Summary
Waste dolomite powder (WDP) is being actively investigated because the additive of Portland cement (PC) for reducing the vitality consumption and carbon emission of PC. On this work, 1H low-field nuclear magnetic resonance (1H NMR) was used to investigate the impacts of WDP on the hydration and pore construction of PC pastes on the early age. In the meantime, the compressive strengths of blended cements containing 5–20% WDP had been additionally measured. The outcomes present that the T2 common worth and evaporable water content material of all of the pastes lower dramatically from 0 to 24 h, and the discount price slows down after 24 h. Including 5% WDP can lower additional the T2 common worth and evaporable water content material attributed to its nucleating and filler impact, ensuing within the compacted pore construction and the upper power. Nevertheless, including greater than 5% WDP degrades the pore construction and lowers the compressive power.
Battle of curiosity assertion
No potential battle of curiosity was reported by the authors.
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