文献类型：期刊文献

英文题名：Design and assessment of eco-friendly ultra-high performance concrete with steel slag powder and recycled glass powder

作者：Xu, Jing[1,2];Zhan, Peimin[1];Zhou, Wei[1];Zuo, Junqing[3];Shah, Surendra P.[4];He, Zhihai[5]

机构：[1]Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China;[2]Tongji Univ, Key Lab Adv Civil Engn Mat, Minist Educ, Shanghai 201804, Peoples R China;[3]Shanghai Construct Grp Co Ltd, Shanghai 200080, Peoples R China;[4]Univ Texas Arlington, Ctr Adv Construct Mat, Arlington, TX 76019 USA;[5]Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Peoples R China

年份：2023

卷号：419

外文期刊名：POWDER TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000948890600001)、、EI(收录号：20231113735822)、Scopus(收录号：2-s2.0-85149929693)、WOS

基金：Acknowledgements This work was supported by National Key Research and Develop-ment Program of China (2019YFC1906203) .

语种：英文

外文关键词：Ultra-high performance concrete; Steel slag powder; Glass powder; Microstructure; Eco-friendliness

外文摘要：An eco-friendly UHPC was designed by the modified Andreasen and Andersen packing model and prepared with cement partially replaced by steel slag powder (SSP) and glass powder (GP) at a fixed mass ratio of 2:1. An improved strengths and resistance to drying shrinkage was obtained with a combined replacement of SSP and GP, and the best one was achieved at the 20% replacement ratio. The leaching of Ca2+, Al(OH)(4), and SiO32 ions from SSP and GP promoted the hydration of cement. The potential cementitious activity of SSP and the pozzolanic activity of GP contributed simultaneously to the formation of extra hydration products, especially the high density C-S-H. As a result, the pore structure of the paste matrix was refined and the steel fiber/paste was enhanced. The UHPC developed with SSP and GP had lower carbon emissions and non-renewable energy consumption, which provides possibilities for its industrial application.