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Energy-saving phase-transformation anti-cracking polymer special mortar and preparation method thereof

A kind of polymer and special technology, applied in the field of building materials, can solve the problems of increasing cost and not effectively improving the anti-cracking performance of mortar, and achieve the effects of low cost, improved storage stability and good anti-aging performance

Inactive Publication Date: 2016-12-21
绍兴职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of polymer can effectively improve the compressive and flexural strength of mortar, the crack resistance of mortar cannot be effectively improved, and the addition of polymer greatly increases the cost of mortar preparation

Method used

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  • Energy-saving phase-transformation anti-cracking polymer special mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An energy-saving phase-change anti-crack polymer special mortar, comprising the following components in parts by weight:

[0036] 20 parts of cement, 40 parts of river sand,

[0037] 30 parts of fly ash, 3 parts of carboxy-modified styrene-butadiene latex,

[0038] 4 parts of epoxy resin modified styrene-acrylic latex, 10 parts of paraffin wax,

[0039] 10 parts of expanded perlite, 3 parts of polypropylene fiber,

[0040] 1 part of water reducer, 0.5 part of retarder,

[0041] 2 parts of silane coupling agent, 40 parts of deionized water;

[0042] Its preparation method comprises the following steps:

[0043] (1) Mix expanded perlite and paraffin evenly in a vacuum reactor at 120°C, then slowly open the vent valve, reduce the vacuum in the vacuum reactor to normal pressure, and let it stand for 1 hour to obtain expanded pearls adsorbed with paraffin rock;

[0044] (2) Mix the expanded perlite adsorbed with paraffin, polypropylene fiber, silane coupling agent, car...

Embodiment 2

[0047] An energy-saving phase-change anti-crack polymer special mortar, comprising the following components in parts by weight:

[0048] 40 parts of cement, 60 parts of river sand,

[0049] 50 parts of fly ash, 8 parts of carboxy-modified styrene-butadiene latex,

[0050] 10 parts of epoxy resin modified styrene-acrylic latex, 18 parts of paraffin wax,

[0051] 20 parts of expanded perlite, 5 parts of polypropylene fiber,

[0052] 2 parts of water reducer, 1.2 parts of retarder,

[0053] 3 parts of silane coupling agent, 60 parts of deionized water;

[0054] Its preparation method comprises the following steps:

[0055] (1) Mix expanded perlite and paraffin in a vacuum reactor at 200°C, then slowly open the vent valve, reduce the vacuum in the vacuum reactor to normal pressure, and let it stand for 2 hours to obtain expanded pearls adsorbed with paraffin rock;

[0056] (2) Mix the expanded perlite adsorbed with paraffin, polypropylene fiber, silane coupling agent, carbox...

Embodiment 3

[0059] An energy-saving phase-change anti-crack polymer special mortar, comprising the following components in parts by weight:

[0060] 25 parts of cement, 45 parts of river sand,

[0061] 35 parts of fly ash, 4 parts of carboxy-modified styrene-butadiene latex,

[0062] 5 parts of epoxy resin modified styrene-acrylic latex, 12 parts of paraffin wax,

[0063] 12 parts of expanded perlite, 3.5 parts of polypropylene fiber,

[0064] 1.2 parts of water reducer, 0.7 parts of retarder,

[0065] 2.2 parts of silane coupling agent, 45 parts of deionized water;

[0066] Its preparation method comprises the following steps:

[0067] (1) Mix expanded perlite and paraffin evenly in a vacuum reactor at 140°C, then slowly open the vent valve, reduce the vacuum in the vacuum reactor to normal pressure, and let it stand for 1.2 hours to obtain an expanded wax adsorbed with paraffin. Perlite;

[0068](2) Mix the expanded perlite, polypropylene fiber, silane coupling agent, carboxyl-mod...

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Abstract

The invention discloses an energy-saving phase-transformation anti-cracking polymer special mortar comprising the following components in parts by weight: 20-40 parts of cement, 40-60 parts of river sand, 30-50 parts of fly ash, 3-8 parts of a carboxyl modified butyl benzene latex, 4-10 parts of an epoxy resin modified styrene-acrylic latex, 10-18 parts of paraffin, 10-20 parts of expanded perlite, 3-5 parts of a polypropylene fiber, 1-2 parts of a water reducing agent, 0.5-1.2 parts of a set retarder, 2-3 parts of a silane coupling agent, and 40-60 parts of deionized water. The invention also discloses a preparation method of the polymer special mortar. The polymer special mortar has the advantages of good anti-cracking performance, excellent water resistance, excellent high-temperature resistance, good mechanical properties, low preparation cost and no harm to the environment.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to an energy-saving phase-change anti-crack polymer special mortar. Background technique: [0002] At present, my country's energy supply and demand are tense, and the contradiction is becoming increasingly prominent. Building consumption accounts for a large proportion of social energy consumption. It is of great significance to implement building energy conservation and develop new high-performance building energy-saving materials. Saving building energy is conducive to protecting energy resources, ensuring energy security, and developing the national economy. Building heating, air conditioning or other surface energy use, whether coal, electricity or natural gas, will produce air pollution to varying degrees and produce greenhouse gases such as carbon dioxide. Advocating building energy conservation is also conducive to the improvement of the environment. At the same time, th...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/27C04B2111/343C04B18/08C04B24/26C04B14/185C04B24/08C04B16/0633C04B2103/302C04B2103/22C04B24/40
Inventor 汤薇沈龙田芳
Owner 绍兴职业技术学院
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