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Cement-based composite anti-crack binding dry mortar and preparation and application methods thereof

A dry powder mortar, cement-based technology, applied in the field of building materials, can solve the problems of limited application of polyethylene polypropylene fiber composite waterproof system, high shrinkage and easy cracking, low adhesive force of adhesive, etc., and achieves good waterproof and impermeability effect, The effect of less pollutants and industrial waste and strong adhesion

Pending Publication Date: 2018-08-17
山东天汇防水股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cement mortar on the market has complex production process, a lot of industrial waste and is difficult to deal with, and the adhesive has low cohesive force, poor water resistance, high shrinkage and easy to crack in construction application, and its quality cannot be guaranteed by on-site preparation. As a result, the application of polyethylene polypropylene fiber composite waterproof system is subject to certain restrictions

Method used

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  • Cement-based composite anti-crack binding dry mortar and preparation and application methods thereof

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preparation example Construction

[0047] The preparation method of cement-based composite anti-cracking bonded dry powder mortar comprises the following steps:

[0048] (1) Weigh ordinary Portland cement, quartz sand, anti-crack fiber, cellulose ether, latex powder, and fly ash according to the aforementioned mass ratio;

[0049] (2) Put the weighed raw materials into the mixer for mixing, through sufficient mechanical stirring, after mixing evenly, the product is obtained.

[0050] The method for using the cement-based composite anti-cracking bonded dry powder mortar comprises the following steps:

[0051] (1) Accurately weigh the finished anti-cracking adhesive dry powder mortar of the present invention and the corresponding mass fraction of water, water: anti-cracking adhesive dry powder mortar is (100-200): 1000;

[0052] (2) After adding water to the mixer, turn on the mixer, and add the weighed anti-cracking adhesive dry powder mortar into the mixer at a uniform speed, and it can be used after mixing ev...

Embodiment 1

[0053] Embodiment 1, a kind of cement-based composite anti-crack bonding dry powder mortar, according to the quality of 42.5 grade ordinary Portland cement 300, quartz sand 642, anti-cracking fiber 0.5, cellulose ether 2.5, latex powder 30, fly ash 25 It is prepared from the ratio, and the amount of water added is 200 parts by mass when used. See Table 1.

Embodiment 2

[0054] Example 2, a cement-based composite anti-cracking bonding dry powder mortar, according to the quality of 42.5 grade ordinary Portland cement 300, quartz sand 649, anti-cracking fiber 0.4, cellulose ether 2.6, latex powder 25, fly ash 23 It is prepared from the ratio, and the amount of water added is 150 parts by mass when used. See Table 1.

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Abstract

The invention discloses cement-based composite anti-crack binding dry mortar and preparation and application methods thereof. The cement-based composite anti-crack binding dry mortar comprises, by mass, 300-400 parts of ordinary Portland cement, 600-700 parts of quartz sand, 0.3-0.6 part of anti-crack fiber, 2-3 parts of cellulose ether, 20-30 parts of latex powder and 20-25 parts of fly ash. Thepreparation method includes the steps of firstly, weighing the raw materials according to the mass; secondly, evenly mixing the weighed raw materials in an agitator to obtain the cement-based composite anti-crack binding dry mortar. The application method includes the steps of firstly, weighing the cement-based composite anti-crack binding dry mortar and water of corresponding mass, wherein the mass ratio of the cement-based composite anti-crack binding dry mortar to the water is (100-200):100; secondly, evenly mixing for use. The cement-based composite anti-crack binding dry mortar is convenient to operate, easy to control, capable of being used after being sufficiently mixed with an appropriate amount of water, high in binding force, good in water resistance, good in crack resistance, good in permeability resistance and the like.

Description

technical field [0001] The invention relates to building materials, in particular to a cement-based composite anti-cracking bonded dry powder mortar and its preparation and use methods. Background technique [0002] Polyethylene polypropylene composite waterproof membrane is a new type of waterproof membrane made of raw polyethylene synthetic polymer materials, adding anti-aging agents, stabilizers, adhesion promoters, etc. Coil. The coil is usually prepared with cement mortar with polyvinyl alcohol glue containing 5% to 15% cement by weight as a binder to bond with the base layer. However, the existing cement mortar on the market has complex production process, a lot of industrial waste and is difficult to handle, and the adhesive has low cohesive force, poor water resistance, high shrinkage and easy to crack in construction application, and its quality cannot be guaranteed by on-site preparation. As a result, the application of polyethylene polypropylene fiber composite ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/20
CPCC04B28/04C04B2111/20C04B2111/27C04B2201/50C04B14/06C04B24/383C04B18/08C04B16/0633C04B24/2623
Inventor 曾三海王峰曾立王华周俊华王超田新博王治国孟宪良
Owner 山东天汇防水股份有限公司
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