caa a22 4500 463221907 CHVBK 20180405153215.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10853-006-1328-5 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1328-5 A comparative study of the volume stability of C-S-H (I) and Portland cement paste in aqueous salt solutions [Elektronische Daten] [H. Dramé, J. Beaudoin, L. Raki] Ordinary Portland cement (OPC) paste specimens and compacted C-S-H (I) powders were immersed in distilled water and aqueous salt solutions of varying concentration to study their volume change behavior. Immersion resulted in ionic interaction leading to various degrees of expansion, leaching, softening and dissolution of the test samples. In all cases relatively rapid expansion occurred. The expansion of C-S-H (I) in aggressive media was found to be large and fast in MgCl2, MgSO4, LiOH, LiNO3 and calcium (magnesium) acetate (CaMgAc) solutions. LiCl, CaCl2 and NaCl were moderately aggressive towards C-S-H (I) depending on the solution concentration. Trends in the length change behavior of OPC paste are similar to that of synthesized C-S-H (I). Similarities were observed between the length change behavior of compacted C-S-H (I) and the swelling of smectite clays in contact with these osmotic media. The similarities are compatible with explanations of expansion provided by both the osmotic and the electrical double layer (EDL) theories. The relationship between the expansive behavior of C-S-H and both Na and Ca Montmorillonite in contact with aqueous salt solutions is discussed extensively in the context of its significance in cement science. Springer Science+Business Media, LLC, 2007 Dramé H. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut Beaudoin J. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut Raki L. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6837-6846 0022-2461 42:16<6837 2007 42 10853 https://doi.org/10.1007/s10853-006-1328-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1328-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dramé H. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Beaudoin J. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Raki L. Institute for Research in Construction, National Research Council of Canada, M-20, 1200 Montreal Road, K1A 0R6, Ottawa, ON, Canada aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6837-6846 0022-2461 42:16<6837 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer