Fibre reinforced mortars for cultural heritage protection

0505883 - ÚTAM 2020 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Drdácký, Miloš - Michoinová, D.
Fibre reinforced mortars for cultural heritage protection.
5th Historic Mortars Conference. Proceedings of the 5th Historic Mortars Conference. Paris: RILEM Publications, 2019 - (Álvarez, J.; Fernández, J.; Navarro, Í.; Durán, A.; Sirera, R.), s. 273-282. RILEM Proceedings, PRO 130. ISBN 978-2-35158-221-3.
[Historic mortars conference /5./. Pamplona (ES), 19.06.2019-21.06.2019]
GRANT EU: European Commission(XE) CE1127
Institucionální podpora: RVO:68378297
Klíčová slova: mortars * natural fibres * synthetic fibres * fibrous particles
Obor OECD: Materials engineering
https://www.rilem.net/publication/publication/494

The adding of natural fibres to mortar mixtures is arguably the most important ancient technology applied the world over for its ability to improve performance. Even though modern synthetic fibrous materials are replacing historical ones, natural fibres may still be a competitive option by virtue of their ecological and economic qualities. The paper presents selected results of comprehensive investigations into the behaviour of lime mortars modified with natural and synthetic fibres and fibrous particles. It summarizes technical data for fibre reinforced mixtures made of lime matrix, sand and natural fibres (goat and horse hair), fibrous particles (sawdust and grain husks), as well as polypropylene fibres. Observations are presented regarding the impact the fibres have on the physical characteristics of the resulting matured mortars. The results of mechanical tests illustrate the degree to which fibres influence mortar strength. A positive effect on tensile strength is documented in an example where such mortars are applied as reinforcing layers to lowstrength masonry. The effects of weathering were also tested on small uncovered areas of plaster layers applied to burnt clay roof tiles exposed to one year in an outdoor environment.
Trvalý link: http://hdl.handle.net/11104/0297812