Modulation of the workability and Ca/Si/Al ratio of cement-metakaolin cementitious material system by using fly ash: Synergistic effect and hydration products

Shenyu Wang,Xiaowei Gu,Jianping Liu,Zhenguo Zhu,Hongyu Wang,Xiaowei Ge,Xiaochuan Xu,Moncef L. Nehdi

CONSTRUCTION AND BUILDING MATERIALS（2023）

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摘要

•Introducing FA to adjust fresh behaviors of OPC-MK cementitious material system.•The synergistic effects of SCMs indicate the filling effect and pozzolanic reaction.•Hydration products of OPC-MK-FA system were beneficial to the Al-rich system.•Modification of gels and pores are the contributions of FA to OPC-MK system.

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关键词

AFm,AFt,C-A-S-H,CH,C-S-H,EDS,FA,FTIR,GWP,Hc,ISO,MIP,MK,Mc,OPC,PSD,SCM,SEM,XRD,XRF

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