Characteristics of mortars from ancient bridges

Title: Characteristics of mortars from ancient bridges
Author(s): D. Frankeová, Z. Slízková, M. Drdácký
Paper category : conference
Book title: 2nd Conference on Historic Mortars - HMC 2010 and RILEM TC 203-RHM final workshop
Editor(s): J. Válek, C. Groot and J.J. Hughes
Print-ISBN: None
e-ISBN: 978-2-35158-112-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 147 - 155
Total Pages: 9
Nb references: 9
Language: English

Abstract: Mortars from two medieval bridges (Charles Bridge in Prague and bridge in Roudnice) and two Roman bridges (Ponte di Augusto in Narni and bridge in Sardinia) were analyzed using various techniques to obtain their chemical and physical characteristics. The analysis of binder quality was based on thermogravimetric analysis, using an appropriate methodology which enables the hydraulicity of the mortar to be expressed by the CO2/H2O ratio. The mechanical tests were performed on non-standard mortar specimens. The ratio binder/aggregate was determined dissolving the binder by an acid, and a sieving analysis was applied to the separated aggregate. The material characteristics of mortars from historic bridges were compared with each other, taking into account the requirements for mortar strength according to construction position and degree of exposure.

Online publication: 2010-10-25
Publication type : full_text
Public price (Euros): 0.00