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Heat-insulating sound-insulating dry-mixed mortar

A technology of dry powder mortar, thermal insulation and sound insulation, which is applied in the field of floor dry powder mortar, which can solve the problems of not being able to meet the effect of thermal insulation and reduce the height of building floors, and achieve the effects of avoiding hollow cracks, stable performance, and low thermal conductivity

Active Publication Date: 2016-12-14
深圳中技绿建科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sound insulation board needs to lay an additional layer of sound insulation board on the floor, which reduces the height of the building and cannot meet the thermal insulation effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0065] Cement: 30%; vitrified microbeads: 35%; elastic rubber powder: 14%; latex powder: 2%; clay: 7%; ash calcium: 5%; polypropylene fiber: 2%; cellulose ether: 3% ; Water reducing agent: 2%. The individual value evaluation of the impact sound insulation of the dry powder mortar under this formula is 53.0dB, which is 25.0dB lower than the single value evaluation (78.0dB) of the impact sound of the dry powder mortar under the basic formula. At the same time, the thermal conductivity is 0.050W / m.K, the final setting time is 280nin, and the 28d compressive strength is 7.6MPa. The dry powder mortar of this formula not only has good thermal insulation performance, but also has low thermal conductivity, high strength and good cracking performance, and has excellent building thermal insulation properties. Thermal effect, stable performance, small fluctuation, reasonable final setting time, excellent construction performance, bonding performance, non-combustibility, avoiding hollowin...

specific Embodiment 2

[0066]Cement: 40%; vitrified microbeads: 33%; elastic rubber powder: 13%; latex powder: 1.6%; clay: 6%; ash calcium: 4%; polypropylene fiber: 0.5%; cellulose ether: 0.9% ; Water reducing agent: 1%. The individual value evaluation of impact sound insulation of dry powder mortar under this formula is 55.0dB, which is 23.0dB lower than the single value evaluation (78.0dB) of dry powder mortar impact sound under the basic formula. At the same time, the thermal conductivity is 0.050W / m.K, the final setting time is 300nin, and the 28d compressive strength is 7.5MPa. The dry powder mortar of this formula not only has good thermal insulation performance, but also has low thermal conductivity, high strength and good cracking performance, and has excellent building thermal insulation properties. Thermal effect, stable performance, small fluctuation, reasonable final setting time, excellent construction performance, bonding performance, non-combustibility, avoiding hollowing and cracking...

specific Embodiment 3

[0067] Cement: 36.7%; Vitrified beads: 34%; Elastic rubber powder: 12.7%; Latex powder: 1.3%; Clay: 6%; Ash calcium: 4.5%; Polypropylene fiber: 1.3%; Cellulose ether: 2.0% ; Water reducer: 1.5%. The individual value evaluation of the impact sound insulation of the dry powder mortar under this formula is 54.0dB, which is 24.0dB lower than the single value evaluation of the impact sound of the dry powder mortar under the basic formula (78.0dB). At the same time, the thermal conductivity is 0.050W / m.K, the final setting time is 290nin, and the 28d compressive strength is 7.4MPa. The dry powder mortar of this formula not only has good thermal insulation performance, but also has low thermal conductivity, high strength and good cracking performance, and has excellent building thermal insulation properties. Thermal effect, stable performance, small fluctuation, reasonable final setting time, excellent construction performance, bonding performance, non-combustibility, avoiding hollow...

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Abstract

The invention discloses heat-insulating sound-insulating dry-mixed mortar, made from the following components, by weight: 30-40% of cement, 30-35% of vitrified micro bubbles, 9-14% of elastic rubber powder, 0.5-2% of latex powder, 5-7% of clay, 4-5% of ash calcium, 0.5-2% of polypropylene fiber, 0.4-3% of cellulose ether, and 1-2% of a water reducer. A floor slab made with the heat-insulating sound-insulating dry-mixed mortar has an impact sound improvement of 15.0-25.0 dB and a heat conductivity coefficient of about 0.050 W / m.K. The dry-mixed mortar has good heat-insulating performance, low heat conductivity coefficient, high strength and good anti-cracking performance, can provide excellent heat-insulating and sound-insulating effects for buildings, has stable properties and small fluctuation with good sound-insulating effect, and has the advantages of good constructability, good adhesion, non-inflammability, zero hollowing and cracking and low economic cost.

Description

technical field [0001] The invention relates to a floor dry powder mortar, in particular to a thermal insulation and sound insulation dry powder mortar capable of both heat preservation and sound insulation. Background technique [0002] With the rapid increase of building energy consumption, building energy consumption has accounted for one-third of the total energy consumption of the whole society in our country. For the sustainable development of society, the implementation of building energy conservation has become a basic national policy of our country. In building energy consumption, the energy dissipated through the building floor, roof and ground reaches 50%, especially the building floor dissipates more than 30%. Therefore, building floor insulation and energy saving is an important way to reduce building energy consumption, and the application of a safe, efficient and durable building floor insulation system is the main measure. In this insulation system, the insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/34C04B111/52
CPCC04B28/00C04B2111/343C04B2111/52C04B2201/32C04B2201/50C04B14/24C04B24/24C04B14/10C04B22/064C04B16/0633C04B24/383C04B2103/302
Inventor 文泽专
Owner 深圳中技绿建科技有限公司
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