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Quick repairing polymer cement base material and its preparing method

A repair material and cement-based technology, which is applied in the field of polymer cement-based quick repair materials and its preparation, can solve the problems of impossibility of repair, storage, transportation, construction application restrictions, etc., and achieve the effect of simple and flexible construction operation and fast setting time

Inactive Publication Date: 2003-11-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently widely used polymer emulsion modified cement-based repair material is a two-component construction material, which is subject to many restrictions in actual storage, transportation, and construction applications, especially, it cannot be repaired in a humid environment or underwater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Portland cement 100

[0037] High alumina cement 30

[0038] Redispersible latex powder 10

[0039] polycondensate 2

[0040] sodium carbonate 1

[0041] Bentonite 10

[0042] 1.25mm-2.5mm quartz sand 20

[0043] Less than 1.25mm quartz sand 30.

[0044] The above-mentioned components are prepared according to the above-mentioned process to prepare a quick repair material, which has the characteristics of large fluidity, moderate setting time and high strength. It can be poured into cracks of a certain width, and is suitable for large-scale repair and reinforcement projects.

Embodiment 2

[0046] Portland cement 100

[0047] High alumina cement 20

[0048] Redispersed latex powder 15

[0049] Sodium methylnaphthalene sulfonate condensate 1.5

[0050] Sodium carbonate 0

[0051] Bentonite 8

[0052] 1.25mm-2.5mm quartz sand 80

[0053] Less than 1.25mm quartz sand 120.

[0054] The rapid repair material prepared from the above components according to the aforementioned process has the characteristics of super high strength, high bonding strength, high fluidity and moderate setting time, and is suitable for various repair and reinforcement projects.

Embodiment 3

[0056] Portland cement 100

[0057] High alumina cement 40

[0058] Redispersible latex powder 12

[0059] Sulfamate 1.0

[0060] Sodium carbonate 4

[0061] Bentonite 10

[0062] 1.25mm-2.5mm quartz sand 50

[0063] Less than 1.25mm quartz sand 80.

[0064] The rapid repair material prepared from the above components according to the aforementioned process has the properties of short setting time, high bonding strength and high strength, and is suitable for special emergency repair and reinforcement projects.

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Abstract

The present invention is one polymer and cement-base quick repairing material for water engineering and building engineering. The material consists of portland cement, high-alumina cement, re-dispersed latex powder, high efficiency water reducing adhesive, sodium carbonate and other material in certain proportion. The material has high adhering strength and wide construction adaptability, and is suitable for construction in damp base especially.

Description

technical field [0001] The invention relates to a polymer cement-based rapid repair material for hydraulic engineering and construction engineering and a preparation method thereof. Specifically, it relates to a powdery high-performance polymer cement-based rapid repair material with the functions of repair, reinforcement and anti-seepage in hydraulic engineering, construction, bridges, tunnels and other projects and its preparation. Background technique [0002] Due to its high brittleness, concrete structures often crack inevitably in engineering applications. Cracking of the concrete structure leads to the decrease of water tightness and leakage of the concrete structure, which affects the service life of the project and even cannot be used normally. This is a common problem in the construction industry. There are two main reasons for cracks in concrete structures. One is caused by deformation, including temperature and humidity changes, shrinkage, expansion, uneven sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B14/10C04B22/10C04B24/24C04B28/06
Inventor 蒋正武孙振平
Owner TONGJI UNIV
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