Preparation method of high-ductility and high-strength concrete

Abstract

The invention discloses a preparation method of high-ductility and high-strength concrete, and belongs to the technical field of concrete processing. The preparation method comprises the following steps: S1, stirring prefabricated raw materials; S2, preparing a concrete initial material; S3, standing; S4, flocculating; and S5, filling a die. The high-ductility and high-strength concrete prepared by the preparation method has the characteristics of light weight, high strength and good weather resistance, can meet the requirements of the construction industry on concrete performance indexes, and has a relatively good application prospect, meanwhile, cement, fine sand and diatomite are compounded as aggregate, so that the internal porosity of the concrete is improved, the elasticity of the concrete is remarkably reduced, the stacking density and the mass density of the concrete are reduced, and the concrete has the characteristic of light weight, by adding the reinforced fibers and the graphene oxide, the crack resistance and the strength of the concrete can be remarkably improved, and polymeric aluminum chloride can improve the strength of the concrete.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a preparation method of high ductility and high strength concrete. Background technique [0002] Concrete is a widely used building material in modern times. It has the advantages of abundant raw materials, low price, simple process, high strength and good durability. [0003] Recycled concrete refers to the new concrete prepared by crushing, cleaning and grading waste concrete blocks, mixing them with gradation in a certain proportion, replacing part or all of natural aggregates such as sand and gravel, and then adding cement and water. [0004] However, during the crushing process of discarded concrete blocks, due to the action of external mechanical force, a large number of micro-cracks are prone to appear inside the concrete blocks, which leads to an increase in the porosity of the concrete blocks, which makes the recycled concrete produced by the recycled concre...

AI Technical Summary

Problems solved by technology

[0004] However, during the crushing process of discarded concrete blocks, due to the action of external mechanical forces, a large number of fine cracks are prone to appear inside the concrete blocks, resulting in an increase in the porosity of the concrete blocks, which makes the density of the recycled concrete obtained from it poor, resulting in poor concrete strength

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