclaimed aggregate concrete, which comprises the following steps of smashing, separating, sieving, cleaning and drying waste building concrete to obtain reclaimed concrete aggregate; smashing waste ABS / PC plastics to obtain reclaimed ABS / PC plastic particles; and then stirring steel fibers, reclaimed ABS / PC plastic particles, reclaimed concrete aggregate, natural coarse aggregate, sand, cement and water in proportion. The toughness, rupture strength, compression strength, impact resistance and other properties of thereclaimed aggregate concrete can be effectively improved by steel fiber modification; the reclaimed ABS / PC plastic particles can improve the anti-cracking performance, thermal insulation performance,wear-resisting performance and compression strength of the concrete; and the production of the material can reduce the environment pollution and improve the performance of the material without increasing cost.

Description

technical field [0001] The invention belongs to building engineering materials, in particular to a method for preparing concrete by mixing steel fibers, ABS / PC plastic particles and recycled concrete aggregates in proportion. Background technique [0002] The research and development of recycled concrete technology is to realize the recycling and utilization of construction waste, form new concrete products and then use them in buildings, so it is considered to be the most effective measure to solve construction waste. On the one hand, it can greatly reduce the amount of waste concrete that is landfilled and simply piled up, and solves the problem that waste concrete is difficult to handle and pollutes the environment; on the other hand, using construction waste instead of natural aggregate can reduce the continuous mining of natural aggregate , reducing the increasingly serious environmental problems caused by the over-exploitation of natural sand and gravel, and also relie...

AI Technical Summary

Problems solved by technology

However, waste concrete aggregates have lower density, higher water absorption and lower strength than ordinary aggregates.

On the one hand, due to the fact that there is more cement mortar attached to the surface of the recycled aggregate, and the strength of the cement mortar is low, the strength of the recycled aggregate is reduced; on the other hand, due to the weathering or air Corrosion and other environmental effects make the strength of recycled aggregates lower than that of natural aggregates

Therefore, the strength and durability of the recycled aggregate concrete produced are also lower than those of ordinary concrete.

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