Heat-preserving mortar with low thermal conductivity

A technology of thermal insulation mortar and low thermal conductivity, applied in the field of building materials, can solve the problems of low efficiency, poor product stability, and high damage rate of light aggregates, and achieve the effects of reducing thermal conductivity, reducing damage, and reducing transportation distance

Active Publication Date: 2016-02-10
TIANJIN WUSHUO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the conventional production of thermal insulation mortar generally adopts the production process of single mixer batch feeding
The advanta

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1

[0014] A low thermal conductivity thermal insulation mortar, which is composed of the following raw materials in mass percentage: 65% cement, 10% airgel particles, 2% cement modifier, 5% fiber, 3% polymer powder, 1% cellulose ether, 1% high-efficiency water reducing agent, 0.5% silicone water repellent, 2.5% lignocellulosic polymer rubber powder, 10% vitrified microbead light aggregate.

Example Embodiment

[0015] Example 2

[0016] A low thermal conductivity thermal insulation mortar, which is composed of the following raw materials in mass percentage: 60% gypsum, 8% airgel particles, 5% fiber, 2% polymer rubber powder, 2% cellulose ether, and 1% silicone water repellent , Lignocellulosic polymer rubber powder 2%, vitrified microbead light aggregate 20%.

Example Embodiment

[0017] Example 3

[0018] A low thermal conductivity thermal insulation mortar, which is composed of the following raw materials in mass percentage: 63% gypsum, 15% airgel particles, 5% fiber, 3% polymer rubber powder, 3% cellulose ether, and 1% silicone water repellent , Lignocellulosic polymer rubber powder 2%, vitrified microbead light aggregate 8%.

[0019] In the above examples, cement or gypsum is used as the cementitious material. When gypsum is used as the gelatinous material, cement modifiers and high-efficiency water reducers are not suitable; airgel particles are lightweight aggregates that reduce the thermal conductivity of materials, and cement modified The agent plays the role of improving the strength and flexibility of the cement, the fiber plays the role of crack resistance, the polymer powder can improve the strength and cohesion of the material, the cellulose ether plays the role of water retention and can improve the workability of the material; the high-ef...

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Abstract

The invention discloses a heat-preserving mortar with low thermal conductivity, and a production process thereof. The heat-preserving mortar is composed of the following raw materials: 40 to 90% of cement or gypsum, 1 to 20% of aerogel particles, 0 to 4% of cement-modifying agent, 3 to 15% of fiber, 1 to 15% of polymer emulsion powder, 0.5 to 5% of cellulose ether, 0 to 2% of a highly-efficient water-reducing agent, 0 to 1% of an organic silicone hydrophobic agent, 1 to 8% of lignocellulosic polymer emulsion powder and 0 to 40% of other lightweight aggregates; and the mortar is prepared by uniformly mixing the above-mentioned raw materials under complete stirring successively through three stages of stirring process. The heat-preserving mortar provided by the invention uses aerogel as a lightweight aggregate, so thermal conductivity of the mortar is greatly reduced; meanwhile, the adoption of the three-stage stirring process improves mixing uniformity of additives, enables fiber to be completely and uniformly mixed, reduces delivery distance of a fiber mixture and decreases damage of the lightweight aggregates, thereby reducing blockage and improving efficiency.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a low thermal conductivity and thermal insulation mortar. Background technique [0002] Inorganic thermal insulation mortar refers to low-density inorganic particles with thermal insulation performance as lightweight aggregate, using suitable cementitious materials and other multi-component compound admixtures, according to a certain proportion, a building insulation material prepared by a certain process , can be directly applied to the surface of the wall, it has light weight, thermal insulation and other functions compared with ordinary plastering mortar. [0003] In recent years, with the development of my country's building energy-saving business, the field of inorganic thermal insulation mortar has also made great progress, especially light aggregates, which have also developed from traditional expanded perlite to vitrified microbeads with better performance. . ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/14C04B38/08
Inventor 王剑武
Owner TIANJIN WUSHUO TECH CO LTD
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