干旱区生态环境知识资源中心(Arid): Drying Shrinkage and Suppression Technology of HPC in Extremely Arid Area

Arid

DOI	10.1007/s12205-017-0626-6
	Drying Shrinkage and Suppression Technology of HPC in Extremely Arid Area
	Yu, Hongfa; Zeng, Xiangchao
通讯作者	Zeng, Xiangchao
来源期刊	KSCE JOURNAL OF CIVIL ENGINEERING
ISSN	1226-7988
EISSN	1976-3808
出版年	2019
卷号	23 期号:1 页码:180-190
英文摘要	Supplementary materials Such As Slag (SG), Fly Ash (FA) and Silica Fume (SF) are necessary for reducing the drying shrinkage of High-performance Concrete (HPC) in arid environments and extremely arid area. This paper investigates the drying shrinkage of HPC with the composites of 10% Silica Fume (SF) and 20% Fly Ash (FA) additions and another HPC incorporated with 10% SF?20% FA and 20% slag (SG), which were exposed to the conditions of 30% Relative Humidity (RH) and 50% RH. The inhibitive mechanism of Aluminate Expansion Agent (AEA) on the drying shrinkage of HPC reveals that the dry shrinkage can be inhibited by the expansion agent as long as the high density of concrete structure and the internal surplus water can be ensured. Furthermore, the additions of the composites of SF, FA and SG, super-plasticizer, high modulus fiber (PF) and AEA, can reduce the drying shrinkage and improve the moisture sensitivity of shrinkage of the concrete. The drying shrinkage rate of HPC in extremely harsh environment decreased to about 300 x 10(-6) and no shrinkage cracks appeared on the surface of the HPC incorporated with SF, FA and SG. The perfect combination of high volume stability and high durability of HPC was realized.
英文关键词	High-Performance Concrete (HPC) drying shrinkage sensitivity of shrinkage extremely arid area double-mixing technology surplus water
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000453612900019
WOS关键词	AUTOGENOUS SHRINKAGE ; SILICA FUME ; CEMENT
WOS类目	Engineering, Civil
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217448
作者单位	Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 210016, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yu, Hongfa,Zeng, Xiangchao. Drying Shrinkage and Suppression Technology of HPC in Extremely Arid Area[J],2019,23(1):180-190.
APA	Yu, Hongfa,&Zeng, Xiangchao.(2019).Drying Shrinkage and Suppression Technology of HPC in Extremely Arid Area.KSCE JOURNAL OF CIVIL ENGINEERING,23(1),180-190.
MLA	Yu, Hongfa,et al."Drying Shrinkage and Suppression Technology of HPC in Extremely Arid Area".KSCE JOURNAL OF CIVIL ENGINEERING 23.1(2019):180-190.