Super-high-performance cement base repairing material and preparing method thereof

A repair material and ultra-high performance technology, applied in the field of building materials, can solve the problems of low shrinkage performance, high strength, high bonding performance, low shrinkage, high elastic modulus, etc., to improve interface bonding performance and matrix strength , Increase the effect of compactness

Inactive Publication Date: 2018-05-11
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the fact that the existing concrete repair materials cannot take into account the properties of high strength, high bonding performance, low shrinkage, high elastic modulus, etc., the present invention proposes an ultra-high performance cement-based repair material, which not only has ultra-high compressive strength, Bending strength, bonding strength and extremely low shrinkage performance, also has excellent construction performance, high elastic modulus and ultra-high durability

Method used

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  • Super-high-performance cement base repairing material and preparing method thereof
  • Super-high-performance cement base repairing material and preparing method thereof
  • Super-high-performance cement base repairing material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The anti-cracking component in Example 1 is starch-based hydration heat control material, calcium oxide expansion agent, magnesium oxide expansion agent and polyether shrinkage reducer mixed in a mass ratio of 5:48:32:15; the fiber is 3 mm in length, The diameter is 0.15mm; the sand is a mixture of quartz sand and silicon carbide in a mass ratio of 60:40, and the maximum particle size of the sand is 0.6mm.

Embodiment 2

[0034] In Example 2, the anti-cracking component is a mixture of starch-based hydration heat regulating material and calcium oxide expansion agent in a mass ratio of 10:90; the fiber is steel fiber, 12 mm long and 0.2 mm in diameter; the sand is quartz sand and corundum sand according to The mass is mixed in a ratio of 40:60, and the maximum particle size of the sand is 5.0mm.

Embodiment 3

[0035] In Example 3, the anti-cracking component is calcium sulfoaluminate expansion agent; the fiber is steel fiber with a length of 12 mm and a diameter of 0.2 mm; the sand is a mixture of quartz sand and corundum in a mass ratio of 60:40, and the maximum particle size of the sand is 2.5 mm.

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Abstract

The invention discloses a super-high-performance cement base repairing material and a preparing method thereof. The repairing material is prepared from, by mass, 100 parts of cement, 15-50 parts of admixture, 2-15 parts of nanometer reinforcing agent, 3-10 parts of crack resistance component, 80-220 parts of sand, 10-30 parts of fiber, 2-5 parts of high-performance water reducing agent and 15-35 parts of water. The super-high-performance cement base repairing material has super-high tensile strength, bending resistance and adhesive strength and extremely low shrinkage performance, and has excellent construction performance, high elasticity modulus and super-high durability. The material has effects of repairing, reinforcing, seepage preventing, preventing and the like, and therefore the service life of the repairing material and a structure is prolonged. In addition, the material can be used as a joint material of a structural joint.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a repairing material, in particular to a repairing material which can be used in hydraulic engineering, civil engineering, transportation, electric power, seaport and other projects to repair, reinforce, prevent seepage and protect concrete. its preparation method. Background technique [0002] The performance degradation of cement concrete structures under the coupling effect of load and environmental factors is an inevitable and long-term physical and chemical process, which will lead to cracks and corrosion damage of concrete, which will seriously reduce the bearing capacity and anti-permeability of concrete structures. In order to prolong the service life of buildings, the protection and repair of existing concrete structures has become the focus of people's attention, and has become the key direction of the development of cement concrete industry. [0003] Repairin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/34C04B111/72
CPCC04B28/04C04B2111/343C04B2111/72C04B2201/10C04B2201/50C04B18/146C04B18/141C04B14/28C04B14/024C04B14/062C04B14/10C04B22/16C04B24/16C04B24/2652C04B2103/302C04B14/06C04B14/324C04B24/38C04B22/064C04B22/066C04B24/32C04B20/0076C04B14/303C04B14/48C04B22/14
Inventor 刘建忠张倩倩光鉴淼张丽辉沙建芳林玮
Owner JIANGSU SOBUTE NEW MATERIALS
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