• 首页
  • 期刊介绍
  • 编委会
  • 征稿启事
  • 期刊订阅
  • 相关下载
  • 联系我们
多目标性能需求的C50混凝土配合比优化设计方法
Optimization Design Method of Mix Proportion for C50 Concrete of Multi purpose Performance Requirements
投稿时间:2018-07-12  修订日期:2018-07-30
DOI:103969/j.issn.1007 9629201904001
中文关键词:  多目标  客观权重赋予  灰色关联度分析  优化设计  配合比
英文关键词:multi purpose  objective weight assignment  grey relational analysis  optimization design  mix proportion
基金项目:“十三五”国家重点研发计划项目(2018YFC0705404);国家自然科学基金资助项目(51878480,51678442,51878481,51878496);中央高校基本科研业务费专项资金资助项目
        
作者单位
蒋正武
JIANG Zhengwu
同济大学先进土木工程材料教育部重点实验室,上海201804
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China
徐春普
XU Chunpu
同济大学先进土木工程材料教育部重点实验室,上海201804
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China
张盛
ZHANG Sheng
江苏诚意工程技术研究院,江苏徐州221000
Jiangsu ChengYi Engineering Technology Institute, Xuzhou 221000, China
摘要点击次数: 171
全文下载次数: 0
中文摘要:
      针对工程用混凝土的多目标性能(工作性能、抗裂性能、力学性能和耐久性能)需求,提出了一种客观权重赋予灰色关联度分析的混凝土配合比优化设计新方法.采用正交试验法研究了水胶比、砂率、胶凝材料总量、矿物掺和料用量和粉煤灰矿粉质量比等因素对C50混凝土工作性能、抗裂性能、力学性能和耐久性能的影响,利用客观权重赋予技术确定了各项性能的客观权重,实现了C50高抗裂高性能混凝土配合比的优化设计,得到了最佳配合比,并结合试验数据验证了其综合性能.结果表明:客观权重赋予灰色关联度分析方法可实现基于多目标性能需求的C50混凝土配合比优化设计,在一定试验条件下,C50高抗裂高性能混凝土最佳配合比参数为:水胶比030,砂率35%,胶凝材料总量420kg/m3,矿物掺和料用量30%,粉煤灰与矿粉质量比2∶1.经验证,该配合比的混凝土满足多目标性能需求.
英文摘要:
      To meet a series of special performance requirements for concrete of engineering use, such as workability, cracking resistant performance, mechanical performance and durability, a new optimization method of concrete mix proportion design was proposed based on objective weight assignment and grey relational analysis. The orthogonal test method was used to study the effects of water binder ratio, sand ratio, total amount of cementitious materials, amount of mineral admixtures and mass ratio of fly ash to slag on C50 concrete performance, including workability, cracking resistant performance, mechanical performance and durability. Based on objective weight of each performance determined by the technology of objective weight assignment, the optimum mix proportion of C50 high cracking resistant and high performance concrete was achieved. The comprehensive performance of concrete with the optimum mix proportion was verified by experiments. The results show that this method can successfully optimize mix proportion of C50 concrete to satisfy multi purpose performance requirements. For experiment condition in this research, the optimum mix proportion of C50 high cracking resistant and high performance concrete is 030 for water binder ratio, 35% for sand ratio, 420kg/m3 for the total amount of cementitious materials, 30% for mineral admixtures amount and 2∶1 for fly ash to slag mass ratio. The verification experiment confirmed that the optimized mix proportion of concrete meet the needs of the desired multi purpose performance.
查看全文  查看/发表评论  下载PDF阅读器
关闭