[1]蔡渝新,刘清风.混凝土拌合物稳定性及其对工程结构耐久性影响的研究进展[J].西安建筑科技大学学报(自然科学版),2023,55(04):492-503.[doi:10.15986/j.1006-7930.2023.04.003 ]
　CAI Yuxin,LIU Qingfeng.Research progress on the stability of concrete mixtures and its influence on the durability of engineering structures[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(04):492-503.[doi:10.15986/j.1006-7930.2023.04.003 ]
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混凝土拌合物稳定性及其对工程结构耐久性影响的研究进展()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年04期
页码:
492-503
栏目:
出版日期:
2023-10-26

文章信息/Info

Title:
Research progress on the stability of concrete mixtures and its influence on the durability of engineering structures
文章编号:
1006-7930(2023)04-0492-12
作者:
蔡渝新1; 2; 刘清风1; 2
(1.上海交通大学 海洋工程国家重点实验室，上海 200240; 2.上海市公共建筑和基础设施数字化运维重点实验室，上海 200240)
Author(s):
CAI Yuxin1; 2;  LIU Qingfeng1; 2
(1.State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2.Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai 200240, China)
关键词:
稳定性;  评价方法;  影响因素;  钢筋混凝土;  耐久性
Keywords:
stability;  evaluation methods;  influence factors;  reinforced concrete;  durability
分类号:
TU528
DOI:
10.15986/j.1006-7930.2023.04.003
文献标志码:
A
摘要:
在实际工程中,要求新拌混凝土大流动性的同时,还需充分考虑其稳定性以保证工程质量.本文对混凝土拌合物稳定性及其对工程结构耐久性影响的研究现状进行了综述,详细介绍了关于评价混凝土拌合物稳定性的试验和数值模拟方法; 综合分析了骨料、掺合料等原材料性能,水胶比、减水剂用量等配合比设计参数,以及现场施工因素对稳定性的影响; 系统探讨了混凝土拌合物的稳定性对其硬化后混凝土保护层渗透性、钢筋-混凝土界面缺陷和钢筋锈蚀起始时间的作用机理.
Abstract:
In practical engineering, the stability of fresh concrete should be fully considered to ensure the project quality while requiring the high flowability. In this paper, the current status of relevant studies on the stability of concrete mixtures and its influence on the durability of engineering structures is reviewed. Firstly, the experimental and numerical simulation methods for evaluating the stability of concrete mixtures are introduced in detail. After that, the effects of the properties of raw materials such as aggregates and admixtures, the mix proportion parameters such as water-to-binder ratio and water-reducing agent dosage, and the on-site construction factors on stability are comprehensively analyzed. Finally, the influence mechanisms of the stability of concrete mixtures on the permeability of concrete cover, the interfacial defect between steel bars and concrete, and the initiation time of reinforcement corrosion after concrete hardening are systematically discussed.

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备注/Memo

备注/Memo:
收稿日期:2022-11-01修回日期:2023-07-17
基金项目:国家自然科学优秀青年基金项目(52222805); 上海市自然科学基金项目(22ZR1431400); 上海交通大学深蓝计划基金项目(SL2021MS016)
第一作者:蔡渝新(1994—)，男，博士生，主要从事新拌混凝土流变性能、钢筋混凝土结构耐久性、绿色低碳胶凝材料等方向研究.E-mail:yuxin.cai@sjtu.edu.cn
通信作者:刘清风(1986—)，男，教授，博士生导师，主要从事钢筋混凝土结构耐久性、多孔介质中多离子传输、细微观尺度数值模拟、电化学修复与防护技术等方向研究.E-mail:liuqf@sjtu.edu.cn
更新日期/Last Update: 2023-08-28