Acrylate grouting material as well as preparation method and application thereof

Abstract

The invention belongs to the field of grouting plugging materials, and discloses an acrylate grouting material and a preparation method and an application thereof. The grouting material is formed by mixing a component A, a component B and an accelerant according to the mass ratio of 1: 1: 0.06, wherein the component A is prepared from the following raw materials in parts by mass: 21-28 parts of acrylic acid, 8-15 parts of an alkaline substance, 54-65 parts of distilled water and 2-4 parts of a self-made cross-linking agent; and the component B is prepared from the following raw materials in parts by mass: 2-4 parts of an initiator and 96-98 parts of distilled water. The self-made cross-linking agent is obtained by taking acrylic acid and a water glass solution as raw materials through reaction. By adopting the method, acrylate gel with relatively high cross-linking strength and good elasticity can be obtained. During use, a mixture of the component A and the accelerant is injected intoa leakage or water accumulation part together with the component B by adopting a double-liquid grouting machine, and the grouting material is mainly applied to leakage water treatment of a building expansion joint, soil layer consolidation and grouting of a foundation anti-seepage curtain.

Description

technical field [0001] The invention belongs to the field of grouting plugging materials, in particular to an acrylate grouting material and its preparation method and application. Background technique [0002] The problem of waterproofing in the modern construction industry has always been a major problem that plagues everyone. The initial method is to use cement mortar for pouring, but there are some difficulties in using cement grouting. For some small cracks, the penetration of cement is relatively low, and it is difficult to achieve complete sealing, and the cement mortar is inelastic after curing, so it is difficult to use in some expansion joints. It was not until the advent of acrylate grouting materials in the 1970s that this problem was solved. The initial viscosity of acrylate grout was low, the gel body had good elasticity and the gel time was controllable. Because of these excellent properties, acrylate grouting materials are widely used in the field of waterpr...

AI Technical Summary

Problems solved by technology

Most of the current acrylate grouting materials use metal oxides or hydroxides as raw materials, and the cross-linking agent is basically obtained by alkyd esterification. The final acrylate gel is easy to lose water, resulting in reduced elasticity, and the strength is not enough after water absorption.

Images