Fiber reinforced thermal insulation concrete wall body

A thermal insulation concrete and fiber reinforced technology, applied in the field of fiber reinforced thermal insulation concrete walls, can solve problems such as damage and micro-cracks

Inactive Publication Date: 2018-09-21
芜湖恒固混凝土材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ordinary concrete walls and aerated concrete walls are brittle materials, which are easy to produce micro-cracks due to shrinkage, or even co...

Method used

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  • Fiber reinforced thermal insulation concrete wall body
  • Fiber reinforced thermal insulation concrete wall body

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preparation example Construction

[0019] The present invention also provides a method for preparing the fiber-reinforced thermal insulation concrete wall, comprising the following steps:

[0020] (1) Spinning after mixing the first polymer emulsion and the second blowing agent uniformly to obtain polymer fibers; then placing the polymer fibers, chain extenders and metal oxide powders in the second polymer emulsion, React at 60-100°C for 15-60 minutes, then soak in acidic solution to obtain composite porous fibers;

[0021] (2) Mix fly ash, cement, fine sand, diatomaceous earth, light calcium carbonate, light aggregate, composite porous fiber and waste rubber under mechanical stirring conditions to obtain a powder mixture;

[0022] (3) After uniformly dispersing the water reducer and other additives in water, add them to the above powder mixture, and continue to stir for 60-150s to obtain a mixed slurry; finally, add the first foaming agent to the mixed slurry, and stir evenly to obtain Concrete precursor;

...

Embodiment 1

[0029] (1) Spin after mixing 24kg polyethylene terephthalate emulsion and 6kg 4,4-oxobisbenzenesulfonyl hydrazide evenly to obtain polyethylene terephthalate fibers, and the spinning process is: The power supply voltage is 30kV, the spinning temperature is 25°C, and the relative humidity is 60%; the needle spacing of the multi-needle spinneret unit is 25cm, and the number of spinneret unit needleheads is 60; 22kg polyethylene terephthalate fiber, 20kg ethylene glycol and Put 1.2kg of zinc nitrate in 12kg of polyethylene terephthalate emulsion, react at 80°C for 45 minutes to obtain polymer fibers, then soak the polymer fibers in a hydrochloric acid solution with a pH of 3 for 2 hours, and replace them every 15 minutes A hydrochloric acid solution to obtain a composite porous fiber;

[0030] Soak 4kg of waste rubber granules in an acidic solution with a pH of 6-6.5 for 4 hours to obtain acidified rubber, mix the acidified rubber and 10kg of maleic anhydride in water evenly, and...

Embodiment 2

[0035] (1) 20kg of nylon 6 emulsion and 2kg of 4,4-oxobisbenzenesulfonyl hydrazide are mixed evenly and then spun to obtain nylon 6 fiber. The spinning process is: power supply voltage 30kV, spinning temperature 25°C, relative The humidity is 60%; the distance between the needles of the multi-needle spinning unit is 25cm, and the number of needles in the spinning unit is 60; 18kg of nylon 6 fibers, 24kg of 1,3-butanediol and 2kg of zinc oxide are placed in 10kg of nylon 6 emulsion, at 80°C React at low temperature for 30 minutes to obtain polymer fibers, then soak the polymer fibers in a hydrochloric acid solution with a pH of 2 for 1.5 hours, wherein the hydrochloric acid solution is replaced every 15 minutes to obtain composite fibers B, and treat composite fibers B at 150°C for 30 minutes, composite porous fiber

[0036] Soak 3kg of waste rubber particles in an acidic solution with a pH of 6-6.5 for 3 hours to obtain acidified rubber, mix the acidified rubber and 9kg of mal...

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Abstract

The invention relates to the technical fields of concrete and preparation of the concrete, specifically to a fiber reinforced thermal insulation concrete wall body. The fiber reinforced thermal insulation concrete wall body is prepared from the following raw materials in parts by weight: 25 to 45 parts of coal ash, 15 to 35 parts of cement, 15 to 30 parts of fine sand, 5 to 12 parts of diatomite,3 to 15 parts of light calcium carbonate, 3 to 12 parts of composite porous fiber, 15 to 48 parts of light aggregate, 3 to 8 parts of waste rubber particles, 1 to 3 parts of a first foaming agent, 0.5to 1.5 parts of a water reducer, and 0 to 5 parts of other additives, wherein the composite porous fiber is prepared from the following materials in parts by weight: 10 to 30 parts of first polymer emulsion, 18 to 56 parts of second polymer emulsion, 0.6 to 10 parts of a second foaming agent, 1 to 6 parts of metal oxide powder, and 10 to 30 parts of a chain extender. The fiber reinforced thermalinsulation concrete wall body has the characteristics of light weight, high strength and high weather resistance.

Description

technical field [0001] The invention relates to the technical field of concrete and its preparation, in particular to a fiber-reinforced thermal insulation concrete wall. Background technique [0002] Building energy conservation is a very important aspect of realizing a low-carbon economy. Among them, external wall insulation is the key to building energy saving. The external wall insulation technologies that are being used or promoted in our country are: ①External application of foam plastic board; ②Use foam plastic board as the sandwich of the outer wall; ③Use special additives to make slurry of polystyrene particles or glass beads, glass fiber and cement for external application Exterior wall; ④ Cast-in-place foam concrete wall insulation technology, which is a promotion project of the Ministry of Housing and Urban-Rural Development of the People's Republic of China (Jiankeke Han [2010] No. There is a catalog of building energy-saving retrofit technology promotion"53)....

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B20/02C04B18/02C04B38/02C04B38/10
CPCC04B28/02C04B18/027C04B20/023C04B2201/20C04B2201/32C04B2201/50C04B18/08C04B14/06C04B14/08C04B14/28C04B14/16C04B18/22C04B16/082C04B16/0675C04B2103/302C04B24/20C04B24/085C04B24/383C04B22/0093C04B24/10C04B22/068C04B38/02C04B18/24C04B16/0691C04B16/0616C04B18/023C04B14/10
Inventor 承忠富
Owner 芜湖恒固混凝土材料有限公司
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