Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of hybrid fiber reinforced concrete

A technology of mixing fiber and concrete, which is applied in the field of construction engineering, and can solve problems such as affecting the strength of concrete, poor strength, and insufficient bonding force

Inactive Publication Date: 2014-08-13
WUHAN UNIV OF TECH +1
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is well known that pure plant fibers may affect the strength of concrete due to their poor strength
Moreover, since the bonding force between the plant fibers and the concrete matrix is ​​not strong enough, it may lead to the characteristics of poor overall performance of the concrete

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below.

[0025] The raw material of hybrid fiber concrete of the present invention is made up of portland cement, hybrid fiber, lime, gypsum, pozzolan, water reducer, thickener and early strength agent, and the mass ratio of above-mentioned each component (the quality of cement is set as The reference value 1) is 1: (0.09-0.12): (0.5-0.6): (0.3-0.4): (2.3-2.5): (0.02-0.03): (0.02-0.03): (0.012-0.013), The water-cement ratio is 0.25-0.32; wherein, the mixed fibers are composed of rice straw fiber, 0.03-0.04 asbestos fiber, 0.01-0.02 jute fiber, and 0.01 viscose fiber with a mass ratio of 0.04-0.05.

[0026] Preferably, the mass ratio of Portland cement, straw fiber, asbestos fiber, jute fiber, viscose fiber, lime, gypsum, pozzolan, water reducer, thickener and early strength agent is 1:0.04:0.04:0.02: 0....

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
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
widthaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of hybrid fiber reinforced concrete. The raw materials comprise silicate cement, hybrid fibers, lime, gypsum, cinerite, a water reducer, a thickener and an early strength agent, wherein the hybrid fibers consist of straw fibers, asbestos fibers, jute fibers and viscose, the water reducer is made from maleic anhydride, acrylic acid, allyl alcohol polyether, isopentenol polyoxyethylene ether, imide and ammonium persulfate. The early strength agent is prepared by mixing magnesium chloride, sodium sulfite, ethylene glycol, flue gas desulfurization gypsum, silicon dioxide, bentonite and mirabilite. According to the preparation method provided by the invention, four fibers are taken as the reinforcing material of concrete and the water reducer and the early strength agent matched in use are provided. The hybrid fiber reinforced concrete prepared by the preparation method provided by the invention not only has high strength and good integral performance, but also is low in cost, so that the preparation method is suitable for the technical field of constructional engineering.

Description

technical field [0001] The invention relates to a preparation method of hybrid fiber concrete, which belongs to the technical field of construction engineering. Background technique [0002] Fiber-reinforced concrete is a composite material composed of fiber and cement base material, which has the advantages of high strength and good corrosion resistance, and has been used more and more in the field of construction. Fiber reinforced materials commonly used in fiber reinforced concrete include organic compound fibers, carbon fibers, glass fibers, steel fibers, etc. Although these fibers can improve the performance of concrete to a certain extent, due to their high production costs, the cost of concrete has increased a lot. [0003] In order to reduce the cost of fiber-reinforced concrete, the use of plant fiber has been gradually developed in recent years as a substitute. On the other hand, as a large agricultural country, our country has very little utilization rate of cro...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/02
Inventor 步向义王玉杰苑大超喻福涛
Owner WUHAN UNIV OF TECH