Utilization of coal gangue powder to improve the sustainability of ultra-high performance concrete

Di Wu, Tao Chen,Dongshuai Hou, Xiuxin Zhang,Muhan Wang,Xinpeng Wang

Construction and Building Materials（2023）

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摘要

•Calcined CG exhibits the higher chemical activity.•Adding CG powder decreases the packing density and workability.•The slight gap in compressive strength is obtained between UHPC using CG and C-CG.•CG powder could be employed directly in UHPC without a calcination process.

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关键词

coal gangue powder,concrete,ultra-high

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