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Thermal insulation filler and thermal insulation building block as well as manufacturing method of thermal insulation building block

A technology of thermal insulation filler and thermal insulation block, which is applied in the direction of building materials, ceramic products, applications, etc., can solve the problems of poor thermal insulation performance, high cost, poor carrier binding, etc., and achieve the effect of improving production efficiency and short maintenance time

Inactive Publication Date: 2010-08-18
CHONGQING KAIKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its poor thermal insulation performance, high cost, and immature filling process lead to poor combination with the carrier
Both methods cannot meet the technical requirements of self-insulating blocks, which is the main reason why the existing technology of composite self-insulating blocks cannot be popularized on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: with 30% fly ash, 58% sulfoaluminate cement, 1.8% sodium lauryl sulfate blowing agent, 2.2% polyurethane hard foam stabilizer, 8% methyl hydrogen polymer Siloxane water repellent, stir with water to form a slurry, the mixture will foam when the ambient temperature is 15°C and the water temperature is 40°C; for the holes of sintered hollow blocks with 12 holes and thermal conductivity of 0.60w / m.k Use a spray gun to spray water, spray 3% water on the block, and then inject 2 / 5 of the height from the top of a through hole to make it foam, and press it on the upper surface of the carrier with a gravity block; maintain and shape in the natural environment.

Embodiment 2

[0038] Embodiment 2: 35% fly ash, 55% sulfoaluminate cement, 2.1% sodium bicarbonate foaming agent, 1.7% polyacrylamide foam stabilizer, 6.2% paraffin water-repellent are stirred evenly with water The slurry is formed, and the mixture is foamed when the ambient temperature is 35°C and the water temperature is 25°C; the sinter-free hollow block with 13 holes and a thermal conductivity of 0.50w / m.k is soaked in water, and the block is hydrated by 8%. Inject 1 / 3 of the height into the top of a through hole to make it foam, and press it on the upper surface of the carrier with a gravity block; maintain and shape in the natural environment.

Embodiment 3

[0039] Embodiment 3: with 38% fly ash, 52% ferric aluminate cement, 1.9% dichlorotetrafluoroethane blowing agent, 1.8% sodium dodecylbenzenesulfonate foam stabilizer, 6.3% hard Magnesium fatty acid water-repellent agent, mixed with water to form a slurry evenly, the mixture will foam when the ambient temperature is 25°C and the water temperature is 20°C; 5% water will be generated for the 20-hole, non-sintering hollow block with a thermal conductivity of 0.43w / m.k , and then inject 1 / 2 height from the top of a through hole to make it foam, and press it on the upper surface of the carrier with a gravity block; maintain and shape in the natural environment.

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Abstract

The invention discloses a thermal insulation filler, a thermal insulation building block as well as a manufacturing method of the thermal insulation building block. The thermal insulation filler is prepared by mixing the following components in percentage by weight: 30-38 percent of fly ash, 52-58 percent of early-strength double-fast cement, 1.8-2.1 percent of foaming agent, 1.7-2.2 percent of foam stabilizer and 6.2-8 percent of water repellent; wherein the foaming agent is one or more of lauryl sodium sulfate, sodium bicarbonate or dichlorotetrafluoroethane; the foam stabilizer is one or more of rigid polyurethane foams, polyacrylamide or sodium dodecyl benzene sulfonate; and the water repellent is one or more of methyl polyhydrosiloxane, paraffin or magnesium stearate. The thermal insulation filler has filling density lower than 200kg / m<3>, heat conductivity coefficient lower than 0.06w / m.k and combustion performance reaching grade A in a filling carrier. The thermal insulation fillers can be fully bonded with the inner wall of a filler carrier after being subjected to foaming and has difficult shedding.

Description

technical field [0001] The invention relates to a heat-insulation filler, a heat-insulation block and a method for making the heat-insulation block. Background technique [0002] Energy conservation and emission reduction is a basic national policy for building an energy-saving society and sustainable development in my country. However, at present, among the wall materials in our country, traditional wall materials still occupy a dominant position, and there are problems such as backward industrial structure, high energy consumption in production, and environmental pollution. In recent years, although some insulation blocks have appeared, there are two ways to make them: (1) filling with organic materials. Its environmental protection, durability, and economy all fail to meet the requirements of thermal insulation blocks; (2) fill with other inorganic lightweight thermal insulation fillers. Its poor thermal insulation performance, high cost, and immature filling process le...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/00E04C1/41
Inventor 许建明许明辉
Owner CHONGQING KAIKANG TECH
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