Effects of Mineral Admixtures on Chloride Diffusion in Environment-Friendly Coral Aggregate Concrete

doi:10.32604/jrm.2022.021282

CORC > 兰州理工大学 > 兰州理工大学

	Effects of Mineral Admixtures on Chloride Diffusion in Environment-Friendly Coral Aggregate Concrete
	Huang, Daguan 2; Niu, Ditao 3; Su, Li 1; Zheng, Hao 3; Fu, Qiang 3; Liu, Yunhe 2
刊名	JOURNAL OF RENEWABLE MATERIALS
	2022-06-01
关键词	Tidal zone coral aggregate concrete chloride diffusion behavior porosity correlation analysis
ISSN号	2164-6325
DOI	10.32604/jrm.2022.021282
英文摘要	Coral materials can replace concrete aggregates and achieve material self-sufficiency for reducing the construction costs of island projects. This paper studies the effects of different mineral admixtures on the properties of coral aggregate concrete (CAC). The chloride concentration of CAC after different erosion times is measured using the potentiometric method, and the porosity of the CAC is calculated using thermogravimetric and drying methods. The chloride concentration of the CAC presents a two-phases distribution. The peak chloride concentration followed a power function, increasing with the erosion time. The chloride diffusion coefficient of CAC is 7.9%??? 37.5% larger than that of ordinary aggregate concrete, and the addition of 15% fly ash and 5% silica fume can significantly reduce the chloride diffusion coefficient, with a maximum reduction of 45.0%. The porosity obtained via the thermogravimetric and drying methods is well correlated. The porosity has a strong negative correlation with the compressive strength and a strong positive correlation with the chloride diffusion coefficient.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Polymer Science
语种	英语
出版者	TECH SCIENCE PRESS
WOS记录号	WOS:000809586300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158931]
专题	兰州理工大学
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China 2.Xian Univ Technol, Sch Civil Engn & Architecture, Xian 710048, Peoples R China; 3.Xian Univ Architecture & Technol, Coll Civil Engn, Xian 710055, Peoples R China;
推荐引用方式 GB/T 7714	Huang, Daguan,Niu, Ditao,Su, Li,et al. Effects of Mineral Admixtures on Chloride Diffusion in Environment-Friendly Coral Aggregate Concrete[J]. JOURNAL OF RENEWABLE MATERIALS,2022.
APA	Huang, Daguan,Niu, Ditao,Su, Li,Zheng, Hao,Fu, Qiang,&Liu, Yunhe.(2022).Effects of Mineral Admixtures on Chloride Diffusion in Environment-Friendly Coral Aggregate Concrete.JOURNAL OF RENEWABLE MATERIALS.
MLA	Huang, Daguan,et al."Effects of Mineral Admixtures on Chloride Diffusion in Environment-Friendly Coral Aggregate Concrete".JOURNAL OF RENEWABLE MATERIALS (2022).