Self-dense concrete of mixed fiber with fly ash in use for prefabricated acoustic barrier

A technology of self-compacting concrete and hybrid fiber, which is applied in the field of configuration of fiber concrete and fly ash concrete, self-compacting concrete, hybrid fiber fly ash self-compacting concrete, achieving significant technical advantages, simple production process and cost reduction
CN1915890AInactive Publication Date: 2007-02-21DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2007-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to preparation and application of high-performance and anti-crack self-tight concrete reinforced with fiber and fly ashes. This invention uses fly ashes as a substitute for part of cement, and high-alkali-resistant glass fiber modified polypropylene fiber as the reinforcing materials. Besides, an appropriate quantity of water-reducer is used to improve the processability of the mixture. The obtained self-tight concrete has such advantages as high performance and good anti-crack property. The method for preparing sound barrier from the self-tight concrete is simple and needs no complicated equipments. The obtained sound barrier has better performance when compared with conventional concrete sound barriers, metal-plate sound barriers, and plastic organic glass sound barriers.
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Description

technical field

[0001] The invention belongs to the technical field of concrete in civil engineering, and relates to self-compacting concrete, fiber concrete and fly ash concrete, in particular to the configuration and application of hybrid fiber fly ash self-compacting concrete with excellent working performance and shrinkage and crack resistance . Background technique

[0002] Currently, the noise of cars and trains on roads, highways or railways passing through town is increasingly disturbing adjacent residential areas. In order to effectively reduce noise pollution, the construction of sound barriers has become increasingly popular.

[0003] According to the material, the sound barrier can be divided into concrete, metal plate, plastic plexiglass and green belt. Among them, the sound barrier of the metal plate is easily corroded. In the environment of chloride salt, the connection between the sound barrier of the metal plate and the foundation is often damaged. It must...

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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