Non metal fiber woven net flock combined reinforced concrete base composite material

A fiber woven mesh and non-metallic fiber technology, which is applied in the field of non-metallic fiber woven mesh and short fiber joint reinforced cement-based composite materials, can solve the problem of insufficient tensile strength of textile fiber woven mesh, unfavorable ultimate bearing capacity of woven mesh, and failure to meet engineering requirements. Application and other problems, to achieve the effect of solving the problem of anti-magnetization, reducing self-weight and high carrying capacity

Inactive Publication Date: 2006-02-22
浙江固邦新材料有限公司
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Problems solved by technology

At the same time, in recent years, some scholars in our country have tried to use textile fiber woven mesh to improve concrete. Due to the obvious defects in the performance and reinforcement technology of the fiber woven mesh used, it is far from meeting the requirements of practical engineering applications.
The main performance is that the tensile strength of the textile fiber braided mesh used is insufficient; the bearing capacity of th

Method used

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Examples

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Embodiment Construction

[0007] The following describes the embodiments of the present invention in detail in conjunction with the technical solutions.

[0008] An experimental test example of using carbon fiber woven mesh and PVA fiber to reinforce cement-based composite materials to make 10mm thick thin plates:

[0009] The volume mixing rate of PVA fiber (polyvinyl alcohol fiber) in the matrix is ​​2%, and the matrix mortar ratio is: cement: sand: fly ash: water: water reducing agent = 1: 0.8: 1.2: 0.56: 0.032; PVA fiber is Kuralon K-II type, which has good dispersibility in the cement matrix, moderate hydrophilicity, and good adhesion to the cement matrix; in addition, the cement type is PII42.5R, the maximum sand size is 0.15mm, and the powder The coal ash is grade I fly ash, and the water reducing agent is a polycarboxylate water reducing agent. The non-metal fiber woven mesh uses carbon fiber woven mesh.

[0010] Processing process: first make PVA fiber reinforced mortar-matrix material, first mix ...

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Abstract

The cement-base composite material uses nonmetal fibrage web and short fibre for joint reinforcement. Wherein, the said fibrage web should use carbon fiber, aramid fiber, alkali resistant glass fibre, polyethelene alcohol fibre, or polyvinyl fibre, or their mixture to weave; similarly, the short fiber shoud use one or more said fibers except the alkali resistant glass fibre. This invention solves the cracking problem in concrete structure under water, maintenance and solidification problem for reinforced concrete structure on corrosion environment, and magnetization-proof problem for medical instrument. The product has super tenacity and carrying capacity to disperse concrete crack, and fit to manufacture permanent mould plate and other structures to release self-weight and total cost.

Description

Technical field [0001] The invention belongs to the technical fields of civil engineering, water conservancy engineering, hydropower engineering, highway engineering and railway engineering, and relates to a fiber-reinforced cement-based composite material. It uses a non-metal fiber woven net and short fibers to strengthen the cement-based matrix and correspondingly harden The latter composite material has ultra-high toughness and high load-bearing capacity, which can harmlessly disperse concrete cracks. Background technique [0002] Traditional reinforced concrete structures will corrode the steel bars due to the intrusion of chloride ions or carbon dioxide and other corrosive media, and the protective layer will peel off, thereby reducing the bearing capacity of the structure and even causing damage to the entire structure. The maintenance cost of this type of concrete structure is high. This cost can even reach several times its cost. According to statistics, the corrosion los...

Claims

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Application Information

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IPC IPC(8): C04B30/02C04B14/38C04B16/06
Inventor 徐世烺李贺东张秀芳李庆华
Owner 浙江固邦新材料有限公司
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