Concrete composition and regeneration technology and additive thereof

Abstract

The invention relates to a concrete composition and a regeneration technology and additive thereof. The composition comprises an A component, a B component and a C component; the A component comprisessand and gravel, the B component comprises binding agent, diluent, coal ash, mineral admixture and anti-corrosion admixture, and the C component comprises EVA shrinkage balls, talcum powder and quicklime. The EVA shrinkage balls of the C component are added to the concrete, and EVA is a substance which can generate volume shrinkage when being heated or cooled. According to the technical scheme, the EVA shrinkage balls which are shrunk after being heated are adopted, the EVA shrinkage balls are hollow balls and are mixed into the concrete, when the concrete needs to be disassembled, the concrete road surface is subjected to heat pretreatment, the EVA shrinkage balls which are mixed into the concrete road surface are heated, the volumes of the EVA shrinkage balls are decreased, and accordingly a cavity is formed in the portion which is filled with the EVA shrinkage balls in advance; under the situation, when the concrete is hammered, the cavity is easily damaged due to a thin structure,and the concrete composition helps to hammer concrete into small concrete blocks which are used for regeneration concrete aggregate particles.

Description

technical field [0001] The invention relates to a concrete formula, in particular to a concrete formula and its regeneration process and regeneration additive. 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 freight, causes...

AI Technical Summary

Problems solved by technology

[0004] In the process of crushing the discarded concrete, since the internal cementation of the concrete is relatively tight, it is necessary to exert a great hammering force on the concrete, so that the concrete is broken into smaller blocks for reuse; however, hammering The generated vibration will cause the internal structure of the concrete aggregate to loosen, resulting in a reduction in the strength of the concrete structure obtained by reusing the concrete aggregate.