Method for preparing high anti-permeability concrete

Abstract

The invention discloses a method for preparing high anti-permeability concrete. The method comprises the following steps: weighing raw materials, wherein the raw materials comprise cement, water, sand, gravel, silicon dioxide, ultra-fine slag, superfine quartz sand, a high-performance water reducing agent, sodium alkyl benzene sulfonate and hydrophilic colloid; stirring and reacting; pouring the weighed cement, superfine quartz sand and ultra-fine slag into a stirrer, and stirring 50-80 seconds; pouring the weighed sand into the stirrer, and stirring 50-80 seconds; pouring the weighed water, silicon dioxide, high-performance water reducing agent, sodium alkyl benzene sulfonate and hydrophilic colloid, stirring 50-80 seconds, and standing 30-50 seconds; and finally, pouring the gravel, stirring 95-120 seconds, thereby obtaining the high anti-permeability concrete. According to the method for preparing the high anti-permeability concrete disclosed by the invention, the preparation method is simple, the prepared concrete is high-efficiency and lasting in anti-permeability and waterproof performances, does not generate corrosion on reinforcements inside the concrete structure and is excellent in ageing resistance.

Description

Technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing high-impermeability concrete. Background technique [0002] Concrete is the most widely used and used building material in civil engineering. Ordinary concrete refers to the use of cement as the cementing material, sand and stones as aggregates, which are mixed with water, poured into shape, and solidified into a certain strength "artificial stone", namely cement concrete, which is currently the largest amount of concrete used in engineering Variety. However, due to the characteristics of its own structure, ordinary concrete materials often leak during use, especially in those underground and edema structure projects, which severely restricts the application of concrete materials. Therefore, impermeable concrete was developed. Impermeable concrete improves the pore structure by increasing the density of concrete, thereby reducing the penetration ch...

AI Technical Summary

Problems solved by technology

[0003] However, on the one hand, the existing impermeable concrete requires high production technology, on the other hand, its waterproof and impermeable ability is limited, it cannot last long, and it will cause corrosion to the steel bars inside the concrete structure. Therefore, it is necessary to develop new and efficient impermeable concrete.