基于通用旋转组合设计的层布式混杂纤维混凝土配合比研究

韩建宏; 娄宗科; 梁建

doi:10.13204/j.gyjz201107020

基于通用旋转组合设计的层布式混杂纤维混凝土配合比研究

doi: 10.13204/j.gyjz201107020

1.
西北农林科技大学水利与建筑工程学院,陕西杨凌712100

详细信息

作者简介:
韩建宏, 女, 1985年出生, 硕士. E－mail:hanjianhong2007@yahoo.cn

中图分类号: TU528.572
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- 被引次数: 0
出版历程
- 收稿日期: 2010-06-25
- 刊出日期: 2011-07-20

RESEARCH ON THE MIX PROPORTION OF THE LAYER CARBON FIBER AND POLYPROPYLENE FIBER CONCRETE BASED ON THE CURRENT ROTATING COMBINATION DESIGN

1.
College of Hydraulic &Architectural Engineering,Northwest Scien-Tech University of Agriculture and Forestry,Yangling 712100,China

摘要

摘要: 采用四因子二次回归通用旋转组合设计,对影响层布式碳纤维-聚丙烯混杂纤维混凝土力学性能的主要因素:水胶比、粉煤灰掺量、聚丙烯纤维掺量和碳纤维掺量,进行配合比试验,建立数学模型并确定其最优配比。结果表明:二次多项式回归模型可用于层布式混杂纤维混凝土28 d抗压强度和抗折强度回归方程的建立。层布式碳纤维-聚丙烯混杂纤维混凝土28 d抗压强度理论最大值可达到68.21 MPa,此时W/C为0.3,粉煤灰掺量、聚丙烯纤维掺量和碳纤维掺量均为0;而抗折强度最大值可达到8.84 MPa,此时水胶比为0.3,粉煤灰掺量为0,聚丙烯纤维掺量为1.2%,且碳纤维掺量为1.6%,进一步表明了聚丙烯纤维和层布式的碳纤维对混凝土抗压强度影响不大,但一定程度上可以显著改善其抗折强度。
- 层布式混杂纤维混凝土 /
- 二次回归通用旋转组合设计 /
- 抗压强度 /
- 抗折强度
Abstract: Some mix tests were carried out for the main factors that effect the 28 d mechanical properties of the layer carbon fiber and polypropylene fiber concrete,such as water-binder ratio,the content of fly ash,the content of the polypropylene fiber and the content of the carbon fiber;then a mathematical model was set up and the optimal mix was determined through the secondary regressive rotating combination design of four factors.The result shows that quadratic polynomial regression model can be used to establish the regression equation of the 28 d compressive strength and flexural strength of the layer carbon fiber and polypropylene fiber conrete.When the water-binder ratio is 0.3,the content of fly ash,the content of the polypropylene fiber and the carbon fiber are zero,the 28 d compressive strength of the layer carbon fiber and polypropylene fiber can reach the maximum 68.21 MPa;while the four factors respectively are 0.3,0,1.2% and 1.6%,the maximum 28 d flexural strength is 8.84 MPa.The effect of polypropylene fiber and the layer carbon fiber on the concrete compressive strength is little,but significant on the concrete flexural strength.
- layer carbon fiber and polypropylene fiber concrete /
- secondary regressive ratating combination design /
- compressive strength /
- flexural strength

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参考文献(11)

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