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Preparation method of high-strength thermal insulation concrete plate

A heat-insulating concrete, high-strength technology, applied in the field of building materials, can solve problems such as low strength, and achieve the effects of high mechanical strength, stable structure and complete shape

Pending Publication Date: 2020-05-15
吴敬辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem of low strength of the current thermal insulation concrete panels, a preparation method of high-strength thermal insulation concrete panels is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In parts by weight, weigh 20 parts of desulfurized gypsum, 12 parts of glycerin, and 120 parts of deionized water respectively, add desulfurized gypsum and glycerin into deionized water, and stir at 300 r / min for 40 minutes at room temperature to obtain gypsum Suspension, put the gypsum suspension in a high-temperature and high-pressure reactor, stir and react at a speed of 160r / min for 2 hours under the conditions of a temperature of 200°C and a pressure of 20MPa to obtain a reaction slurry, and use 100°C deionized water to prepare the reaction slurry Wash 3 times, place in a centrifuge, centrifuge at 4000r / min for 12min at room temperature, take out the lower layer of solid, dry in an oven at 120°C for 2h, cool at room temperature to obtain gypsum whiskers;

[0033] Then in parts by weight, weigh 30 parts of glass microspheres, 120 parts of 10% sodium hydroxide solution by mass fraction, 1.2 parts of 3-aminopropyltriethoxysilane, 0.6 parts of N-octyltriethyl Oxysilane...

Embodiment 2

[0036] In parts by weight, weigh 25 parts of desulfurized gypsum, 15 parts of glycerol, and 150 parts of deionized water respectively, add desulfurized gypsum and glycerin into deionized water, and stir for 50 minutes at a speed of 325 r / min at room temperature to obtain gypsum Suspension, put the gypsum suspension in a high-temperature and high-pressure reactor, stir and react at a speed of 180r / min for 3h under the conditions of a temperature of 220°C and a pressure of 25MPa to obtain a reaction slurry, and use 100°C deionized water to prepare the reaction slurry Wash 4 times, place in a centrifuge, centrifuge at a speed of 4500r / min for 14min at room temperature, remove the lower layer of solid, dry in an oven at 140°C for 3h, and cool at room temperature to obtain gypsum whiskers;

[0037] Then in parts by weight, weigh 35 parts of glass microspheres, 140 parts of 10% sodium hydroxide solution by mass fraction, 1.4 parts of 3-aminopropyltriethoxysilane, 0.7 parts of N-octyl...

Embodiment 3

[0040] In parts by weight, weigh 30 parts of desulfurized gypsum, 18 parts of glycerin, and 180 parts of deionized water, add desulfurized gypsum and glycerin into deionized water, and stir at 350 r / min for 60 minutes at room temperature to obtain gypsum Suspension, put the gypsum suspension in a high-temperature and high-pressure reactor, stir and react at a speed of 200r / min for 4h under the conditions of a temperature of 240°C and a pressure of 30MPa, to obtain a reaction slurry, and use 100°C deionized water to prepare the reaction slurry Wash 5 times, place in a centrifuge, centrifuge at 5000r / min for 16min at room temperature, take out the lower layer of solid, dry in an oven at 160°C for 4h, cool at room temperature to obtain gypsum whiskers;

[0041] In parts by weight, weigh 40 parts of glass microspheres, 160 parts of 10% sodium hydroxide solution by mass fraction, 1.6 parts of 3-aminopropyltriethoxysilane, 0.8 parts of N-octyltriethoxy Base silane, 80 parts of absol...

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PUM

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Abstract

The invention relates to a preparation method of a high-strength thermal insulation concrete plate, and belongs to the technical field of building materials. Gypsum whiskers are used as a raw materialto prepare the high-strength thermal insulation concrete plate, and the gypsum whiskers should be uniform in size and stable in structure, As the atomic structure arrangement of the whiskers is highly ordered during crystallization and is approximate to that of an intact crystal, the strength of the whiskers is close to the theoretical strength of valence bonds among atoms of the material and farexceeds that of various fortifiers used at present, and the strength of the concrete plate can be effectively reinforced. Modified glass beads are added to prepare the high-strength thermal insulation concrete plate. The outer walls of the hollow glass beads are made of glass, so that the hollow glass beads have high compression resistance, and the added glass beads can significantly improve thecompressive strength of the concrete. The thermal expansion coefficient of the hollow glass beads is small, and the stability of the performance of the concrete can be ensured. The glass beads are filled with inert gas, so that the hollow glass beads have good sound insulation and heat preservation performance.

Description

technical field [0001] The invention relates to a preparation method of a high-strength thermal insulation concrete plate, which belongs to the technical field of building materials. Background technique [0002] In recent years, with the continuous development of building energy conservation, various building thermal insulation materials have emerged as the times require. Insulation board products, such as extruded boards, polystyrene boards, polyurethane insulation boards, mineral wool insulation boards, lightweight silicon-calcium boards, expanded perlite insulation boards, etc., have the advantages of industrialization of production, product standardization, and modularization of specifications and sizes. With many advantages, it is especially suitable for the modernization requirements of the housing industry. It has excellent comprehensive economic performance and is widely used as the thermal insulation layer of external wall and roof insulation systems. Organic mate...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/02B28B1/14C30B7/10C30B29/62C30B29/46C04B111/34C04B111/52
CPCB28B1/14C04B20/023C04B28/04C04B2111/343C04B2111/52C04B2201/50C30B7/10C30B29/46C30B29/62C04B24/32C04B24/20C04B14/383C04B14/22C04B14/026C04B14/305C04B24/2623C04B24/26C04B24/36C04B2103/302
Inventor 吴敬辉袁志林徐晶晶周威
Owner 吴敬辉
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