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Polymer waterproof mortar

A waterproof mortar and polymer technology, applied in the field of polymer waterproof mortar, can solve the problems of low pumpability and thixotropic performance, difficult construction, high relative cost, etc., achieve excellent waterproof performance, improve pumpability, and reduce dosage Effect

Inactive Publication Date: 2013-09-18
江苏蓝圈新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polymer waterproof dry powder mortar is a dry powder mortar made of high molecular polymer, inorganic silicate and fine sand as the main raw materials. Although the cost is lower than that of emulsion mortar, the amount of high molecular polymer is generally the amount of cement 10-30% of that, the relative cost is still relatively high; and when a large number of applications are mixed with water, the pumping performance and thixotropic performance are low, and it is not easy to construct

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Polymer waterproof mortar: 250 parts of ordinary Portland cement (PO42.5, PO52.5 can be used), 350 parts of quartz sand, 50 parts of fly ash, 5 parts of defoamer (polymethylcyclotetrasiloxane) , 8 parts of redispersible latex powder (ethylene-vinyl acetate copolymer latex powder), 3 parts of fluidizing agent (polyethylene glycol, diethylene glycol monobutyl ether can be used), thixotropic agent (ethylene bisstearic acid amide ) 8 parts, water-repellent agent (fatty acid metal salt, silane can be) 1 part.

Embodiment 2

[0012] Polymer waterproof mortar: 400 parts of ordinary Portland cement, 550 parts of quartz sand, 150 parts of fly ash, 15 parts of defoamer, 35 parts of redispersible latex powder, 8 parts of fluidizer, 15 parts of thixotropic agent, 5 parts of water enhancer.

Embodiment 3

[0014] Polymer waterproof mortar: 330 parts of ordinary Portland cement, 450 parts of quartz sand, 100 parts of fly ash, 10 parts of defoamer, 20 parts of redispersible latex powder, 5 parts of fluidizer, 10 parts of thixotropic agent, 3 parts of water enhancer.

[0015] Mix the raw materials in a mixer for 10 minutes to make a dry powder mortar, add an appropriate amount of water (not exceeding 5% of the total amount) and stir mechanically or with a low-speed stirrer until it is uniform without agglomeration. The paint after mixing refers to JC / T984-2005 According to the test, the 7-day impermeability pressure is above 1.6MPa, and the bond strength with the cement base surface is above 1.3MPa; the 28d impermeability pressure is above 2.0MPa, and the bond strength with the cement base surface is above 1.5MPa.

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Abstract

The invention discloses a polymer waterproof mortar which comprises the following ingredients in parts by weight: 250-400 parts of ordinary Portland cement, 350-550 parts of quartz sand, 50-150 parts of pulverized coal, 5-15 parts of defoaming agent, 8-35 parts of redispersible latex powder, 3-8 parts of fluidizing agent, 8-15 parts of thixotropic agent, and 1-5 parts of a water-increasing agent. The polymer waterproof mortar has excellent waterproof property, and is greater than 1.0MPa in 7d osmotic-resistant pressure, greater than 1.0MPa in binding strength, greater than 1.5MPa in 28d osmotic-resistant pressure, and greater than 1.2MPa in binding strength, which all can meet the national industry standard.

Description

technical field [0001] The invention relates to a polymer waterproof mortar. Background technique [0002] Polymer waterproof mortar is mainly used for anti-seepage treatment and leakage repair of basements of industrial and civil buildings, repair of leakage on building roofs and internal and external walls, waterproof and anti-seepage of various pools and swimming pools, civil air defense projects, tunnels, granaries, Waterproof and anti-seepage of family bathrooms, kitchens, workshops, and closed balconies; and concrete repair construction. At present, there are two types of polymer waterproof mortar, one-component dry powder mortar and two-component emulsion mortar. Due to the relatively high cost of two-component emulsion mortar, and it is not easy to store and transport, it is gradually replaced by dry powder mortar. [0003] Polymer waterproof dry powder mortar is a dry powder mortar made of high molecular polymer, inorganic silicate and fine sand as the main raw...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B24/08C04B24/42C04B111/28
Inventor 王兴文王丽娟徐荣平
Owner 江苏蓝圈新材料股份有限公司
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