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Inorganic thermal-insulation dry-mixed mortar and preparation method thereof

A dry powder mortar, inorganic thermal insulation technology, applied in the field of mortar, can solve the problems of compressive strength dry density, thermal conductivity difficult to take into account, volume shrinkage difficult to meet national standards, thermal conductivity difficult to meet the standard and other problems, achieve good frost resistance, reduce The probability of corner cracking and the effect of long service life

Inactive Publication Date: 2020-01-03
厦门高辰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to take into account the compressive strength, dry density, and thermal conductivity of the existing thermal insulation mortar, and the volume shrinkage rate is difficult to meet the national standard
Under the premise that the compressive strength and dry density meet the standard, the thermal conductivity is often difficult to meet the standard, which affects its thermal insulation performance.

Method used

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  • Inorganic thermal-insulation dry-mixed mortar and preparation method thereof
  • Inorganic thermal-insulation dry-mixed mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] S1: Weigh each material according to the following weight ratio: 45kg of gypsum powder, 0.05kg of gypsum retarder, 12kg of calcium carbonate powder, mix the weighed gypsum powder, gypsum retarder and calcium carbonate powder, and stir in a dry powder mortar mixer for 60S , to obtain premix A;

[0029] S2: Weigh each material according to the following weight ratio: hydroxypropyl methylcellulose ether 0.5kg, latex powder 2kg, lignin fiber 0.2kg, paraffin wax 3kg, silica gel powder 2kg, weigh the hydroxypropylmethylcellulose Cellulose ether, latex powder, and lignin fiber are mixed and added to premix A in step S1, and stirred for 180 seconds with a dry powder mortar mixer to obtain premix B;

[0030] S3: Add 30 kg of nano-ceramic microbeads into the premix B, and stir for 120 seconds with a dry powder mortar mixer to obtain the inorganic thermal insulation dry powder mortar.

Embodiment 2

[0032] S1: Take each material according to the following weight ratio: 50kg of gypsum powder, 0.15kg of gypsum retarder, 20kg of calcium carbonate powder, mix the weighed gypsum powder, gypsum retarder and calcium carbonate powder, and stir in a dry powder mortar mixer for 55S , to obtain premix A;

[0033] S2: Weigh each material according to the following weight ratio: hydroxypropyl methylcellulose ether 0.5kg, latex powder 3kg, lignin fiber 0.15kg, paraffin 4kg, silica gel powder 3kg, weigh the hydroxypropylmethylcellulose Cellulose ether, latex powder, and lignin fiber are mixed and then added to premix A in step S1, and stirred for 150 seconds with a dry powder mortar mixer to obtain premix B;

[0034] S3: Add 15 kg of nano-ceramic microbeads into the premix B, and stir for 180 seconds with a dry powder mortar mixer to obtain the inorganic thermal insulation dry powder mortar.

Embodiment 3

[0036] S1: Take each material according to the following weight ratio: 45kg of gypsum powder, 0.08kg of gypsum retarder, 16kg of calcium carbonate powder, mix the weighed gypsum powder, gypsum retarder and calcium carbonate powder, and stir with a dry powder mortar mixer 70S, obtain premix A;

[0037] S2: Then weigh each material according to the following weight ratio: 0.6kg of hydroxypropyl methylcellulose ether, 4kg of latex powder, 0.1kg of lignin fiber, 5kg of paraffin wax, and 4kg of silica gel powder. Cellulose ether, latex powder, and lignin fiber are mixed and added to premix A in step S1, and stirred for 120 seconds with a dry powder mortar mixer to obtain premix B;

[0038] S3: Add 30 kg of nano-ceramic microbeads into the premix B, and stir for 160 seconds with a dry powder mortar mixer to obtain the inorganic thermal insulation dry powder mortar.

[0039] The using method of inorganic thermal insulation dry powder mortar of the present invention is as follows:

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PUM

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Abstract

The invention provides inorganic thermal-insulation dry-mixed mortar. The inorganic thermal-insulation dry-mixed mortar is characterized by comprising, weight, 40-50 parts of gypsum powder, 0.05-0.15part of a gypsum retarder, 10-20 parts of calcium carbonate powder, 10-30 parts of nanometer ceramic microbeads, 0.4-0.6 part of hydroxypropyl methyl cellulose ether, 2-4 parts of latex powder, 0.1-0.3 part of lignin fibers and 3-5 parts of paraffin. The inorganic thermal-insulation dry-mixed mortar has compressive strength, dry density and heat conductivity coefficient.

Description

technical field [0001] The invention relates to an inorganic thermal insulation dry powder mortar and a preparation method thereof, belonging to the technical field of mortar. Background technique [0002] Insulation mortar is a kind of ready-mixed dry powder mortar made of various light materials as aggregate, cement as cement, mixed with some modified additives, and mixed by the production enterprise. It is mainly used for building exterior wall insulation , has the advantages of convenient construction and good durability. However, it is difficult to balance the compressive strength, dry density and thermal conductivity of the existing thermal insulation mortar, and the volume shrinkage rate is difficult to reach the national standard. Under the premise that the compressive strength and dry density meet the standards, the thermal conductivity is often difficult to meet the standards, which affects its thermal insulation performance. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B28/14C04B111/28
CPCC04B28/14C04B2111/40C04B2111/28C04B2201/20C04B2201/32C04B2201/50
Inventor 修海
Owner 厦门高辰新材料有限公司
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