Early-age volume changes of extrudable reactive powder concrete K. Cherkaoui, M. Courtial, F. Dunstetter, A. Khelidj, P. Mounanga and M.N. De Noirfontaine EPJ Web of Conferences, 6 (2010) 23005 Published online: 10 June 2010 DOI: 10.1051/epjconf/20100623005