Reactivity Effect of Calcium Carbonate on the Formation of Carboaluminate Phases in Ground Granulated Blast Furnace Slag Blended Cements

Walid Deboucha, Nassim Sebaibi, Yassine El Mendili, Aurélie Fabien, U. Johnson Alengaram, Nordine Leklou, Mahmoud N Hamdadou, Alexandra Bourdot and Stéphanie Gascoin
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Walid Deboucha: COMUE NU, Laboratoire de Recherche ESITC Caen, 1 Rue Pierre et Marie Curie, 14610 Epron, France
Nassim Sebaibi: COMUE NU, Laboratoire de Recherche ESITC Caen, 1 Rue Pierre et Marie Curie, 14610 Epron, France
Yassine El Mendili: COMUE NU, Laboratoire de Recherche ESITC Caen, 1 Rue Pierre et Marie Curie, 14610 Epron, France
Aurélie Fabien: COMUE NU, Laboratoire de Recherche ESITC Caen, 1 Rue Pierre et Marie Curie, 14610 Epron, France
U. Johnson Alengaram: Centre for Innovative Construction Technology, Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Nordine Leklou: LUNAM University, University of Nantes-IUT Saint-Nazaire, GeM, CNRS UMR 6183, 44600 Saint-Nazaire, France
Mahmoud N Hamdadou: LUNAM University, University of Nantes-IUT Saint-Nazaire, GeM, CNRS UMR 6183, 44600 Saint-Nazaire, France
Alexandra Bourdot: LMT-Laboratoire de Mécanique et Technologie, Université Paris-Saclay, ENS Paris-Saclay, CNRS, 91190 Gif-sur-Yvette, France
Stéphanie Gascoin: CRISMAT-ENSICAEN, UMR CNRS 6508, Normandie Université, 6 Boulevard Maréchal Juin, 14050 Caen, France

Sustainability, 2021, vol. 13, issue 11, 1-16

Abstract: The reactivity effect of calcium carbonate, present in ground oyster shells and limestone filler, on the formation of carboaluminate phases in ground granulated blast furnace slag blended cement pastes was reported in this paper. Six different binary and ternary blended cement pastes were prepared using ground granulated blast furnace slag, ground oyster shells and limestone filler with different replacement levels (from 5 to 35%). The carboaluminate formation was assessed and quantified directly using X-ray diffraction (XRD), and indirectly by following the aluminate phase’s reaction (heat flow) and consumed calcium carbonate using Isothermal Calorimetry (IC) and Thermogravimetric Analysis (TGA), respectively. Further, the overall reaction degree calculated based on TGA results and the compressive strength were determined to support the findings obtained. The results revealed that the calcium carbonate present in ground oyster shells is more reactive when compared to that present in limestone filler, where more formed hemi- and monocarboaluminate phases were observed in mixtures containing ground oyster shells. An enhancement in compressive strength and overall reaction degree was observed by adding 5% ground oyster shells as cement replacement.

Keywords: oyster shells; limestone filler; slag; calcium carbonate; carboaluminate phases formation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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