Hydrophobic lime based mortars with linseed oil: Characterization and durability assessment

0428916 - ÚTAM 2015 RIV GB eng J - Článek v odborném periodiku
Nunes, Cristiana Lara - Slížková, Zuzana
Hydrophobic lime based mortars with linseed oil: Characterization and durability assessment.
Cement and Concrete Research. 61-62, July-August (2014), s. 28-39. ISSN 0008-8846. E-ISSN 1873-3948
Grant CEP: GA MK(CZ) DF11P01OVV008
Klíčová slova: durability * transport properties * metakaolin * mortar
Kód oboru RIV: AL - Umění, architektura, kulturní dědictví
Impakt faktor: 2.864, rok: 2014
http://www.sciencedirect.com/science/article/pii/S0008884614000738

Linseed oil was added to lime and lime metakaolin mortars in order to impart hydrophobic properties and investigate its resistance to weathering agents involving water transport. Different properties of the mortars with 6 months of age were evaluated: open porosity, pore size distribution, water absorption by capillarity, mechanical strength, carbonation reactions, microstructure and durability assessed by testing the resistance to sodium chloride accelerated ageing test. Significant durability improvement of both lime and lime metakaolin mortars enriched with linseed oil was achieved: remarkable capillarity reduction and consequently higher resistance to NaCl cycles. Linseed oil had a different effect on the two studied mortars: mechanical strength was slightly reduced for lime and slightly raised for limemetakaolin. Themechanismfor the durability improvement was found to be related to the modification of the chemical structure rather than on the alteration of the physical properties of the mortars.
Trvalý link: http://hdl.handle.net/11104/0234142