Frost resistance of reproduced mosaic mortars

Author(s): Pavla Bauerová, Pavel Reiterman, Eva Vejmelková, Martin Keppert
Paper category: Proceedings
Book title: Proceedings of the 5th Historic Mortars Conference
Editor(s): José Ignacio Álvarez, José María Fernández, Íñigo Navarro, Adrián Durán, Rafael Sirera
ISBN: 978-2-35158-221-3
e-ISBN: 978-2-35158-222-0
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 1023-1031
Total Pages: 9
Language : English

Abstract: Flax oil has been used as mortar-improving admixture since ancient times. The present paper aimed to quantify the effect of flax oil on engineering properties of aerial lime based mortar, which composition was inspired by mortars collected from several Czech and Austrian mosaics from the end of 19th and beginning of 20th century. The oil increased the air content of mortar, its porosity and water repelling ability, but reduced the rate of carbonation and strength. On the other hand, the mortar’s frost resistance was significantly improved by flax oil. The optimum dosage of flax oil was determined to be 1% by weight of lime hydrate; at this dose the negative and positive effect of flax oil are balanced resulting in the best durability performance of the mortar.

Online publication : 2019
Publication type : full_text
Public price (Euros) : 0.00