Characteristic microstructural phase evolution and the compressive strength development mechanisms of tricalcium silicate pastes under various initial carbonation curing environments

Seongmin Cho,Heongwon Suh,Sumin Im,Gyeongryul Kim,Manabu Kanematsu,Satoshi Morooka,Akihiko Machida,Takahisa Shobu,Sungchul Bae

Construction and Building Materials（2023）

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摘要

•Microstructure of C3S paste under various carbonation curing environments was studied.•Phase evolution mechanisms of C3S under carbonation curing environment was clarified.•Decalcification of CSH deteriorated the microstructure of C3S pastes.•Evolution of CaCO3 and low-Ca/Si CSH enhanced the compressive strength of C3S paste.

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关键词

Tricalcium silicate,Carbonation curing,Decalcified C–S–H,Microstructure,Carbon capture, utilization, and storage (CCUS)

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