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Effect of polycarboxylate superplasticizer on hydration and properties of belite ye’elimite ferrite cement paste

Angélique Barneoud Chapelier 1 Gwenn Le Saout 1 Nathalie Azéma 1 Youssef El Bitouri 1 
1 DMS - Durabilité des éco-Matériaux et Structures
IMT - MINES ALES - IMT - MINES ALES, LMGC - Laboratoire de Mécanique et Génie Civil
Abstract : Belite-Ye’elimite-Ferrite (BYF) cements have received increasing attention in view of their lower CO2 footprint and their interesting performances. This work deals with the effect of polycarboxylate superplasticizer (SP) on BYF cement paste. It was found that SP dosage must be low in order to avoid destabilization, and thus improve the resistance to bleeding and segregation. Also, the good affinity of polycarboxylate-based superplasticizer with cement surface improves the cement particles dispersion and causes a significant diminution of the yield stress during the low activity period. Furthermore, it is shown that SP causes a delay in the early age hydration, inducing a decrease in the compressive strength at early age while it increases them after 90 days.
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Submitted on : Tuesday, August 23, 2022 - 3:50:45 PM
Last modification on : Wednesday, August 24, 2022 - 1:46:14 PM

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Angélique Barneoud Chapelier, Gwenn Le Saout, Nathalie Azéma, Youssef El Bitouri. Effect of polycarboxylate superplasticizer on hydration and properties of belite ye’elimite ferrite cement paste. Construction and Building Materials, Elsevier, 2022, 322, pp.126483. ⟨10.1016/j.conbuildmat.2022.126483⟩. ⟨hal-03758959⟩

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