caa a22 4500 463188195 CHVBK 20180406164900.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8106-0 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8106-0 ATG analysis of the effect of calcination conditions on the properties of reactivemagnesia [Elektronische Daten] [B. Liu, P. Thomas, A. Ray, J. Guerbois] The reactivity of MgO obtained from calcination of magnesium carbonate at different temperatures has been investigated by means of hydration in a constant relative humidity environment at 40°C for periods up to 24 days. Natural magnesite and AR grade basic MgCO3 calcined in the range of 500-1000°C was characterised in terms of surface area, crystallite size, morphology, and hydration rate. It was found that the hydration rate is dependent on the surface area and crystallite size where temperature was the main variable affecting them. The most reactive MgO was produced at the lowest calcination temperature with the highest surface area and the smallest crystallite size. The basic MgO specimens showed higher degree of hydration compared to the natural MgO specimens due to the smaller surface area and larger crystallite size. The low MgO content of the starting natural magnesite is also attributable to the lower reactivity. This preliminary study serves as a mean to investigate potential utilisation of reactive MgO as a supplementary cementitious material in eco-friendly cements. Springer-Verlag, 2007 brucite nationallicence calcination nationallicence hydration nationallicence magnesia nationallicence magnesite nationallicence Liu B. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut Thomas P. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut Ray A. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut Guerbois J. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 145-149 1388-6150 88:1<145 2007 88 10973 https://doi.org/10.1007/s10973-006-8106-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8106-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu B. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut NATIONALLICENCE 700 1- Thomas P. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut NATIONALLICENCE 700 1- Ray A. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut NATIONALLICENCE 700 1- Guerbois J. Department Chemistry, Materials and Forensic Sciences, University of Technology Sydney, Broadway NSW 2007, PO Box 123, Sydney, Australia aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 145-149 1388-6150 88:1<145 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer