Preparation method of waterproof concrete

Abstract

Provided is a preparation method of a waterproof concrete; raw material components comprising cement, sand, carpolite, water, a water reducing agent, a swelling agent and fly ash are stirred and mixed and cured to obtain the waterproof concrete; the swelling agent allows the concrete to swell in a constrained environment, communication holes in the concrete are significantly reduced, the anti-permeability waterproof properties are enhanced, and the strength is also increased significantly; with addition of the water reducing agent, the stability and performance of the concrete are enhanced, problems of common dissociation and water segregation and collapsed slump loss of large-liquidity pumped concrete are avoided, a non-vibrating self-compacting effect is achieved, and construction is convenient; with the use of the fly ash, concrete pores and capillary pores are filled, and with the addition of the fly ash, a pore structure of the concrete is improved and the compactness is increased; and the prepared waterproof concrete is good in self-compacting performance and excellent in anti-permeability and anti-crack performance, and has the later strength improved significantly.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a preparation method of waterproof concrete. Background technique [0002] With the continuous development of concrete composition materials, people's performance requirements for concrete are not limited to compressive strength and speed, but more attention is paid to the balance and coordination of comprehensive indicators such as durability, anti-seepage and waterproof performance, and self-compacting properties of concrete. At present, waterproof concrete as the waterproof measure of the main body of the project has been generally accepted by the underground engineering field. Engineering waterproofing can be divided into two parts: one is the waterproofing of the main structure, and the other is the waterproofing of detailed structures, especially construction joints, deformation joints, and post-casting belts. At present, the main body of the project adopts trad...

AI Technical Summary

Problems solved by technology

At present, the main body of the project adopts traditional waterproof concrete with good waterproof effect, but the detailed structure, especially the construction joints and deformation joints, have a lot of water leakage

For the maintenance structure directly in contact with groundwater, such as the basement of a building, because it is buried deep underground, it is constantly infiltrated by groundwater. If the waterproof problem is not handled properly, it will cause groundwater to leak into the project and affect personnel inside. In normal work and life, the presence of water leakage will accelerate the corrosion of the interior decoration and equipment of the project. Therefore, the application of new waterproof concrete to solve the water leakage problem of underground concrete structures is a subject that cannot be ignored.