Thermal insulation mortar with lower thermal conductivity coefficient and preparation method thereof

A technology of thermal conductivity and thermal insulation mortar, applied in the field of building materials, can solve the problems such as the thermal conductivity of thermal insulation mortar and large pores that cannot be further reduced, and achieve the effect of high use value and high strength

Inactive Publication Date: 2018-11-30
芜湖市颂晖商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Expanded perlite and its products are the earliest thermal insulation materials developed in my country with a wide range of applications. In order to solve the problem of large pores between expanded perlite particles, various natural fibers or artificial fibers and expanded perlite particles are mainly used. To reduce the thermal conductivity, but can not further reduce the thermal conductivity of the insulation mortar

Method used

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  • Thermal insulation mortar with lower thermal conductivity coefficient and preparation method thereof

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Embodiment 1

[0021] This embodiment provides a thermal insulation mortar with low thermal conductivity, which is made of the following raw materials: 300 parts of Portland cement, 210 parts of river sand, 200 parts of construction waste, 150 parts of talc, 15 parts of asphalt, heat insulation 50 parts of aggregate, 7 parts of mineral wool, 10 parts of lignocellulose, 5 parts of polyethylhydroxysiloxane emulsion, 4 parts of sulfonated melamine; the thermal insulation aggregate is composed of expanded perlite with a weight ratio of 1:0.2 and hollow glass microspheres.

[0022] The preparation method of the thermal insulation mortar with lower thermal conductivity in this embodiment comprises the following steps:

[0023] (1) Pitch and talc are put into 0.1% sodium chloride solution by mass ratio and immersed for 7 hours, taken out and dried, and crushed to 200 mesh;

[0024] (2) Calcinate river sand and construction waste residue at 700°C for 4 hours, take out and pulverize, add mineral woo...

Embodiment 2

[0027] This embodiment provides a thermal insulation mortar with a low thermal conductivity, which is made of the following raw materials: 250 parts of Portland cement, 240 parts of river sand, 160 parts of construction waste, 170 parts of talc, 10 parts of asphalt, heat insulation 80 parts of aggregate, 6 parts of mineral wool, 12 parts of lignocellulose, 3 parts of water-based silane, and 5 parts of polyethylene glycol; Beads composition.

[0028] The preparation method of the thermal insulation mortar with lower thermal conductivity in this embodiment comprises the following steps:

[0029] (1) Asphalt and talc are put into 0.1% sodium chloride solution by mass ratio and immersed for 8 hours, taken out and dried, and pulverized to 200 mesh;

[0030] (2) Calcinate river sand and construction waste residue at 600°C for 6 hours, take out and pulverize, add mineral wool, lignocellulose, and heat-insulating aggregate to stir and mix;

[0031] (3) Add the materials obtained in ...

Embodiment 3

[0033] This embodiment provides a thermal insulation mortar with a low thermal conductivity, which is made of the following raw materials: 350 parts of Portland cement, 180 parts of river sand, 240 parts of construction waste, 120 parts of talc, 20 parts of asphalt, heat insulation 30 parts of aggregate, 9 parts of mineral wool, 8 parts of lignocellulose, 8 parts of titanate, and 3 parts of polyethylene glycol; the heat-insulating aggregate is composed of expanded perlite and hollow glass with a weight ratio of 1:0.3 microbead composition.

[0034] The preparation method of the thermal insulation mortar with lower thermal conductivity in this embodiment comprises the following steps:

[0035] (1) Asphalt and talc are put into 0.1% sodium chloride solution by mass ratio and immersed for 8 hours, taken out and dried, and pulverized to 200 mesh;

[0036] (2) Calcinate river sand and construction waste residue at 600°C for 6 hours, take out and pulverize, add mineral wool, lignoc...

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Abstract

The present invention discloses a thermal insulation mortar with a lower thermal conductivity coefficient and belongs to the technical field of building materials. The thermal insulation mortar is prepared from the following raw materials: 250-350 parts of silicate cement, 180-240 parts of river sand, 160-240 parts of construction waste residues, 120-170 parts of talc, 10-20 parts of asphalt, 30-80 parts of thermal insulation aggregate, 6-9 parts of mineral wool, 8-12 parts of lignocellulose, 3-8 parts of a water resistant agent and 3-5 parts of an admixture. The thermal insulation aggregate is composed of expanded perlite and hollow glass micro-beads in a weight ratio of 1:(0.1-0.3). The hollow glass micro-beads are compounded with the expanded perlite and mineral wool. The prepared thermal insulation mortar has a thermal conductivity coefficient obviously lower than that of thermal insulation mortar compounded by the expanded perlite and mineral wool, and also has higher strength andhigher use value.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a thermal insulation mortar with low thermal conductivity and a preparation method thereof. Background technique [0002] In recent years, building energy conservation has been booming and has become a hot issue and an international trend. In my country, with the rapid development of economy, the expansion of housing construction, the continuous acceleration of urbanization and the improvement of people's living standards, buildings have become a major energy consumer in our country. At present, among the more than 40 billion square meters of urban and rural buildings in China, only 360 million square meters of houses are energy-saving buildings, 99% of which are high-energy-consuming buildings, and more than 95% of new housing constructions are still high-energy-consuming buildings. According to statistics, in the building heat loss, the heat loss through the externa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/20C04B2201/32C04B2201/50C04B14/06C04B18/16C04B14/042C04B14/46C04B24/36C04B18/26C04B14/185C04B14/22C04B22/124C04B24/16C04B24/42C04B24/28C04B24/40
Inventor 汪琦郭元
Owner 芜湖市颂晖商贸有限公司
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