TY - JOUR
T1 - Clay Calcination Technology – A State of the Art Review by the RILEM TC 282-CCL
AU - Hanein, Theo
AU - Thienel, Karl-Christian
AU - Zunino, Franco
AU - Marsh, Alastair T.M.
AU - Maier, Matthias
AU - Wang, Bing
AU - Canut, Mariana
AU - Juenger, Maria C.G.
AU - Ben Haha, Mohsen
AU - Avet, Francois
AU - Parashar, Anuj
AU - Al-Jaberi, Layth A.
AU - Almenares-Reyes, Roger S.
AU - Aluja-Diaz, Adrian
AU - Scrivener, Karen L
AU - Bernal Lopez, Susan
AU - Provis, John L.
AU - Sui, Tongbo
AU - Bishnoi, Shashank
AU - Martirena, Fernando
PY - 2021/12/20
Y1 - 2021/12/20
N2 - The use of calcined clays as supplementary cementitious materials provides the opportunity to significantly reduce the cement industry’s carbon burden; however, use at a global scale requires a deep understanding of the extraction and processing of the clays to be used, which will uncover routes to optimise their reactivity. This will enable increased usage of calcined clays as cement replacements, further improving the sustainability of concretes produced with them. Existing technologies can be adopted to produce calcined clays at an industrial scale in many regions around the world. This paper, produced by RILEM TC 282-CCL on calcined clays as supplementary cementitious materials (working group 2), focuses on the production of calcined clays, presents an overview of clay mining, and assesses the current state of the art in clay calcination technology, covering the most relevant aspects from the clay deposit to the factory gate. The energetics and associated carbon footprint of the calcination process are also discussed, and an outlook on clay calcination is presented, discussing the technological advancements required to fulfil future global demand for this material in sustainable infrastructure development.
AB - The use of calcined clays as supplementary cementitious materials provides the opportunity to significantly reduce the cement industry’s carbon burden; however, use at a global scale requires a deep understanding of the extraction and processing of the clays to be used, which will uncover routes to optimise their reactivity. This will enable increased usage of calcined clays as cement replacements, further improving the sustainability of concretes produced with them. Existing technologies can be adopted to produce calcined clays at an industrial scale in many regions around the world. This paper, produced by RILEM TC 282-CCL on calcined clays as supplementary cementitious materials (working group 2), focuses on the production of calcined clays, presents an overview of clay mining, and assesses the current state of the art in clay calcination technology, covering the most relevant aspects from the clay deposit to the factory gate. The energetics and associated carbon footprint of the calcination process are also discussed, and an outlook on clay calcination is presented, discussing the technological advancements required to fulfil future global demand for this material in sustainable infrastructure development.
U2 - 10.1617/s11527-021-01807-6
DO - 10.1617/s11527-021-01807-6
M3 - Article
SN - 1359-5997
VL - 55
JO - Materials and Structures
JF - Materials and Structures
M1 - 3
ER -