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High-performance fiber concrete at C60 strength grade and preparation method thereof

A high-performance fiber, strength-grade technology, used in climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of high brittleness, easy cracking, poor durability, etc. cracking and improving mechanical properties

Active Publication Date: 2017-12-08
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of high-performance fiber concrete of C60 intensity grade and preparation method thereof, utilize the material easily available in the market, adopt the improved concrete mixing process, by adding cellulose fiber, rice husk ash, active mineral admixture, Chemical admixtures, etc., to overcome the shortcomings of ordinary concrete such as high brittleness, easy cracking, and poor durability, to prepare high-performance fiber concrete with high volume stability, high durability, and high toughness C60 strength grade

Method used

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  • High-performance fiber concrete at C60 strength grade and preparation method thereof

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Effect test

Embodiment 1

[0065] In the high-performance fiber concrete of the C60 strength grade of this embodiment, the mixing ratio of each component in the high-performance fiber concrete is as follows: 366 parts of cement, 153 parts of tap water, 709 parts of river sand, 1053 parts of crushed stone, 100 parts of fly ash, 51 parts of rice husk ash, 6.8 parts of water reducing agent, 9.6 parts of shrinkage reducing agent, 13 parts of activator, 1.4 parts of cellulose fiber, 18 parts of carboxypropyl benzene polymer, and 1.7 parts of defoamer.

[0066] in:

[0067] Raw materials in terms of mass percent of the composite activator: 68% of sodium sulfate, 30% of calcium chloride, and 2% of triethanolamine.

[0068] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:

[0069] Carboxylated styrene-butadiene emulsion 49%, water 50%, additive 1%.

[0070] The above-mentioned components are prepared concrete according to the following method:

[0071] 1) Add water re...

Embodiment 2

[0079]In the high-performance fiber concrete of the C60 strength grade in this embodiment, the mixing ratio of each component in the high-performance fiber concrete is as follows: 360 parts of cement, 145 parts of tap water, 720 parts of river sand, 1020 parts of crushed stone, pulverized coal 120 parts of ash, 40 parts of rice husk ash, 6 parts of water reducing agent, 9 parts of shrinkage reducing agent, 14 parts of activator, 1.1 parts of cellulose fiber, 20 parts of carboxypropyl benzene polymer, and 1.7 parts of defoamer.

[0080] in:

[0081] Raw materials in terms of mass percent of the compound activator: 60% of sodium sulfate, 38% of calcium chloride, and 2% of triethanolamine.

[0082] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:

[0083] Carboxylated styrene-butadiene emulsion 48%, water 50%, additives 2%.

[0084] The above-mentioned components are prepared concrete according to the following method:

[0085] 1) Add w...

Embodiment 3

[0093] In the high-performance fiber concrete of C60 strength grade in this embodiment, the mixing ratio of each component in the high-performance fiber concrete is as follows: 380 parts of cement, 160 parts of tap water, 700 parts of river sand, 1040 parts of crushed stone, 80 parts of fly ash, 60 parts of rice husk ash, 7.5 parts of water reducing agent, 10 parts of shrinkage reducing agent, 12.5 parts of activator, 1.8 parts of cellulose fiber, 16 parts of carboxylated styrene-butadiene polymer, and 1.8 parts of defoamer.

[0094] in:

[0095] Raw materials in terms of mass percent of the composite activator: 65.5% of sodium sulfate, 33% of calcium chloride, and 1.5% of triethanolamine.

[0096] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:

[0097] Carboxylated styrene-butadiene emulsion 49%, water 50%, additive 1%.

[0098] The above-mentioned components are prepared concrete according to the following method:

[0099] 1) Add...

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Abstract

The invention discloses high-performance fiber concrete at a C60 strength grade and a preparation method thereof. The concrete comprises the following components in parts by mass: 360-380 parts of cement, 145-160 parts of water, 700-720 parts of river sand, 1020-1040 parts of gravel, 80-125 parts of fly ash, 40-60 parts of rice hull ash, 6-7.5 parts of a water reducing agent, 9-10 parts of a shrinkage reducing agent, 12.5-14 parts of an excitant, 1.1-1.8 parts of cellulosic fibers, 16-20 parts of a carboxyl butadiene styrene polymer an 1.7-1.8 parts of an antifoaming agent. The prepared concrete has high toughness and excellent durability, has high bonding strength with section steel, can effectively achieve the cooperative working performance between the section steel and the concrete when applied to a section steel and concrete combined structure, and overcomes the defects that the adhesive property between the section steel and the concrete is poor and respective mechanical properties of the two cannot be fully achieved.

Description

technical field [0001] The invention belongs to the field of building materials, and is a kind of concrete with high toughness, high durability and high volume stability mixed with cellulose fiber, rice husk ash and carboxylated styrene-butadiene polymer, and specifically relates to a high-strength concrete with C60 strength grade. Performance fiber concrete and method for its preparation. Background technique [0002] The annual output of silica fume in my country is only 3000t-4000t, which can only meet the needs of some special concrete, limiting its large-scale use. And my country, as a large agricultural country, produces more than 40 million tons of rice husks every year, accounting for more than 30% of the world's total output. At present, except for some rice husks that are used in power plants for power generation, most of the rice husks are still piled up naturally or burned in the open air, which wastes resources and emits a large amount of carbon dioxide to poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/24C04B18/10
CPCC04B18/101C04B18/24C04B28/04C04B2201/10C04B2201/50C04B22/002C04B14/068C04B14/28C04B18/08C04B24/24C04B2103/0068C04B22/147C04B22/124C04B24/122C04B24/2688C04B24/2641Y02W30/91
Inventor 郑山锁龙立董方园郑捷明铭郑淏宋明辰阮升董立国牛丽华曹琛王帆
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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