Fast-curing waterstop plugging material as well as preparation method and application method thereof

Abstract

The invention discloses a fast-curing waterstop plugging material as well as a preparation method and an application method thereof, belonging to the field of waterproof plugging projects. The fast-curing waterstop plugging material disclosed by the invention comprises the following components in parts by mass: 4-6 parts of water swelling aggregate, 3-5 parts of fast-hardening cementing material, 0.1-0.9 part of a coagulation accelerator and 0.1-0.9 part of a hardening accelerator, wherein the coarse aggregate in the water swelling aggregate is expanded perlite, and the fine aggregate is bentonite; the particle size of the expanded perlite is 1-5mm, and the particle size of the bentonite is less than 1mm; and the mass ratio of the expanded perlite to bentonite is 1-2. According to the invention, through the water swelling property of the plugging material aggregate, a fast water plugging effect is realized; in the water plugging process, since the concretion body is dense accumulation of the coarse and fine aggregates, the components of the fast-hardening cementing material, the coagulation accelerator and the hardening accelerator do not change in situ, and the concretion body has the effects of waterstop, plugging and stable strength of concretion structure for sure.

Description

technical field [0001] The invention relates to the technical field of waterproof and plugging, and more specifically, relates to a fast-curing water-stopping and plugging material, a preparation method and an application method thereof. Background technique [0002] During the excavation of foundation pits or tunnels, or during the use of dams, especially in the flood season, there are piping situations such as water leakage and sand leakage. At present, for this kind of situation, the way of drilling and pouring polyurethane is generally adopted to block the plugging. However, the volume expansion of polyurethane foaming process is slow and difficult to control. It is difficult to deal with the situation of large water and sand gushing, and the grouting process requires a lot of Polyurethane flows out with water, and the waste is serious. At the same time, the strength of the polyurethane foam is low, and it is not firmly combined with the plugged part, and there is a ris...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the prior art that it is difficult to deal with large water and sand gushes, and to provide a fast-curing water-stopping and plugging material and its preparation method and application method. The technical solution of the present invention uses water-absorbing The combination of expansive aggregate and fast-hardening cementitious material is used for waterproofing and plugging, which ensures that the consolidated body has the effect of water-stopping, plugging and stable strength of the consolidated structure