Effect of Mineral Admixture and Fibers on Shrinkage Crack of Sacrificial Concrete

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	Effect of Mineral Admixture and Fibers on Shrinkage Crack of Sacrificial Concrete
	Jin, Zuquan 1; Zhao, Xia2 ; Zhao, Tiejun 1; Cao, Yuanchao 1
刊名	JOURNAL OF ADVANCED CONCRETE TECHNOLOGY
	2016-09-01
卷号	14 期号:9 页码:502-510
英文摘要	The ferro-siliceous sacrificial concrete is an important protection material to Nuclear power plant, high density aggregate and high fluidity can lead to occurrence of shrinkage crack. In this paper, the early-age crack and restrained shrinkage crack of sixteen types of sacrificial concrete containing different content of cementitious materials and two kinds of fibers were researched. Results showed that the workability of sacrificial concrete decreased with increasing addition of fiber, and the slump loss resulted from polypropylene (PP) fiber was much higher than that of basalt fiber. The fibers had less influence on the compressive strength, while had greater impact on the flexural strength, which was improved by 10-20%. The reduction of total cementitious materials and replacement ratio increment of mineral admixtures including fly ash and Ground Granulated Blastfurnace Slag (GGBS) in sacrificial concrete could decrease its early-age crack obviously. The utilization of 1.0-1.5kg/m(3) PP fiber could extend the cracking time and reduce the crack width of sacrificial concrete and total cracking area. The improving crack resistance capacity of sacrificial concrete resulted by basalt fiber was weaker than PP fiber. The optimized mix proportion of sacrificial concrete mixture was 450kg/m(3) total cementitious materials, 50% replacement ration of mineral admixtures and 1.0kg/m(3) PP fiber.
收录类别	SCI
语种	英语
WOS记录号	WOS:000386680500002
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/135942]
专题	海洋研究所_海洋腐蚀与防护研究发展中心海洋研究所_海洋地质与环境重点实验室
作者单位	1.Qingdao Univ Technol, Coll Civil Engn, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Jin, Zuquan,Zhao, Xia,Zhao, Tiejun,et al. Effect of Mineral Admixture and Fibers on Shrinkage Crack of Sacrificial Concrete[J]. JOURNAL OF ADVANCED CONCRETE TECHNOLOGY,2016,14(9):502-510.
APA	Jin, Zuquan,Zhao, Xia,Zhao, Tiejun,&Cao, Yuanchao.(2016).Effect of Mineral Admixture and Fibers on Shrinkage Crack of Sacrificial Concrete.JOURNAL OF ADVANCED CONCRETE TECHNOLOGY,14(9),502-510.
MLA	Jin, Zuquan,et al."Effect of Mineral Admixture and Fibers on Shrinkage Crack of Sacrificial Concrete".JOURNAL OF ADVANCED CONCRETE TECHNOLOGY 14.9(2016):502-510.