Anti-crack fiber for water reducing type concrete and mortar

A technology of anti-cracking fiber and concrete, which is applied in the fields of anti-cracking fiber for mortar and water-reducing concrete, and can solve the problems of adding anti-cracking and good workability
CN101774775AInactive Publication Date: 2010-07-14SHANGHAI LUOYANG NEW MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI LUOYANG NEW MATERIAL TECH
Publication Date
2010-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an anti-crack fiber for water reducing type concrete and mortar. A preparation method comprises the following steps of: selecting horse chestnutn timber, extracting high-strength high-elastic modulus cellulose fiber thereof through biological fiber extraction technology, and coating a chemical alkali-resistant coating layer on the surface of the extracted cellulose fiber; and adding a water reducing agent to the cellulose fiber coated with the chemical alkali-resistant coating layer to prepare the anti-crack fiber for the water reducing type concrete and mortar. The fiber has natural hydrophilism and a hollow cavity structure; and the hollow cavity structure can store part of free water in the early hydration stage, does not influence the working performance of the concrete, the mortar and other cement-based composite materials, and can improve the working performance of the concrete, the mortar and other cement-based composite materials.
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Description

technical field

[0001] The invention relates to an additive-type functional material of cement-based composite materials such as concrete and mortar, in particular to a crack-resistant fiber for water-reducing concrete and mortar. Background technique

[0002] The fibers used in various projects to improve the crack resistance of cement-based composite materials such as concrete and mortar have more or less influence on the working performance of cement-based composite materials such as concrete and mortar due to their physical and chemical properties (different lengths, surface hydrophobicity). The degree of fall and expansion have brought great difficulties to the construction. The result is that the addition of crack resistance and good workability cannot be achieved at the same time. Contents of the invention

[0003] The purpose of the present invention is to provide a water-reducing concrete and anti-cracking fiber for mortar that does not affect the working perform...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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