Advances in Gas Permeability Test Methods and Its Relationships with Durability for Cementitious Materials

doi:10.11896/cldb.20040016

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	Advances in Gas Permeability Test Methods and Its Relationships with Durability for Cementitious Materials
	Shi, Jiashun 2,3; Qian, Rusheng 2,3; Zhang, Yunsheng 1,2,3; Chen, Yidong 2,3; Qian, Jiajia 2,3; Liu, Zhiyong 2,3
刊名	Cailiao Daobao/Materials Reports
	2021-01-10
卷号	35 期号:1 页码:01121-01130
关键词	Carbonization Chlorine compounds Concretes Diffusion Gas permeability Gases Surface testing Testing Cementitious materials Chloride ion diffusion coefficient Chloride permeability Concrete durability Engineering materials Liquid permeability Orders of magnitude Permeability testing
ISSN号	1005-023X
DOI	10.11896/cldb.20040016
英文摘要	The concrete durability has always been a research hotspot in the field of civil engineering materials, and permeability is taken as key point for its durability. The methods of permeating testing can be classified as three types according to different permeation mediums: water permeability testing, chloride permeability testing and gas permeability testing. Gas permeability method has its advantages of the testing procedure without damages on the composition and microstructure of materials, and thus having been adopted gradually by scholars. Currently, the commonly used methods of gas permeability testing can be classified as field testing and laboratory operating methods. The former mainly include drilling testing method and surface testing method, while the latter are classified as constant-pressure flow method and variable-pressure method. However, the results obtained by various testing methods are generally hard to be compared, or even of entirely different orders of magnitude, with each other. Besides, though gas permeability can be used as an important indicator for concrete durability, few works has focused on its effect to the durability. Therefore, the current key point is to establish the conversion relationship between various testing methods and the relationship between gas permeability and other durability indicators. This review has summarized systematically the testing theories and method principles for concrete and established the quantitative relationships between gas permeability and other durability indicators including liquid permeability, gas diffusion coefficient, chloride-ion diffusion coefficient and carbonization. It is expected to be beneficial to the enhancement of gas permeability utilization, and to provide theoretical knowledge and scientific basics for evaluating the durability of cementitious materials. © 2021, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147690]
专题	兰州理工大学
作者单位	1.College of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China 2.School of Materials Science and Engineering, Southeast University, Nanjing; 211189, China; 3.Key Laboratory for Civil Engineering Material of Jiangsu, Nanjing; 211189, China;
推荐引用方式 GB/T 7714	Shi, Jiashun,Qian, Rusheng,Zhang, Yunsheng,et al. Advances in Gas Permeability Test Methods and Its Relationships with Durability for Cementitious Materials[J]. Cailiao Daobao/Materials Reports,2021,35(1):01121-01130.
APA	Shi, Jiashun,Qian, Rusheng,Zhang, Yunsheng,Chen, Yidong,Qian, Jiajia,&Liu, Zhiyong.(2021).Advances in Gas Permeability Test Methods and Its Relationships with Durability for Cementitious Materials.Cailiao Daobao/Materials Reports,35(1),01121-01130.
MLA	Shi, Jiashun,et al."Advances in Gas Permeability Test Methods and Its Relationships with Durability for Cementitious Materials".Cailiao Daobao/Materials Reports 35.1(2021):01121-01130.