Evolution of mortars composition and characteristics during the 20th century– Study of Portuguese buildings awarded with Architecture Valmor Prize

Author(s): Luís Almeida, António Santos Silva, José Mirão, Maria do Rosário Veiga
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: 959-972
Total Pages: 13
Language : English

Abstract: 20th century is most known for the changes that have led to a new paradigm of construction techniques and the increasing use of new materials on the verge of modernity. Reinforced concrete has become the wide spread new construction material, letting behind traditional lime mortars that were used massively throughout the past centuries. Thus, Portland cement gradually substituted lime-based mortar’s binders, both aerial and hydraulic, and quickly bestowed an unmatched material to all construction agents, however almost incompatible with the traditional ones.
The Valmor Prize, one of the most prestigious prizes for Architecture in Portugal, was established in the beginning of 20th century to distinguish the most architectural striking buildings in Lisbon. In this paper the results of physical, mechanical, chemical and mineralogical characterization of renders and plasters collected in several Valmor awarded case studies will be presented. Their study aims to understand the evolution of composition and physical and mechanical characteristics of wall renders and plasters over the 20th century, since this knowledge and the evaluation of conservation state will have a huge contribution for valorisation and preservation of built heritage.

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