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High-crack-resistant palm fiber self-compacting concrete

A self-compacting concrete and palm fiber technology, applied in the field of inorganic non-metallic materials, can solve the problems of high brittleness, low tensile strength, easy cracking, etc., and achieve the effect of improving compressive strength, low cost, and improving comprehensive performance

Inactive Publication Date: 2015-04-22
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the defects of low tensile strength, high brittleness and easy cracking of the above-mentioned concrete, the present invention discloses a high-crack-resistant palm fiber self-compacting concrete. The present invention adopts the following technical solutions to solve the above-mentioned technical problems:

Method used

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Effect test

Embodiment 1

[0018] The proportion of each component of a high-crack-resistant palm fiber self-compacting concrete is: cement 360kg / m 3 , fly ash 210kg / m 3 , sand 820kg / m 3 , stone 940kg / m 3 , palm fiber 0kg / m 3 , water 200kg / m 3 , the water-cement ratio is 0.35, and the water reducing agent is 10kg / m 3 .

Embodiment 2

[0020] The distribution ratio of each component of a kind of palm fiber concrete is: cement 360kg / m 3 , fly ash 210kg / m 3 , sand 820kg / m 3 , stone 940kg / m 3 , palm fiber 0.6kg / m 3 , water 200kg / m 3 , the water-binder ratio is 0.35, and the water reducing agent is 10kg / m 3 . Palm fiber is untreated.

Embodiment 3

[0022] The distribution ratio of each component of a kind of palm fiber concrete is: cement 360kg / m 3 , fly ash 210kg / m 3 , sand 820kg / m 3 , stone 940kg / m 3 , palm fiber 0.6kg / m 3 , water 200kg / m 3 , the water-cement ratio is 0.35, and the water reducing agent is 10kg / m 3 . Palm fiber is treated.

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Abstract

The invention discloses high-crack-resistant palm fiber self-compacting concrete. The high-crack-resistant palm fiber self-compacting concrete comprises cement, pulverized fuel ash, river sand, limestone, water, a water reducing agent and palm fibers, wherein the content of the cement is 320-380kg / m<3>; the content of the pulverized fuel ash is 170-230kg / m<3>; the content of the river sand is 780-860kg / m<3>; the content of the limestone is 920-980kg / m<3>; the content of the palm fibers is 0.6-1.5kg / m<3>; the content of water is 175-240kg / m<3>; the content of the water reducing agent is 10-12.5kg / m<3>. By virtue of the adoption of the design, the palm fibers are doped into the existing the concrete, so that the compressive strength, the splitting tensile strength and the crack resistance of the concrete are effectively improved; the integrated performance of the concrete is improved; meanwhile, the high-crack-resistant palm fiber self-compacting concrete is low in cost and has good market prospect and good popularization value.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and in particular relates to a novel palm fiber self-compacting concrete. Background technique [0002] As the most widely used building material today, concrete has the disadvantages of low tensile strength, high brittleness and easy cracking. At the same time, due to its own weight and the need for vibration, it also limits the use of concrete in modern new building structures. [0003] At present, it is generally believed in the world that adding fibers to concrete can help overcome the defects of low tensile strength, high brittleness and easy cracking of concrete; and the emergence of self-compacting concrete has effectively solved the difficulties in the construction of densely reinforced concrete and the need for vibration. shortcoming. Fiber self-compacting concrete combines the advantages of fiber concrete and self-compacting concrete. Introducing fibers into c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/02
Inventor 龙武剑徐祥伟邢锋潘坚伟时金广王卫仑
Owner SHENZHEN UNIV
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