文献类型：期刊文献

英文题名：Creep analysis of concrete with different mineral admixtures

作者：He, Zhihai[1,2,3];Qian, Chunxiang[2];Li, Longyuan[3];Du, Shigui[1]

机构：[1]Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Peoples R China;[2]Southeast Univ, Coll Mat Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China;[3]Univ Plymouth, Sch Marine Sci & Engn, Plymouth PL4 8AA, Devon, England

年份：2016

卷号：6

期号：4

起止页码：328

外文期刊名：MATERIALS EXPRESS

收录：SCI-EXPANDED(收录号：WOS:000386526600004)、、Scopus(收录号：2-s2.0-84988410135)、WOS

基金：The authors would like to acknowledge the National Natural Science Foundation of China (Grant No. 41427802) and the Shaoxing University Scientific Research Project (Grant No. 20145030) for their financial support to the work presented in this paper.

语种：英文

外文关键词：Creep; Concrete; Mineral Admixture; Compressive Strength; Elastic Modulus

外文摘要：In order to comprehensively master the effect of different mineral admixtures on the creep behavior of concrete, the mechanical properties and creep of concrete with active mineral admixtures (i.e., fly ash (FA), ground granulated blast-furnace slag (GGBS), metakaolin (MK)) and inert mineral admixtures (i.e., limestone powder (LP), quartz sand powder (QSP) and emery powder (EP)) were studied by using a self-made testing device. The corresponding effect mechanism was also analyzed according to the internal relative humidity (IRH) and pore microstructure organization of the mixed concrete. The results show that the use of FA and/or GGBS can reduce the creep of concrete, and more creep can be reduced if both MK and inert mineral admixtures are used, although different mineral admixtures have different effects on the compressive strength and elastic modulus of the mixed concrete. The correlation between specific creep and IRH can be characterized in three different zones. The combined use of FA and GGBS can reduce the pore volume of pores of different sizes, and the concrete mixes with MK and inert mineral admixtures have very similar pore size distribution to provide more resistance to their creep.