基于因子设计法优化和预测水下不分散混凝土的抗分散性能
作者:
作者单位:

1.石家庄铁道大学 材料科学与工程学院,河北 石家庄 050043;2.河北省交通工程与环境 协同发展新材料重点实验室,河北 石家庄 050043;3.石家庄铁道大学四方学院 基础部,河北 石家庄 051132

作者简介:

张 营(1994—),女,河北保定人,石家庄铁道大学硕士生. E-mail:Zy202021@126.com

通讯作者:

张国强(1977—),男,河北张家口人,石家庄铁道大学四方学院讲师,硕士. E-mail: zhangguoqiang801@sohu.com

中图分类号:

TU528.01

基金项目:

国家自然科学基金资助项目(51778378)


Optimization and Prediction for Anti-washout Ability of Underwater Concrete Based on Factorial Design
Author:
Affiliation:

1.School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;2.Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China;3.Foundational Subjects Department, Shijiazhuang Tiedao University Si Fang College,Shijiazhuang 051132, China

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    摘要:

    为了对影响水下不分散混凝土施工质量最关键的3个技术指标(絮凝性、流动性和水陆强度比)进行优化设计以及预测,在试验数据的基础上,采用因子设计法对其进行了优化计算和建模.试验设计了3个因子:水胶比(mW/mB)为0.35~0.45,絮凝剂(AWA)用量为0.20%~1.50%,减水剂(PC)用量为1.20%~1.80%.结果表明:水下不分散混凝土最佳水灰比、AWA用量和PC用量分别为0.39、0.86%、1.47%,预测水下不分散混凝土对应的扩展度为184.0 mm,悬浊物含量为113.2 mg/L,水陆强度比为77.4%.

    Abstract:

    In order to optimize the design and forecast of the three most critical technical indicators that affect the quality of underwater concrete construction: anti-washout, slump and underwater/in-air strength ratio. Based on the experimental data, the factorial design method was used to optimize calculation and modeling. In the experiment, the water-binder ratio(mW/mB) was from 0.35 to 0.45, and the amount of anti-washout admixture(wAWA) was 0.20%~1.50%, the amount of superplasticizer(wPC) was from 1.20% to 1.80%. The results show that underwater concrete has excellent properties. The best values of mW/mBwAWA and wPC are 0.39, 0.86% and 1.47%, respectively. The theoretical prediction is that the corresponding slump of underwater concrete is 184.0 mm and the suspension content is 113.2 mg/L, the underwater/in-air strength ratio is 77.4%.

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引用本文

张营,孙国文,张国强,王彩辉,王亚倩.基于因子设计法优化和预测水下不分散混凝土的抗分散性能[J].建筑材料学报,2022,25(5):509-515

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  • 收稿日期:2021-02-28
  • 最后修改日期:2021-07-06
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  • 在线发布日期: 2022-06-24
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