Preparation method of recycled concrete doped with waste concrete blocks

Abstract

The invention relates to a preparation method of recycled concrete doped with waste concrete blocks, a waste concrete block treatment device is adopted, and the waste concrete block treatment device comprises a bottom rack, a vertical rack, a crushing mechanism, a screening mechanism, a working rack and a retreatment mechanism. The method can solve the following problems: a. in the process of recycling and reprocessing traditional waste concrete, due to the fact that steel bars, wood and other structures possibly exist in the waste concrete, the steel bars, the wood and the like need to be subjected to primary screening treatment in the crushing process, the steel bars, the wood and the like are prevented from influencing the crushing effect of the waste concrete, graded crushing is achieved, and the crushing effect is better; and b, in the recovery and retreatment process of traditional waste concrete, due to different specifications such as hardness and strength of the concrete, the specifications and sizes of materials such as stones in the concrete are different, and when a mixture of stones and cement mortar with different specifications needs to be crushed, a crushing device is frequently replaced, and the technological process is relatively complex.

Description

technical field [0001] The invention relates to the field of concrete preparation, in particular to a method for preparing recycled concrete mixed with waste concrete blocks. Background technique [0002] Ordinary concrete is an artificial building material made of cement, water, sand and adhesives, mixed in appropriate proportions, uniformly mixed, compacted and cured. The stones and sand required in the process of concrete It needs to be obtained from nature, but in order to save natural resources and protect the environment, from the perspective of sustainable development in the long run, we can minimize the mining of sand and gravel raw materials, and we can recycle the waste concrete that has been produced. The land space is large, and the direct stacking will occupy the land. If the waste concrete is directly buried, it will also cause a waste of resources. Therefore, the waste concrete can be recycled twice, and the recycled aggregate can be reused with raw materials ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing recycled concrete mixed with waste concrete blocks, which can solve the following problems in the process of using waste concrete blocks to make recycled concrete: a. During the recycling and reprocessing of traditional waste concrete, there may be Steel bars, wood and other structures, so it is necessary to carry out primary screening treatment on steel bars, wood, etc. during the crushing process, so as to avoid the impact of steel bars, wood, etc. on the crushing effect of waste concrete, and realize graded crushing, so that the crushing effect is better. b Traditional waste concrete In the process of recycling and reprocessing, due to the different specifications of concrete hardness and strength, the specifications of the stones and other materials inside the concrete are different. When it is necessary to crush the mixture of stones and cement mortar with different specifications, the crushing device must be replaced frequently, and the cost is relatively high. High, the process is more complicated

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