Self-expansion type high-flow regime quick-hardening early-strength repairing grouting material

A grouting material and high fluidity technology, applied in the field of building materials, can solve the problems of easy segregation and bleeding, high cost, poor grout stability, etc., and achieve good volume stability, high fluidity, and good groutability
CN101844907AActive Publication Date: 2010-09-29WUHAN UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2010-09-29

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Abstract

The invention belongs to the technical field of building materials and in particular relates to a grouting material used for a concrete structure. The self-expansion type high-flow regime quick-hardening early-strength repairing grouting material is characterized by comprising sulfate aluminum cement, metakaolin, gypsum, a high efficiency water-reducing agent, an antifoaming agent, sand and water. The material comprises the following raw materials in part by weight: 0.1 to 50 parts of silicate cement, 30 to 80 parts of sulfate aluminum cement, 10 to 25 parts of metakaolin, 4 to 8 parts of gypsum, 0.1 to 1 part of high efficiency water-reducing agent, 0.01 to 1 part of retarder, 0.1 to 0.3 part of antifoaming agent, 50 to 150 parts of sand, and 26 to 30 parts of water. The material has thecharacteristics of moderate early expansion, high volume stability at later stage, excellent homogenization and no bleeding isolation, self-expansion, high flow regime, quick hardening and early strength.
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Description

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a grouting material for concrete structures. Background technique

[0002] In civil engineering structures, there are various gaps and holes that need to be filled in time, so as to achieve the functions of steel anchorage, seepage prevention and plugging, reinforcement and reinforcement. Grouting is a method of pouring high-fluidity and fast-setting and hardening slurry into cracked water-bearing rock formations, concrete holes or loose soil layers to improve the integrity of structures and the ability to resist external erosion.

[0003] At present, there are two main types of grouting materials on the market: organic grouting materials and inorganic grouting materials. Organic grouting materials have the advantages of low viscosity, good groutability, can be poured into small cracks or pores, and the setting time can be adjusted according to engineering...

Claims

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