Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 189, Issue -, Pages 787-796Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.09.054
Keywords
Linseed oil; Lime; Metakaolin; Carbonation; Hydration; Hydrophobicity; Amorphous calcium carbonate
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Funding
- Czech Science Foundation [18-28142S]
- Ministry of Education, Youth and Sports National sustainability programme I of Czech Republic [LO1219]
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This study investigates the effect of linseed oil on the microstructure of lime and lime-metakaolin pastes after 68 months of curing under controlled conditions. The hydrophobicity imparted by linseed oil to the pastes' bulk was confirmed by measuring water drops' contact angle. The results of thermal analysis, Xray powder diffraction, and Fourier transform infrared spectroscopy showed that linseed oil significantly hindered the carbonation reaction in both lime and lime-metakaolin pastes and promoted the development of amorphous phases. The obtained results also indicated that linseed oil could foster the pozzolanic reaction in the lime-metakaolin system by stabilizing and/or promoting the development of hydration products resulting in reduced shrinkage in comparison with the reference. (C) 2018 The Authors. Published by Elsevier Ltd.
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