A kind of concrete formula and its preparation method and its concrete recycling process

Abstract

The invention relates to a concrete formula, a preparation method and a concrete regeneration technology thereof. The concrete formula comprises the following components: cement, sand, crushed stone aggregate, fly ash, a binding agent, a mineral admixture, a concrete additive, quick lime and talcum powder. In a hammering process, when an acting force generating by hammering acts on concrete, the rigidity of the molded concrete is relatively high, so that a certain shaking acting force is generated in the concrete and the inner structure of the molded concrete is loosened, and furthermore, thestructural strength of the concrete which is prepared by utilizing regenerated concrete aggregate is remarkably reduced. Therefore, when the concrete is prepared for the first time, the concrete aggregate in the concrete is treated, so that the molded concrete can be conveniently knocked into relatively small concrete at a later period and then is used as the concrete aggregate.

Description

technical field [0001] The invention relates to a recycled concrete, in particular to a concrete formula and a preparation method and a concrete recycling process thereof. Background technique [0002] In recent years, the world's construction industry has entered a stage of rapid development. As the largest man-made material, the occupation of natural resources and the negative impact on the environment have also triggered discussions on sustainable development issues; The amount of waste concrete and waste concrete discharged from concrete factories and prefabricated component factories is huge. At the same time, it is expected that the discharge of waste concrete will increase with the acceleration of the socialization process worldwide, and the demolition and reconstruction of original buildings will increase day by day. The traditional treatment method of waste concrete is mainly to transport it to the suburbs for stacking or landfill, which not only costs a lot of fre...

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Problems solved by technology

[0003] For example, the Chinese patent application publication number "CN103626413A" discloses a process for preparing recycled concrete aggregates. By crushing waste concrete, it can be reused as aggregates; Therefore, it is necessary to exert a great hammering force on the concrete to break the concrete into smaller pieces for reuse; however, the vibration generated by the hammering will cause the internal structure of the concrete aggregate to loosen, resulting in Reduced strength of concrete structures due to reuse of concrete aggregates