Early-strength setting accelerator, high temperature-resistant anti-cracking waterproof plugging material and preparation method and construction material of high temperature-resistant anti-cracking waterproof plugging material

Abstract

The invention discloses an early-strength setting accelerator, a high temperature-resistant anti-cracking waterproof plugging material and a preparation method and construction material of the high temperature-resistant anti-cracking waterproof plugging material. The early-strength setting accelerator includes active magnesium oxide, zinc fluorosilicate, aluminum sulfate, melamine, lithium sulfateand sodium silicate, and the high temperature-resistant anti-cracking waterproof plugging material comprises ash concrete, fly ash, metakaolin, quartz sand, calcium sulfate whisker, the early-strength setting accelerator, a water-retaining agent, a water reducing agent and a defoaming agent. The calcium sulfate whisker is added to the waterproof plugging material, micro-expansion is performed onthe calcium sulfate whisker during hydration drying of the waterproof plugging material, so that the strength of the waterproof plugging material is supplemented, and gaps are filled; and the waterproof plugging material has anti-shrinkage and anti-cracking performance, high water resistance, fast curing, high early strength, high temperature resistance or resistance to fire roasting and good weather resistance.

Description

technical field [0001] The invention belongs to the field of plugging building materials, and more specifically relates to an early-strength accelerator, a high-temperature-resistant, crack-resistant, and waterproof plugging material, a preparation method thereof, and a construction material. Background technique [0002] Building leakage is mainly manifested in walls, roofs, door and window openings, pipes and other parts. It is an important disease that affects the service life of modern concrete structures. How to effectively stop water and leaks is a current research hotspot. Most of the inorganic waterproof plugging materials are made of special cement as the main raw material, mixed with specific additives, and processed by special processes. There is no problem of material aging during the use of organic waterproof plugging materials, and they can be quickly solidified on the surface of concrete structures. The production cost is low, and the plugging effect is good, ...

AI Technical Summary

Problems solved by technology

[0004] In recent years, the research on inorganic waterproof plugging materials prepared by ordinary Portland cement has become a hot spot for rapid plugging materials. However, due to its own hydration characteristics, ordinary Portland cement-based materials have slow strength development, large chemical shrinkage and cracking in the later stage. Serious, the problem of poor durability makes its waterproof and plugging effect greatly reduced, and there are very few examples of actual production applications

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