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A platform for research: civil engineering, architecture and urbanism
Heat-preserving mortar with low thermal conductivity
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.
Heat-preserving mortar with low thermal conductivity
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.
Heat-preserving mortar with low thermal conductivity
WANG JIANWU (author)
2016-02-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Thermal Conductivity of Concrete Mortar
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