Effects of Crushing and Grinding on the Porosity of Hardened Cement Paste
Mohamed ElKarim Bouarroudj,
Sébastien Rémond,
Bogdan Cazacliu
et al.
Abstract:The objective of this paper was to study the impact of crushing and grinding on the porosity of hardened cement paste, which is responsible for the high values of recycled concrete aggregate (RCA) water absorption. Hardened cement pastes with three different water to cement ratios have been crushed in one to three steps with a jaw crusher to produce aggregate larger than 2 mm and ground with a disc crusher in order to produce particles lower than 150 µm. Water absorption tests and mercury intrusion porosimetry… Show more
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