@article{fb2e23d556c948a990824ad69c7fe53d,
title = "Creep and thermal cracking of ultra-high volume fly ash mass concrete at early age",
abstract = "An experimental study characterized fresh and hardened ultra-high volume fly ash mass concrete (HP-HVFA, with 80% fly ash and a water-to-binder ratio of 0.26) and normal content fly ash mass concrete (NS-FA, with 35% fly ash and a water-to-binder ratio of 0.43). The creep and thermal cracking behaviors of the HP-HVFA and NS-FA concrete were evaluated using a temperature stress testing machine (TSTM). A series of TSTM tests were conducted under an adiabatic curing mode and a temperature matched curing (TMC) mode. The results indicate that HP-HVFA concrete had moderate strength at early age and desirable fresh and hardened engineering properties. Under the both curing modes studied, HP-HVFA exhibited lower hydration temperature rise. Under the TMC mode, both compressive and tensile creep of HP-HVFA were lower than that of NS-FA although their specific creep and creep-to-shrinkage strain ratio at time of cracking were almost the same. Under adiabatic mode, HP-HVFA had higher creep strain, specific creep, and creep-to-shrinkage strain ratio than NS-FA.",
keywords = "Creep, Early age, TSTM test, Thermal cracking, Ultra-high volume fly ash mass concrete",
author = "Zhifang Zhao and Kejin Wang and Lange, {David A.} and Hougui Zhou and Weilun Wang and Dongming Zhu",
note = "Funding Information: This work was supported by a grant from the National Natural Science Foundation of China (Grant No. 51479178 and No. 51879235), Zhejiang Provincial Natural Science Foundation of China (LY14E090006), Guangdong Provincial Key Laboratory of Durability for Civil Engineering (GDDCE15-01, GDDCE14-01), Postgraduate Education Reform Project(2016-ZX-236) and China International Science and Technology Cooperation Base (2017D01023). China Gezhouba Group Testing Co. Ltd, especially Mr. Zhenyu Zhang, Mr. Kaiyan Tan and Ms. Shengmin Zhu are highly appreciated for their contributions to this work. Professor S.P. Shah, Prodessor Weizhu Qin, Mr. Yin Bai and Mr. Tao Zhang are also highly appreciated for their valuable suggestions to this work. We also acknowledge funding support from the RE-CAST University Transportation Center at Missouri University of Science and Technology for D.A. Lange at the University of Illinois. Funding Information: This work was supported by a grant from the National Natural Science Foundation of China (Grant No. 51479178 and No. 51879235 ), Zhejiang Provincial Natural Science Foundation of China ( LY14E090006 ), Guangdong Provincial Key Laboratory of Durability for Civil Engineering ( GDDCE15-01 , GDDCE14-01 ), Postgraduate Education Reform Project ( 2016-ZX-236 ) and China International Science and Technology Cooperation Base ( 2017D01023 ). China Gezhouba Group Testing Co. Ltd , especially Mr. Zhenyu Zhang, Mr. Kaiyan Tan and Ms. Shengmin Zhu are highly appreciated for their contributions to this work. Professor S.P. Shah, Prodessor Weizhu Qin, Mr. Yin Bai and Mr. Tao Zhang are also highly appreciated for their valuable suggestions to this work. We also acknowledge funding support from the RE-CAST University Transportation Center at Missouri University of Science and Technology for D.A. Lange at the University of Illinois . Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",
year = "2019",
month = may,
doi = "10.1016/j.cemconcomp.2019.02.018",
language = "English (US)",
volume = "99",
pages = "191--202",
journal = "Cement and Concrete Composites",
issn = "0958-9465",
publisher = "Elsevier Limited",
}