https://www.geopolymer.org/fichiers_pdf/GPCement2013.pdf
https://drive.google.com/open?id=1CpcM8kbTgljUkLlK_opSJKk6RfVLB8K_
https://docs.google.com/document/d/1LQBLO0N5W5WLwTeYovt-tsrLQE3YqeFInQwXJ6cg_OQ/edit
