A kind of C30 high impermeability concrete with low glue material consumption and preparation method thereof

Abstract

The invention relates to a C30 high-impermeability concrete with low glue consumption and a preparation method thereof. A kind of C30 high-impermeability concrete with low glue content, each component and content are as follows: per m 3 In concrete, 100-190 parts of cement, 30-80 parts of fly ash, 50-100 parts of mineral powder, 0-50 parts of silica fume, 0-65 parts of stone powder, 10-40 parts of modified metakaolin, and 300-590 parts of machine-made sand 220-550 parts of river sand, 650-1100 parts of gravel, 3-8 parts of polycarboxylate superplasticizer, 160-180 parts of water; the modified metakaolin is made of epoxy silane coupling agent, poly Styrene and gypsum are prepared by exciting modification of kaolin. The C30 impermeable concrete with low glue consumption provided by the invention has the advantages of less cement consumption, high strength and good impermeability.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a C30 high impermeability concrete with a low amount of cementitious material and a preparation method thereof. Background technique [0002] The impermeability of concrete includes the resistance to the diffusion of liquid substances, gaseous substances, and salt ions. There is a certain relationship between concrete impermeability and durability. Impermeability is not only related to the waterproof and water-retaining effect of concrete, but also has an impact on concrete frost resistance, chemical corrosion resistance and carbonation resistance. [0003] In commercial concrete mixing plants, the most used concrete is medium and low-strength concrete, such as C30 concrete. In recent years, the sources of raw materials for concrete mixing plants have changed, and more attention has been paid to the workability and strength parameters of concrete. The lack of effective monitori...

AI Technical Summary

Problems solved by technology

In recent years, the sources of raw materials for concrete mixing plants have changed, and more attention has been paid to the workability and strength parameters of concrete. The lack of effective monitoring of the anti-seepage performance has resulted in the occurrence of insufficient impermeability from time to time.