Effect of Concrete Micro-Mechanical Properties under the Coupled Corrosion of Sulfate and High Water Head

doi:10.3390/en14165039

	Effect of Concrete Micro-Mechanical Properties under the Coupled Corrosion of Sulfate and High Water Head
	Li, Ruixin 1; Hou, Huiming 2; Hu, Dawei 3; Zou, Yiquan 1
刊名	ENERGIES
	2021-08-01
卷号	14 期号:16 页码:21
关键词	micro-indentation high water head sulfate attack micromechanics
DOI	10.3390/en14165039
英文摘要	Large-scale water infrastructure such as immersed tunnels remain in a seawater environment for a long time, and gradually deteriorate under the action of high water head, soil pressure and corrosive ions in seawater solution. In order to simulate the corrosion damage and deterioration of concrete in seawater environment, 10% Na2SO4 solution was used to conduct indoor corrosion tests on concrete samples under different water heads and for different durations. The corrosion damage and micro-mechanical properties of concrete under the coupled action of high water head and sulfate are studied by micro-indentation tests. The effect of sulfate ion corrosion and complex mechanical loading was studied. The effect of micro-mechanical properties of concrete is studied on time and space. Numerical simulation and test results show that the results of micro-indentation are in good agreement with the fitting curves. The chemical damage rate and the corrosion depth increase with the increase of water head; the numerical simulation analysis shows that the sulfate concentration is high in the area where the mechanical damage variable is large, which indicates that the two kinds of corrosion occur in concrete and interact with each other.
资助项目	Chinese national key research and development project[2018YFC0809601] ; Jiangxi Province Natural Science Foundation[20202BABL214052] ; Hubei Province Technological Innovation Special Large Project[2017AAA128] ; National Natural Science Foundation of China[51779252]
WOS研究方向	Energy & Fuels
语种	英语
出版者	MDPI
WOS记录号	WOS:000689273800001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27853]
专题	中科院武汉岩土力学所
通讯作者	Zou, Yiquan
作者单位	1.Hubei Univ Technol, Sch Civil Architecture & Environm, Wuhan 430068, Peoples R China 2.Shantou Univ, Coll Engn, Shantou 515063, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Li, Ruixin,Hou, Huiming,Hu, Dawei,et al. Effect of Concrete Micro-Mechanical Properties under the Coupled Corrosion of Sulfate and High Water Head[J]. ENERGIES,2021,14(16):21.
APA	Li, Ruixin,Hou, Huiming,Hu, Dawei,&Zou, Yiquan.(2021).Effect of Concrete Micro-Mechanical Properties under the Coupled Corrosion of Sulfate and High Water Head.ENERGIES,14(16),21.
MLA	Li, Ruixin,et al."Effect of Concrete Micro-Mechanical Properties under the Coupled Corrosion of Sulfate and High Water Head".ENERGIES 14.16(2021):21.