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Research and Progress on Durability of Concrete under Combined Mechanical Load and Environment Actions(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2018年第11期
Page:
31-35
Research Field:
特约研究论文
Publishing date:

Info

Title:
Research and Progress on Durability of Concrete under Combined Mechanical Load and Environment Actions
Author(s):
YAO Yan WANG Ling WANG Zhendi CAO Yin TANG Guanbao DU Peng HUANG Pengfei
(State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China)
Keywords:
concrete durability mechanical load environment action evaluation technique service life prediction
CLC:

PACS:
-
DOI:
10.7502/j.issn.1674-3962.2018.11.03
DocumentCode:

Abstract:
Concrete is an indispensable engineering material for infrastructure construction, and its durability is of great importance for the service life of concrete structures in service environments. External load causes the change of microstructure and pore structure of concrete, which affects the penetration and transportation of medium into the concrete matrix. When the load is large, micro cracks appear inside the concrete matrix and the connectivity increases gradually. The combined mechanical and environmental action leads to accelerated degradation of concrete performance. Therefore, durability of concrete under combined mechanical load and environmental actions has become a hot topic at home and abroad in recent years. The present paper reviews the exploration and research progress of concrete durability research under the combined mechanical load and environmental actions. The paper summarizes the important breakthroughs in the characterization parameters and evaluation of concrete durability under combined load and freezethaw cycles, load and chloride salt, load and carbonation, respectively. The latest research progress of the service life prediction models and methods for concrete under the combination of load and freezethaw cycles, load and chloride salts is introduced. In addition, the limitations of the existing research related to durability of concrete under combined mechanical load and environmental actions as well as the corresponding research prospective are outlined.


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Last Update: 2018-12-10