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Insulation block and method of using thermal insulation mortar to prepare insulation block

A technology of thermal insulation blocks and thermal insulation mortar, which is applied to building components, building materials, buildings, etc., can solve problems such as poor thermal performance, and achieve the effects of improving thermal insulation capacity, good mechanical properties, durability, and excellent thermal insulation performance

Inactive Publication Date: 2010-07-21
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the original hollow block has good mechanical properties and durability, its thermal performance is poor, and it is difficult to meet the requirement of saving energy by 50%. In addition to the original good mechanical properties and durability, it can greatly improve the thermal insulation performance and meet the requirements of current construction projects for thermal insulation
At present, there are no reports on this technology at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1, MU20 hollow blocks are filled with polyphenylene granule thermal insulation mortar, the thermal insulation mortar is 32.78% of ordinary Portland cement, 1.64% of fly ash, 1.64% of slag powder, 19.67% of polyphenylene granules, and polyvinyl acetate latex powder 0.82%, 0.16% cellulose ether, 0.16% polycarboxylate superplasticizer, 0.003% sodium dodecyl sulfonate, 0.49% sodium methyl siliconate and 42.81% water, the hollow rate is 40% , the compressive strength is 21MPa, the bending tensile strength is 0.40MPa, the shear strength is 0.40MPa, and the modulus of elasticity is 1.6×10 3 MPa, the shear modulus is 700MPa, and the linear expansion coefficient is 0.02%. The hardened insulation block has no change in shape, its compressive strength is 21MPa, bending tensile strength is 0.40MPa, and shear strength is 0.40MPa. The modulus of elasticity is 1.6×10 3 MPa, the shear modulus is 700MPa, the linear expansion coefficient is 0.02%, and the heat transfer coefficie...

Embodiment 2

[0033] Example 2, MU25 hollow block is filled with expanded perlite particle thermal insulation mortar, the thermal insulation mortar is 30.29% of ordinary Portland cement, 2.27% of fly ash, 2.27% of slag powder, 24.23% of expanded perlite particle, polyvinyl acetate Latex powder 0.76%, cellulose ether 0.003%, polycarboxylate superplasticizer 0.30%, sodium dodecylsulfonate 0.003%, sodium methyl siliconate 0.45% and water 39.32%, the hollow rate 40%, the compressive strength is 26MPa, the bending tensile strength is 0.50MPa, the shear strength is 0.50MPa, and the modulus of elasticity is 1.8×10 3 MPa, the shear modulus is 750MPa, and the linear expansion coefficient is 0.02%. The hardened insulation block has no change in shape, its compressive strength is 26MPa, bending tensile strength is 0.50MPa, and shear strength is 0.50MPa. The modulus of elasticity is 1.8×10 3 MPa, the shear modulus is 750MPa, the linear expansion coefficient is 0.02%, and the heat transfer coefficient ...

Embodiment 3

[0034] Example 3, MU30 hollow blocks are filled with rubber granule thermal insulation mortar, the thermal insulation mortar is 26.66% of ordinary Portland cement, 2.67% of fly ash, 2.67% of slag powder, 26.66% of rubber granules, and 1.12% of polyvinyl acetate latex powder , 0.003% cellulose ether, 0.27% polycarboxylate water reducer, 0.004% sodium dodecyl sulfonate, 0.40% sodium methyl siliconate and 39.98% water. The compressive strength is 31MPa, the bending tensile strength is 0.55MPa, the shear strength is 0.55MPa, and the modulus of elasticity is 2×10 3 MPa, the shear modulus is 800MPa, and the linear expansion coefficient is 0.02%. The hardened insulation block has no change in shape, its compressive strength is 31MPa, bending tensile strength is 0.55MPa, and shear strength is 0.55MPa. The modulus of elasticity is 2×10 3 MPa, the shear modulus is 800MPa, the linear expansion coefficient is 0.02%, and the heat transfer coefficient is 0.25W / (m 2 · K).

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Abstract

The invention relates to an insulation block and a method of using thermal insulation mortar to prepare the insulation block. The insulation block comprises a hollow block, wherein an insulation block is filled in the hollow part of the hollow block. The preparation method of the insulation block comprises the following steps: firstly, preparing thermal insulation mortar with good flowing property; secondly, filling the thermal insulation mortar in the hollow part of the hollow block; and finally, connecting the hardened thermal insulation mortar with the hollow block to obtain the insulation block. The thermal insulation mortar is one kind of cement mortar, wherein the aggregate is selected from light particles with low coefficient of thermal conductivity. By using the method of the invention, the insulation block with 5-40MPa of compression strength, 0.20-0.70MPa of bending tensile strength, 0.20-0.70MPa of shear strength, 1*10<3>-3*10<3>MPa of elastic modulus, 500-1000MPa of shear modulus, 0-0.04% of coefficient of linear expansion and 0.20-0.40W / (m2.K) of heat transfer coefficient can be prepared and the insulation block can be used in various thermal insulation works of buildings.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a method for preparing thermal insulation blocks. Background technique [0002] Since entering the 21st century, with the rapid development of my country's real estate industry, the demand for wall materials is increasing day by day. At the same time, the government has been calling on all industries to "energy saving" while the economy is developing rapidly. The "Residential Building Thermal Engineering and Heating Energy Saving Design Standards" formulated requires 50% energy saving for building envelope structures. Therefore, the development and application of thermal insulation wall materials are very important. [0003] Although the original hollow block has good mechanical properties and durability, its thermal performance is poor, and it is difficult to meet the requirement of saving energy by 50%. In addition to the original good mechanical properties and durab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C1/00E04C1/40C04B28/04
Inventor 孙振平陈柯柯
Owner TONGJI UNIV
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