Cement based penetrative crystallized mortar waterproofing agent and its preparation

A penetrating crystallization, cement-based technology, applied in the field of cement mortar waterproofing admixtures for construction, can solve the problems of short validity period of waterproof layer, difficulty in permanent waterproofing, etc., and achieve the effect of improving crack resistance and deformation ability and improving toughness.

Inactive Publication Date: 2004-02-04
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Various types of waterproofing agents currently used in construction mortar mainly include: metal soaps, sodium silicates, inorganic aluminum salts, organic silicon and other waterproofing agents, but they more or less ha

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  • Cement based penetrative crystallized mortar waterproofing agent and its preparation

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Embodiment Construction

[0039] According to the above-mentioned ratio and the above-mentioned preparation method, high-performance cement-based permeable crystalline mortar waterproofing agents with slightly different performance requirements can be prepared for different occasions.

[0040] The dosage of the waterproofing agent is 5-7% (mass ratio) of cement in the mortar, and the water-cement ratio is controlled at 0.35-0.5. After weighing according to the proportion, stir with a mixer according to the regulations, and the stirring time is not less than 3 minutes to ensure that it is fully stirred and evenly mixed. The thickness of the mortar waterproof layer is generally 20-25mm. It must be scraped and pressed in 2-3 times, each time with a thickness of about 7-9mm. It can also be carried out according to the waterproof design requirements. After the mortar is added with water, it forms a thixotropic, fluid slurry, and the active ingredients penetrate into the interior of the concrete and r...

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Abstract

A penetration and crystallization type cement-base water-proofing agent for mortar is prepared from high-Al clinker, siloxane emulsion, dodecahydrated aluminium potassium sulfate, beta-methyl naphthalenesulfonate, calcium hydroxide, bentone, sodium silicate, and polypropylene fibres through proportional mixing. Its advantage is high effect to prevent water leakage, reduce water, increase compactness and strength, and decrease cracking.

Description

technical field [0001] The invention relates to a waterproof admixture for building cement mortar. Specifically, it relates to a high-efficiency cement-based permeable crystalline mortar used for waterproofing projects such as interior and exterior walls of building structures, basements, basements, tunnels, and civil air defenses, as well as porous masonry structures and various decorative layers for moisture-proof, leak-proof, and waterproof waterproofing agent. Background technique [0002] At present, there are many housing constructions in our country, whether it is roofs, basements, toilets and bathrooms, and exterior walls, there will be various cracks, and there are different degrees of water leakage. The causes of house leakage are more complicated, involving many factors such as design, materials, construction and management. According to the survey results, in the causes of water leakage in houses, material factors accounted for 20%, design factors accounted for...

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Application Information

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IPC IPC(8): C04B22/14C04B24/40
Inventor 蒋正武孙振平
Owner TONGJI UNIV
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