High-strength recycled fine aggregate anti-crack concrete preparation method

Abstract

The invention relates to a high-strength recycled fine aggregate anti-crack concrete preparation method. High-strength recycled fine aggregate anti-crack concrete preparation equipment is used, the high-strength recycled fine aggregate anti-crack concrete preparation equipment comprises a base and a cutting device, and the cutting device is arranged on the upper surface of the base. The equipment can solve the current problems that when used crushing equipment crushes more fiber clothes at one time, a machine is jammed, the crushing effect of the crushing equipment on the clothes is general, larger clothes pieces still exist, and when the large clothes pieces are mixed in recycled fine aggregate concrete, the crack strength of the concrete is severely reduced, the position of a cutter is located at a place which cannot be changed, the size of broken clothes pieces cannot be adjusted, the crushing treatment efficiency of subsequent broken clothes pieces is also reduced, and the production efficiency of the recycled fine aggregate concrete is reduced.

Description

technical field [0001] The invention relates to the field of building material preparation, in particular to a method for preparing high-strength recycled fine aggregate anti-crack concrete. Background technique [0002] Recycled fine aggregate concrete refers to concrete that partially or completely replaces natural fine aggregate with recycled fine aggregate. In order to improve the crack resistance of recycled fine aggregate concrete, some fibers are sometimes added to recycled fine aggregate concrete. For example, some recycled fiber clothes are crushed and added to recycled fine aggregate concrete. It can improve the crack resistance of recycled fine aggregate concrete, avoid waste of fiber clothes and pollute the environment, and enable resources to be reused. [0003] At present, when fiber clothing is broken, there are the following problems: [0004] 1. When the existing fiber clothing is crushed, the crushing equipment used will cause the equipment to be entangle...

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Problems solved by technology

[0004] 1. When the existing fiber clothing is crushed, the crushing equipment used will cause the equipment to be entangled due to the action of the fibers on the clothing when crushing a lot of fiber clothing at one time, resulting in the problem of the machine being stuck and broken. The crushing effect of the equipment on clothing is general, and there are still large pieces of clothing fragments. When these large pieces of clothing fragments are mixed in the recycled fine aggregate concrete, the cracking strength of the concrete will be seriously reduced.

[0005] 2. When the existing fiber clothing is crushed, the crushing equipment used directly uses props to cut the loose clothes in a cycle, which not only easily causes the props to be entangled by the clothes, but also the position of the cutter cannot be changed. In some places, the size of the broken pieces of clothes cannot be adjusted, and the crushing efficiency of the subsequent broken clothes will also be reduced, resulting in a decrease in the production efficiency of recycled fine aggregate concrete

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