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Cement-based phase-change waterproof plugging material

A waterproof plugging, cement-based technology, applied in the field of leakage plugging materials, can solve the problems of inconvenient construction for consumers and enterprises, and achieve the effects of convenient and fast construction, stable setting time, and improved performance stability.

Inactive Publication Date: 2017-02-15
西卡(上海)管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a cement-based phase change waterproof plugging material, which solves the problem that the setting time of the current waterproof plugging material changes with the change of the ambient temperature, which has great uncertainty, and provides consumers and Inconvenient problems caused by the construction of enterprises

Method used

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Experimental program
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Effect test

Embodiment 1

[0023] It is prepared from the following components by mass: 50 parts of Portland cement, 46 parts of sulfur-aluminum cement, 2.6 parts of calcium powder, 0.2 part of silica fume, 0.2 part of quick-drying agent, 0.55 part of phase-change special rubber powder, 0.05 part of starch ether, 0.1 part of water reducer, and 0.3 part of osmotic crystallization masterbatch.

[0024] The strength grade of Portland cement is 52.5. The strength grade of sulfur-aluminum cement is 42.5. The specification of calcium powder is 200 mesh. The particle size of silica fume is less than 5% on a 325 mesh sieve. The quick-drying agent uses sodium oleate. Phase-change special rubber powder adopts phase-change microcapsules containing ethylene-vinyl acetate copolymer. The starch ether adopts potato modified starch ether. The water reducing agent adopts sulfonated melamine water reducing agent. The infiltration crystalline masterbatch is a complex of alkali metal salts and complexes.

[0025] Th...

Embodiment 2

[0029] It is prepared from the following components by mass: 36.14 parts of Portland cement, 60 parts of sulfur-aluminum cement, 2.1 parts of calcium powder, 0.2 parts of silica fume, 0.2 parts of quick-drying agent, 0.5 parts of special phase-change rubber powder, 0.06 parts of starch ether, 0.3 parts of water reducer, and 0.5 parts of osmotic crystallization masterbatch.

[0030] The strength grade of Portland cement is 42.5. The strength grade of sulfur-aluminum cement is 42.5. The specification of calcium powder is 325 mesh. The particle size of silica fume is less than 5% on a 325 mesh sieve. The quick-drying agent uses sodium oleate. Phase-change special rubber powder adopts phase-change microcapsules containing ethylene-vinyl acetate copolymer. The starch ether adopts potato modified starch ether. The water reducing agent adopts sulfonated melamine water reducing agent. The infiltration crystalline masterbatch is a complex of alkaline earth metal salts and complex...

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Abstract

The invention discloses a cement-based phase-change waterproof plugging material, and belongs to the field of plugging material. The cement-based phase-change waterproof plugging material is prepared from, by mass, 30 to 60 parts of Portland cement, 30 to 60 parts of sulfur aluminum cement, 2 to 5 parts of calcium powder, 0.2 to 3 parts of silica fume, 0.1 to 0.5 part of a quick drying agent, 0.5 to 2 parts of a phase-change special adhesive powder, 0.01 to 0.06 part of starch ether, 0.01 to 0.3 part of a water reducing agent, and 0.1 to 0.6 part of permeable crystallization master batch. The phase-change special adhesive powder is added, so that the difference of setting time of the cement-based phase-change waterproof plugging material at different environment temperatures is small, setting time is stabilized, product performance stability is increased, and construction is more convenient and rapid.

Description

technical field [0001] The invention relates to a cement-based phase-change waterproof plugging material, which belongs to the field of plugging materials. Background technique [0002] Cement-based waterproof plugging material is a powder waterproof coating containing active compounds. On the wet base surface, the active substance contained in the product, using the porosity of the concrete structure, penetrates into the capillary pores inside the substrate through capillary phenomenon, and undergoes a chemical reaction to form water-insoluble dendritic fiber crystals and combine with them. The substrate is integrated, which can directly play a good role in waterproofing and reinforcing the concrete structure. It is divided into quick-setting type and slow-setting type. Among them, the quick-setting type, because of its rapid setting, can be tens of seconds fast or a few minutes slow, and can quickly plug leaks. It can not only solve the problem of leakage in many small ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B28/04C04B111/27
CPCC04B28/04C04B28/065C04B2111/27C04B18/146C04B24/04C04B24/26C04B14/28C04B24/383C04B24/40C04B2103/302C04B2103/0071
Inventor 魏伟吴靖曹庆超丁烨胡蕾阳张轩凝闫小梅
Owner 西卡(上海)管理有限公司
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