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Patching material in quick modified polymer

A technology for repairing materials and polymers, used in building maintenance, building construction, construction, etc., can solve problems such as slow strength development, and achieve the effects of improved flexural strength, early strength, and durability.

Inactive Publication Date: 2003-05-07
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, these repair materials have good effects in concrete repair projects, but these materials have a common feature that their strength develops slowly, and they are helpless for some rapid repair projects or emergency repair projects with special requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 (for interface processing)

[0030] Sulphoaluminate cement 100

[0031] Standard quartz sand 100

[0032] SBR latex 622S 15

[0033] Triethanolamine 1.33

[0034] Sodium carbonate 0.67

[0035] water 22

[0036] The above are calculated in parts by weight.

[0037] The preparation method is the same as before.

Embodiment 2

[0038] Embodiment 2 (for interface processing)

[0039] Portland 525 cement 100

[0040] Standard quartz sand 100

[0041] SBR latex 622S 20

[0042] Triethanolamine 1

[0043] Sodium carbonate 2

[0044] water 30

[0045] The above are calculated in parts by weight.

[0046] The preparation method is the same as before.

[0047] formula

example 3

[0048] Example 3 (for surface repair)

[0049] Sulphoaluminate cement 100

[0050] Standard quartz sand 250

[0051] SBR latex 622S 10

[0052] Triethanolamine 2

[0053] sodium carbonate 1

[0054] water 38

[0055] The above is calculated in parts by weight.

[0056] The preparation method is the same as before.

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PUM

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Abstract

A polymer modified fast reparing material for th damaged concrete is prepared from early-strengthening or ordinary cement, butadiene-styrene rubber as modifier, sodium carbonate, and triethanolamine as accelerator through proportional mixing. Its advantages are higher early strength and high durability.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to polymer-modified cement mortar for repairing damaged concrete prepared with cement and polymers as main raw materials. Background technique [0002] Although concrete and reinforced concrete structures are famous for their durability, they are damaged due to improper design, poor construction quality, or the influence of the environment in which they are used, such as chloride ion erosion, freezing, and carbonization. Although these damages are initially superficial However, as time goes by, they will extend to the inner structural materials, affecting the service life of the building, and even affecting the safety of the structure, so it is very necessary to repair the damaged concrete. There are many kinds of concrete repair materials, mainly including various organic synthetic resins and their concretes, and inorganic early-strength cements, super-early-strength cem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/02C04B28/06
CPCC04B28/065C04B28/00C04B28/02
Inventor 杨钱荣朱蓓蓉张树青杨全兵吴学礼
Owner TONGJI UNIV