Light-weight anti-corrosion concrete for light steel structure wall body and preparation method thereof

A technology of light steel structure and concrete, which is applied in the field of building materials, can solve the problems of easy corrosion of steel and restrict the development of light steel structure buildings, etc., and achieve the effects of improving strength, corrosion prevention and protection, and simple preparation methods

Inactive Publication Date: 2018-10-23
HEFEI GUORUI INTEGRATED CONSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a kind of prefabricated building, light steel structure prefabricated building has great development prospects. However, due to the limitation of its own load-bearing performance and the easy corrosion of steel itself, the development of light steel structure buildings is seriously restricted. A kind of It is very necessary to use lightweight anti-corrosion concrete materials for light steel structure walls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In terms of parts by weight, weigh the proportion and add 3.7 parts of water reducer to 140 parts of proportioning water, mix well and add to the mixer; start the mixer, and weigh 0.5 parts of hydroxypropyl methylcellulose and vinyl acetate- Mix 0.8 parts of tertiary carbon ethylene fat-acrylate copolymer latex powder evenly, add to a mixer and stir for 1 minute; then add 170 parts of cement, 139 parts of fly ash, and 35 parts of UEA expansion agent and stir for 3 minutes. While stirring, 8.5 parts of EPS particles Parts were added to the mixer, and after stirring for 5 minutes, the stirring was stopped to obtain lightweight anticorrosion concrete for light steel structure walls.

[0021] The obtained lightweight anti-corrosion concrete for the light steel structure wall has good overall workability, and the pouring construction performance of the wall panels is good. The wall panels made have no cracks in 28 days. 1.6MPa, dry bulk density 440kg / m³, corrosion coefficien...

Embodiment 2

[0023] In terms of parts by weight, weigh the proportion and add 3.7 parts of water reducer to 140 parts of proportioning water, mix well and add to the mixer; start the mixer, and weigh 0.5 parts of hydroxypropyl methylcellulose and vinyl acetate- Mix 1 part of tertiary carbon ethylene ester-acrylate copolymer latex powder evenly, add to the mixer and stir for 2 minutes; then add 180 parts of cement, 124 parts of fly ash, 40 parts of calcium oxide-calcium sulfoaluminate expansion agent and stir for 2 minutes, stir At the same time, 9 parts of EPS particles were added into the mixer, and after stirring for 3 minutes, the stirring was stopped to obtain lightweight anti-corrosion concrete for light steel structure walls.

[0024] The obtained lightweight anti-corrosion concrete for the light steel structure wall has good overall workability, and the construction performance of the wallboard is good. The wallboard has no cracks in 28 days. 1.8MPa, dry bulk density 450kg / m³, corro...

Embodiment 3

[0026] In terms of parts by weight, weigh the proportion and add 3.7 parts of water reducer to 140 parts of proportioning water, mix well and add to the mixer; start the mixer, and mix 0.5 parts of hydroxypropyl methylcellulose and vinyl acetate - Mix 1 part of ethylene copolymer latex powder evenly, add to a mixer and stir for 2 minutes; then add 190 parts of cement, 114 parts of fly ash, and 40 parts of calcium sulfoaluminate expansion agent and stir for 3 minutes. While stirring, add 9 parts of EPS particles Add the mixer, and after stirring for 5 minutes, stop stirring to obtain lightweight anticorrosion concrete for light steel structure walls.

[0027] The obtained lightweight anti-corrosion concrete for the light steel structure wall has good overall workability, and the pouring construction performance of the wall panels is good. The wall panels made have no cracks in 28 days. 2.1MPa, dry bulk density 450kg / m³, corrosion coefficient 0.84.

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Abstract

The invention discloses light-weight anti-corrosion concrete for a light steel structure wall body and a preparation method thereof, and relates to the technical field of a building material. The light-weight anti-corrosion concrete for the light steel structure wall body is prepared from the following ingredients in parts by weight: 170 to 190 parts of ordinary Portland cement, 114 to 139 parts of fly ash, 35 to 50 parts of expanding agents, 0.5 to 1.0 part of hydroxypropyl methyl cellulose, 0.8 to 1.2 parts of redispersible powder, 8.5 to 9.5 parts of EPS particles, 3.7 to 4 parts of water reducing agents and 135 to 140 parts of water. The concrete provided by the invention has the advantages that the concrete cracking is reduced; the moisture seepage is prevented; the sulphate corrosionresistance is realized.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a lightweight anti-corrosion concrete for light steel structure walls and a preparation method thereof. Background technique [0002] Lightweight thermal insulation concrete materials have achieved blowout development in my country in recent years due to their excellent characteristics such as greenness, energy saving, light weight, and thermal insulation. Quality insulation materials are in a critical period of transformation, upgrading and structural adjustment. On the other hand, prefabricated buildings have been valued by the state because of their advantages such as energy saving, environmental protection, fast construction, and controllable quality. Government Work Report", the General Office of the State Council issued the "Guiding Opinions of the General Office of the State Council on Vigorously Developing Prefabricated Buildings" in September 2016, advocating the vigoro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/34C04B111/40
CPCC04B28/04C04B2111/00293C04B2111/2015C04B2111/343C04B2111/40C04B2201/20C04B2201/50C04B22/002C04B2103/302C04B24/383C04B24/2688C04B18/08C04B16/08C04B2103/0068
Inventor 吴应兵仇多宏程佳
Owner HEFEI GUORUI INTEGRATED CONSTR TECH CO LTD
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