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Preparation method of mortar with efficient water-resisting, moisture-resisting expanding, crack-resisting and seepage preventing functions

A mortar and high-efficiency technology, applied in the field of building material manufacturing, can solve the problems of not reaching the designed service life, damage, cracking and water seepage of building materials, etc.

Active Publication Date: 2015-05-13
广州市盈坚建材科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains Cl-,,,,, and K+ ions are too heavy, and when added to the cement, it reacts with the active silica in the concrete to form an alkali silicate gel and cause the concrete to expand and crack. This is a common problem in engineering. Alkali-aggregate reaction, while accelerating the corrosion of steel bars, resulting in cracking and water seepage of building materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing mortar with high-efficiency waterproof, moisture-proof, expansion-proof, anti-crack and anti-seepage functions, characterized in that:

[0029] Weigh 282g of raw cement, 18g of cement composite additives, 750g of sand, 4g of polypropylene fiber, and 3g of naphthalene-based water reducer; put the above raw materials into a conical double-helix mixer according to the proportion and mix them evenly. The mixing time is 50 minutes. After getting the mortar;

[0030] The preparation method steps of the cement composite additive are:

[0031] Step (1): According to 32 parts of alumina clinker, 8 parts of calcined alunite, 2 parts of zinc sulfate, 12 parts of dickite, 12 parts of attapulgite clay, 12 parts of fly ash, 2 parts of zeolite powder, diatomaceous earth 3 parts, 4 parts of bentonite, 2 parts of methyl cellulose, 0.7 part of sodium sulfite, 0.7 part of quicklime, 0.4 part of calcium fluoride to prepare raw materials,

[0032] Step (2): 32 parts...

Embodiment 2

[0036] A method for preparing mortar with high-efficiency waterproof, moisture-proof, expansion-proof, anti-crack and anti-seepage functions, characterized in that:

[0037] Weigh 282g of raw cement, 18g of cement composite additives, 750g of sand, 4g of polypropylene fiber, and 3g of naphthalene-based water reducer; put the above raw materials into a conical double-helix mixer according to the proportion and mix them evenly. The mixing time is 50 minutes. After getting the mortar;

[0038] The preparation method steps of the cement composite additive are:

[0039] Step (1): According to 30 parts of alumina clinker, 10 parts of calcined alunite, 5 parts of zinc sulfate, 20 parts of dickite, 20 parts of attapulgite clay, 10 parts of fly ash, 5 parts of zeolite powder, diatomaceous earth 2 parts, 5 parts of bentonite, 1 part of methyl cellulose, 1 part of sodium sulfite, 1 part of quicklime, 0.2 part of calcium fluoride to prepare raw materials,

[0040] Step (2): 30 parts of ...

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PUM

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Abstract

The invention discloses a preparation method of mortar with efficient water-resisting, moisture-resisting expanding, crack-resisting and seepage preventing functions. The preparation method is characterized by comprising the following steps: weighing raw materials cement, a cement compound additive, sands, polypropylene fibers and a naphthalene water reducer; putting the raw materials in a cone-shaped double helix stirrer in proportion, uniformly stirring for 50 minutes and stirring to obtain the mortar. The mortar disclosed by the invention has the efficient water-resisting, moisture-resisting, expanding, crack-resisting and seepage preventing functions and is free of corrosive action to reinforcing steel bars.

Description

technical field [0001] The invention relates to a preparation method of mortar, that is, a preparation method of mortar with high-efficiency waterproof, moisture-proof, expansion-proof, crack-proof and seepage-proof functions, and belongs to the field of building material manufacturing. Background technique [0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains Cl-,,,,, and K+ ions are too heavy, and when added to the cement, it reacts with the active silica in the concrete to form an alkali silicate gel and cause the concrete to expand and crack. This is a common problem in engineering. Alkali-aggregate reaction also accelerates the corrosion of steel bars, resulting in cracking and water seepage of building ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/06C04B16/06
Inventor 黄小仙
Owner 广州市盈坚建材科技发展有限公司
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