Preparation method of novel high-strength self-compacting concrete

Abstract

The invention discloses a preparation method of novel high-strength self-compacting concrete. The novel high-strength self-compacting concrete comprises raw materials in parts by weight as follows: 3 parts of basalt fiber, 4 parts of glass fiber, 100 parts of cement, 160 parts of fly ash, 800 parts of rubble with the particle size of 10-15 mm, 250 parts of rubble with the particle size of 15-20 mm, 500 parts of sand, 150 parts of water, 10 parts of bentonite, 0.5 parts of a super plasticizer, 1 part of an air entraining agent, 0.1 parts of a defoaming agent, 0.4 parts of a rosin thermopolymer, 0.02 parts of a tackifier, 0.4 parts of lauryl sodium sulfate and 0.4 parts of calcium stearate. The preparation method of the novel high-strength self-compacting concrete is simple and convenient, characteristics of the raw materials can be fully used, the strength of the prepared concrete is greatly improved and is improved by more than 50% than that of concrete in the prior art, and the single-pile bearing force of a square pile prepared with the method is higher.

Description

technical field [0001] The invention relates to a preparation method of a novel high-strength self-compacting concrete. Background technique [0002] Concrete is a living building material. With the continuous development of concrete composition materials, people's understanding of material composite technology has been continuously improved. The performance requirements of concrete are not limited to compressive strength, but on the basis of strength, more attention is paid to the balance and coordination of comprehensive indicators such as durability and deformation performance of concrete. The requirements for various performance indicators of concrete are more clear, detailed and specific than before. At the same time, the improvement of the level of construction equipment and the continuous emergence and promotion of new construction techniques have made concrete technology adapt to different design, construction and use requirements, and has developed rapidly. [00...

AI Technical Summary

Problems solved by technology

However, the two techniques have the common disadvantages of low bearing capacity of single piles and large soil squeezing effect during construction. The protection of surrounding road pipelines and adjacent buildings must be fully considered during construction.