Self-leveling thermal-insulation mortar and preparation method thereof

A thermal insulation mortar and self-leveling technology, which is applied in the field of building materials, can solve the problems of not conforming to the general direction of energy saving and environmental protection development, fast cooling speed, poor experience, etc., to achieve improved thermal insulation effect, improved mechanical properties, and high uniformity Effect

Inactive Publication Date: 2020-04-10
武汉每天建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the gypsum-based self-leveling floor cools down quickly after the floor heating does not supply heat, which leads to poor experience for people, and also does not conform to the current development direction of energy conservation and environmental protection. Self-leveling mortar is a technical problem that needs to be solved urgently

Method used

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  • Self-leveling thermal-insulation mortar and preparation method thereof
  • Self-leveling thermal-insulation mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Aggregate configuration: Weigh 10kg of fine sand of 0-2mm and 50kg of medium sand of 2-3mm respectively, and stir them evenly in a mixing mixer to obtain 60kg of aggregate;

[0031] Weigh 5kg of paraffin, put it into a stirring mixer, heat up to 80°C, stir until molten, weigh 10kg of ceramic particles, stir and absorb until there is no obvious liquid paraffin, cool down to room temperature, and stir for 10min to obtain 15kg of composite phase change material ;

[0032] Weigh 0.5 kg of modified polypropylene fiber with a length of 3-5 mm, mix it with 15 kg of composite phase change material, and stir for 10 minutes to obtain 15.5 kg of pretreated phase change material;

[0033] Weigh 100kg of α high-strength gypsum, 20kg of ordinary cement, 2kg of Class III C fly ash, 5kg of heavy calcium powder, 50kg of aggregate, 1kg of hydroxypropyl methylcellulose ether, 1kg of gum arabic and 0.1kg of sodium gluconate, Stir with a mixer for 20 minutes, then put 15.5kg of pretreated ...

Embodiment 2

[0035] Aggregate configuration: Weigh 36kg of fine sand of 0-2mm and 70kg of medium sand of 2-3mm, and stir them evenly in a mixing mixer to obtain 106kg of aggregate;

[0036] Weigh 10kg of paraffin, put it into a stirring mixer, heat up to 80°C, stir until molten, weigh 20kg of ceramic particles, stir and absorb until there is no obvious liquid paraffin, cool down to room temperature, and stir for 10min to obtain 30kg of composite phase change material ;

[0037] Weigh 1 kg of modified polypropylene fiber with a length of 3-5 mm, mix it with 30 kg of composite phase change material, and stir for 20 minutes to obtain 31 kg of pretreated phase change material;

[0038] Weigh 100kg of α high-strength gypsum, 30kg of ordinary cement, 8kg of third-class C fly ash, 15kg of heavy calcium powder, 60kg of aggregate, 1.6kg of hydroxyethyl methylcellulose ether, 3kg of gum arabic and 0.5kg of tartaric acid, and use Stir the mixer for 30 minutes, then put 31 kg of pretreated box-statio...

Embodiment 3

[0040] Aggregate configuration: Weigh 20kg of fine sand of 0-2mm and 60kg of medium sand of 2-3mm, and stir them evenly in a mixer to obtain 80kg of aggregate;

[0041] Weigh 7kg of paraffin, put it into a stirring mixer, heat up to 80°C, stir until molten, weigh 13kg of ceramic particles, stir and absorb until there is no obvious liquid paraffin, cool down to room temperature, and stir for 10min to obtain 20kg of composite phase change material ;

[0042] Weigh 0.7kg of modified polypropylene fiber with a length of 3-5mm, mix it with 20kg of composite phase change material, and stir for 15 minutes to obtain 20.7kg of pretreated phase change material;

[0043] Weigh 100kg of α high-strength gypsum, 24kg of ordinary cement, 4kg of third-class C fly ash, 10kg of heavy calcium powder, 53kg of aggregate, 0.6kg of hydroxypropyl methylcellulose ether, and 0.6kg of hydroxyethyl methylcellulose ether. kg, 1kg of gum arabic, and 0.3kg of citric acid were stirred with a mixer for 25 mi...

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Abstract

The invention provides self-leveling thermal-insulation mortar and a preparation method thereof. The self-leveling thermal-insulation mortar takes high-strength alpha gypsum as a raw material, and uses cement, fly ash, coarse whiting powder, aggregate, a thickening agent, a foam stabilizer, a flocculating agent and a phase-change energy storage material as additives, so the thermal insulation effect of the thermal-insulation mortar is effectively improved, and cooling time is delayed. The preparation method is simple in steps and comprises the following concrete steps: preparing a composite phase-change material; pretreating the phase-change material; and mixing the phase-change material with the additives to prepare the self-leveling thermal-insulation mortar. The self-leveling thermal-insulation mortar has the advantages good mechanical properties, good thermal insulation effect and good latent heat energy storage effect, can effectively reduce a heat dissipation speed so as to achieve the goal of energy saving and emission reduction, and has good market application prospects.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-leveling thermal insulation mortar and a preparation method thereof. Background technique [0002] With the maturity of floor heating technology in China, self-leveling floors have gradually been widely used. In the early days, cement concrete self-leveling materials were used. The cement base has good mechanical properties, but as the temperature changes, the size of the bottom surface of the cement base changes. Large, easy to produce cracks, which is not conducive to large-area applications. In order to overcome this problem, gypsum-based self-leveling materials have gradually been developed. [0003] The main gelling agent of gypsum-based self-leveling mortar is gypsum, which also has self-leveling properties, and the bottom surface of the gypsum-based self-leveling mortar is not hollow or cracked, the operation is easier, the hardening time is shorter, and ...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/62
CPCC04B28/146C04B2111/62C04B2201/32C04B7/00C04B14/06C04B18/08C04B14/28C04B24/383C04B24/38C04B24/06C04B24/36C04B14/02C04B16/0633
Inventor 余青霖王勇唐天明
Owner 武汉每天建材科技有限公司
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