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Thermal insulation anti-crack foaming cement

A foaming cement and foaming agent technology, applied in the field of cement, can solve the problems of poor compressive performance and easy cracking of foamed cement, and achieve the goals of avoiding excessively long setting time, uniform and fine foam, and shortening the setting and hardening time Effect

Inactive Publication Date: 2018-12-21
怀宁建国混凝土制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal conductivity of foamed cement is generally 0.1-0.2W / m·k, and the thermal conductivity can be reduced by adjusting the cement formula or insulation materials, but generally it is only reduced to about 0.08W / m·k, and the resistance of foamed cement Low pressure performance, easy to crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of thermal insulation anti-cracking foamed cement, its raw material comprises by weight: 100 parts of ordinary Portland cement, 1.15 parts of foaming agent, 9 parts of thermal insulation material, 0.025 part of sodium tripolyphosphate, 0.5 part of lauroyl diethanolamine, 2.8 parts of coagulant, 5.5 parts of silicone waterproofing agent, 6 parts of reinforcing agent, and 37.5 parts of water, wherein the reinforcing agent is nano-titanium dioxide, modified bamboo fiber, carboxymethyl cellulose.

Embodiment 2

[0022] A kind of thermal insulation anti-cracking foamed cement, its raw material comprises by weight: 100 parts of ordinary portland cement, 1 part of foaming agent, 10 parts of thermal insulation material, 0.02 part of sodium tripolyphosphate, 0.6 part of lauroyl diethanolamine, 2.6 parts of coagulant, 6 parts of silicone waterproofing agent, 5 parts of strengthening agent, 40 parts of water, wherein, strengthening agent is the modified bamboo fiber of nano-titanium dioxide, length 5-6mm, carboxymethyl cellulose, wherein, nano-titanium dioxide , The weight ratio of modified bamboo fiber and carboxymethyl cellulose is 0.7:2:2;

[0023] In the preparation process of the modified bamboo fiber, the bamboo fiber was boiled in boiling water for 1 hour, then bleached with hydrogen peroxide for 15 minutes, washed with water, dried in the air, combed and laid flat, sprayed with distearoyloxyisopropyl aluminate melt, Dry in air, heat up to 90°C, keep warm for 18 hours, and pulverize t...

Embodiment 3

[0025] A kind of thermal insulation anti-cracking foamed cement, its raw material comprises by weight: 100 parts of ordinary Portland cement, 1.25 parts of foaming agent, 8 parts of thermal insulation material, 0.03 part of sodium tripolyphosphate, 0.4 part of lauroyl diethanolamine, 3 parts of coagulant, 5 parts of organic silicon waterproofing agent, 7 parts of reinforcing agent, 35 parts of water, wherein, reinforcing agent is nano-titanium dioxide, the length is the modified bamboo fiber of 5-6mm, carboxymethyl cellulose, wherein, nano-titanium dioxide , The weight ratio of modified bamboo fiber and carboxymethyl cellulose is 0.5:3:1;

[0026] In the preparation process of the modified bamboo fiber, the bamboo fiber was boiled in boiling water for 2 hours, then bleached with hydrogen peroxide for 10 minutes, washed with water, dried in the air, combed and laid flat, sprayed with distearoyloxyisopropyl aluminate melt, Dry in air, heat up to 100°C, keep warm for 15 hours, an...

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Abstract

The invention discloses thermal insulation anti-crack foaming cement, which is prepared from the following raw materials in parts by weight: 100 parts of ordinary Portland cement, 1-1.25 parts of a foaming agent, 8-10 parts of a thermal insulation material, 0.02-0.03 part of sodium tripolyphosphate, 0.4-0.6 part of lauroyl diethanolamine , 2.6-3 parts of a coagulant, 5-6 parts of an organosiliconwaterproofing agent, 5-7 parts of a reinforcing agent and 35-40 parts of water, wherein the reinforcing agent is prepared from nano-titanium dioxide, modified raw bamboo fibers and carboxymethyl cellulose. The thermal insulation anti-crack foaming cement is low in thermal conductivity coefficient, good in thermal insulation effect and good in crack resistance.

Description

technical field [0001] The invention relates to the technical field of cement, in particular to a heat-preserving and anti-cracking foamed cement. Background technique [0002] Foamed cement is mainly formed by introducing air bubbles through chemical or physical foaming, uniformly mixing the foam and cement slurry, and then solidifying and hardening. Foamed cement is a new type of lightweight thermal insulation material that contains a large number of closed pores. The thermal conductivity of foamed cement is generally 0.1-0.2W / m·k, and the thermal conductivity can be reduced by adjusting the cement formula or insulation materials, but generally it is only reduced to about 0.08W / m·k, and the resistance of foamed cement Compressive performance is not high, easy to crack. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a thermal insulation and anti-cracking foamed cement, which has low thermal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/10C04B111/40
CPCC04B28/04C04B38/10C04B2111/40C04B2201/32C04B2201/50C04B22/16C04B24/122C04B2103/12C04B24/42C04B22/06C04B18/265C04B24/383C04B14/024C04B18/141C04B24/20C04B24/12
Inventor 刘三宝
Owner 怀宁建国混凝土制品有限责任公司
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