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High-performance heat-preservation thermal-insulation wall material

A wall material, thermal insulation technology, applied in the field of building thermal insulation materials and engineering, can solve the problems of low strength and durability of thermal insulation wall materials

Inactive Publication Date: 2016-04-20
HANGZHOU LAIBAODE NEW MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength and durability of the current insulation wall materials are still far lower than those of traditional load-bearing walls.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Example 1: Using tetraethyl orthosilicate as a carbon source, a three-dimensional reticular silica airgel was prepared by a sol-gel method, and the prepared silica airgel was ground into a powder; 0.2% by mass of silica airgel powder, add dispersant and water and fully stir to form a uniform slurry, and then add 0.8% by mass of powder mass superplasticizer. Add 35 parts of cement, 15% by mass fraction of high-strength fly ash ceramsite with a particle size of 5mm to 10mm, 20 parts of blast furnace slag, and 30 parts of fly ash into the mixer. The sand rate is set to 39%, and stirred for 3 minutes. Add the mixed slurry and mix it evenly to make molding and pouring. After the formwork is removed, it will be cured to obtain a high-performance thermal insulation wall material.

Embodiment 2

[0020] Example 2: Using tetraethyl orthosilicate as a carbon source, a three-dimensional reticulated silica airgel was prepared by a sol-gel method, and the prepared airgel was ground into powder; 0.31% of the mass of the powder was weighed For silicon airgel powder, add an appropriate amount of dispersant and stir to form a uniform slurry, and then add 0.9% superplasticizer by powder mass. Add 30 parts of cement, 20 parts of high-strength fly ash ceramsite, 20 parts of blast furnace slag, and 30 parts of fly ash to the mixer in sequence, set the sand ratio to 42%, and mix at a high speed of 3mim. Add the mixed slurry to fully stir, cast into shape, and remove the formwork to get a high-performance thermal insulation wall material.

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Abstract

The invention discloses a preparation method of a high-performance heat-preservation thermal-insulation wall material. The high-performance heat-preservation thermal-insulation wall material comprises, by weight, 20-40 parts of cement, 10-30 parts of ceramsite, 20-40 parts of blast furnace slag and 30-50 parts of fly ash. The high-performance heat-preservation thermal-insulation wall material has a sand ratio of 39-42%, contains 0.2-0.5% of silicon oxide aerogel based on dry materials, contains a water reducer of which the use amount is determined according to fluidity and has a water-binder ratio of 0.45-0.50. The preparation method comprises dispersing prepared silicon oxide aerogel in water, uniformly mixing cement, ceramsite, blast furnace slag and fly ash according to the above ratio to obtain a uniform mixture, adding a water reducer into water, carrying out strong stirring, carrying out casting according to a certain volume ratio and carrying out maintenance to obtain the high-performance heat-preservation thermal-insulation wall material with excellent thermal insulation and high strength. The high-performance heat-preservation thermal-insulation wall material has light weight, thermal-insulation effects, high strength and good fireproof performances.

Description

technical field [0001] The invention relates to the field of building thermal insulation materials and engineering technology, in particular to a high-performance thermal insulation wall material and a preparation method thereof. Background technique [0002] Wall material is the largest and indispensable building material in the construction field, and its development is closely related to energy and environment. For many years, building walls generally use a single material, such as hollow block walls, holiday concrete walls, etc. [0003] Due to the high thermal conductivity of a single material, it cannot meet the thermal insulation requirements. Therefore, according to the needs of building energy conservation, urban materials and high-efficiency thermal insulation materials (such as rock wool, mineral wool, polystyrene board, etc.) are often used to form composite walls. The composite wall makes good use of the strengths of the two materials, which will not make the w...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/02C04B22/06
Inventor 张津践朱蓬莱王建英牛茂威张小兵
Owner HANGZHOU LAIBAODE NEW MATERIAL TECH CO LTD
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