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Carbon fiber autoclaved aerated concrete slab and application thereof

A technology of autoclaved air filling and concrete slabs, which is applied in the direction of floors, building components, building materials, etc., can solve the problems that the degree of internal damage cannot be monitored, etc., to eliminate degradation and deterioration, reduce overall weight, and improve thermal insulation performance Effect

Inactive Publication Date: 2008-10-29
哈尔滨工业大学空间钢结构幕墙有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And at present, it has been impossible to monitor the extent of its internal damage.

Method used

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  • Carbon fiber autoclaved aerated concrete slab and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The carbon fiber autoclaved aerated concrete slab comprises: a concrete structural slab for construction, the concrete is autoclaved aerated concrete 1, and carbon fibers 2 are distributed in the concrete of the structural slab.

[0025] The carbon fiber is a PAN-based carbon fiber reinforced cement-based composite material with a fiber length of 3-10 mm, and the carbon fiber compound is added in an amount of 0.74-3% of the total weight, such as 1%, 1.5%, 2%, 2.5% surface activity The addition amount of agent is 0.5-1% of total weight.

Embodiment 2

[0027] In the carbon fiber autoclaved aerated concrete slab described in Example 1, the surfactant is live silica fume and / or ground blast furnace slag and / or methylcellulose and / or carboxymethylcellulose, and each component is The proportioning of the prior art can be adopted, the cement used in the concrete is finely ground Portland cement with a maximum particle diameter of less than 45 microns, and the fine aggregate in the cement formula is silica sand or pulverized coal For the ash or volcanic microbeads or their composites, the ratio of the components in the prior art can be adopted, and the maximum diameter thereof is not greater than 0.2 mm.

Embodiment 3

[0029] An application of the above-mentioned autoclaved aerated concrete slab containing carbon fiber as a floor slab, a roof slab, and a wall slab.

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Abstract

The invention relates to an autoclaved aerated concrete slab containing carbon fibers and an application thereof. The prior precast slabs have large specific gravity, resulting in high weight of buildings and very high cost of foundations. The autoclaved aerated concrete has low specific gravity but poor strength, so as not to be used as supporting parts. The inventive product comprises building concrete structural slabs (1), wherein the concrete is autoclaved aerated concrete, and the concrete in the structural slabs is provided with carbon fibers (2). The product can be used as precast elements for buildings, such as floor slabs, roof slabs and wall slabs, etc.

Description

Technical field: [0001] The invention relates to a method of using carbon fiber as a reinforcing component, using autoclaved aerated concrete as a prefabricated panel for building and its application as a floor slab and a roof slab. Background technique: [0002] The proportion of existing prefabricated panels is relatively large, resulting in a relatively large building weight and high foundation costs. The specific gravity of air-entrained concrete is relatively small, but its strength is not good enough to be used as a load-bearing component. And for many years, people have been accustomed to using steel bars as tensile components. Since one of the main components of air-entrained concrete is lime, steel bars buried in this air-entrained concrete will soon be corroded and become brittle. , Structural parts are prone to fatigue effects, material aging, resulting damage accumulation, resistance attenuation, and sudden accidents. This is a significant threat to the longevi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/02E04C1/40
CPCC04B2111/00603C04B2111/00655C04B2111/00586C04B28/02
Inventor 陈月明宋昌永郭振东
Owner 哈尔滨工业大学空间钢结构幕墙有限公司
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