37 research outputs found
One-dimensional steady-state thermal model for rotary kilns used in the manufacture of cement
Peer reviewedPostprin
The impact of intrinsic anhydrite in an experimental calcium sulfoaluminate cement from a novel, carbon-minimized production process
Gulf Organisation for Research and Development EG016-RG11757 Open access via Springer Compcat Agreement The authors are grateful for the financial support of the Gulf Organization for Research and Development (GORD) through grant EG016-RG11757. Mr Mathieu Antoni of LafargeHolcim is thanked for his assistance in processing the grinding of the experimental clinker. Mr Theodore Hanein is thanked for insight gained in discussions regarding thermodynamic modelling of the CaO-Al2O3-SO3-SiO2 system within the kiln environment.Peer reviewedPublisher PD
Evidence of scawtite and tilleyite formation at ambient conditions in hydrated Portland cement blended with freshly-precipitated nano-size calcium carbonate to reduce greenhouse gas emissions
Acknowledgements We thank CCM for its financial support of a PhD student ship tenable by LJM. Electron Microscopy was performed in the ACEMAC Facility at the University of Aberdeen by Mr. J. Still. Several of our group have contributed to discussion and provided samples, so thanks go to Wanawan Pragot and M. Ara Carballo-MeilanPeer reviewedPostprin
A New, Carbon-Negative Precipitated Calcium Carbonate Admixture (PCC-A) for Low Carbon Portland Cements
Funding: The first named author L.M., a PhD scholar at the University of Aberdeen working under the supervision of M.S.I. and F.P.G., is sponsored through a fully funded studentship by CCM (UK) Ltd. Acknowledgments: The cements used in this work were kindly provided by Hanson Cement UK. Electron Microscopy was performed in the ACEMAC Facility at the University of AberdeenPeer reviewedPublisher PD
Thermodynamics of Portland Cement Clinkering
Acknowledgements The authors would like to thank Gulf Organization for Research and Development (GORD, Qatar) for funding.Postprin
Sequestering CO2 by Mineralization into Useful Nesquehonite-Based Products
The work described here was supported financially by GORD, the Gulf Organisation for Research and Development, based in Doha, Qatar. It forms part of the “Green Concrete” project at the University of Aberdeen.Peer reviewedPublisher PD
Production of belite calcium sulfoaluminate cement using sulfur as a fuel and as a source of clinker sulfur trioxide : pilot kiln trial
The authors gratefully acknowledge the financial support provided by the Gulf Organization for Research and Development (GORD), Qatar, through research grant number ENG016RGG11757. The authors would also like to acknowledge Thomas Matschei and Guanshu Li for the stimulating and fruitful discussions concerning the development of this work. The continuous support prior to, during and after the pilot kiln trial from Vadym Kuznietsov and the entire team at IBU-tec is also greatly appreciated.Peer reviewedPublisher PD
Advances in clinkering technology of calcium sulfoaluminate cement
Acknowledgement The authors gratefully acknowledge the financial support provided by the Gulf Organisation for Research and Development (GORD), Qatar, through University of Aberdeen research grant number ENG016RGG11757. Funding Information: Gulf Organisation for Research and Development (GORD) (ENG016RGG11757)Peer reviewedPostprin
Enthalpy of formation of ye’elimite and ternesite
Calcium sulfoaluminate clinkers containing ye’elimite (Ca4Al6O12(SO4)) and ternesite (Ca5(SiO4)2SO4) are being widely investigated as components of calcium sulfoaluminate cement clinkers. These may become low energy replacements for Portland cement. Conditional thermodynamic data for ye’elimite and ternesite (enthalpy of formation) have been determined experimentally using a combination of techniques: isothermal conduction calorimetry, X-ray powder diffraction and thermogravimetric analysis. The enthalpies of formation of ye’elimite and ternesite at 25 °C were determined to be − 8523 and − 5993 kJ mol−1, respectively