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Abstract
Thermogravimetric (TG) analysis was applied to the characterisation of the pozzolanic reaction in mortars containing the supplementary cementitious materials (SCMs) pitchstone fines (PF) and fly ash (FA) as partial replacements for Portland cement (PC). TG analysis was used to determine the proportion of calcium hydroxide (CH) present from the hydration of the PC based on the dehydroxylation of the CH present in the blended PC-SCM mortars. The consumption of CH indicated that both SCMs underwent the pozzolanic reaction and that PF was found to compare favourably in its pozzolanic reactivity of FA, the industry and globally accepted standard artificial pozzolan.
Early stages hydration of high initial strength Portland cement
Part I. thermogravimetric analysis on calcined mass basis
, Ray , AS , Guerbois , J-P , Joyce , P , Haggman , J 2009 Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by thermogravimetric analysis . J Therm Anal Calorim 97 1 71 – 76 10.1007/s10973
. Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by thermogravimetric analysis . J Therm Anal Calorim . 2009 . http://dx.doi.org/10.1007/s10973-008-9708-5 . 31
Guerbois JP Joyce P Haggman J . Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by
-008-9668-9 . 46. Vessalas , K , Thomas , PS , Ray , AS , Guerbois , J-P , Joyce , P , Haggman , J 2009 Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by thermogravimetric analysis . J Therm
. Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by thermogravimetric analysis . J Therm Anal Calorim . 2009 ; 97 : 71 – 76 . 10.1007/s10973-008-9708-5 . 3
Quantitative study of hydration of C3S and C2S by thermal analysis
Evolution and composition of C–S–H gels formed
-008-9668-9 . 31. Vessalas K , Thomas PS , Ray AS , Guerbois J-P , Joyce P , Haggman J . Pozzolanic reactivity of the supplementary cementitious material pitchstone fines by thermogravimetric analysis . J
pitchstone fines by thermogravimetric analysis . J Therm Anal Calorim . 2009 ; 97 : 71 – 76 . 10.1007/s10973-008-9708-5 . 26. Kosmatka , SH , Kerkhoff , B , Panarese , WC , MacLeod
