Decay Patterns And Damage Processes Of Historic Concrete

Decay Patterns And Damage Processes Of Historic Concrete: A Survey In The Netherlands

Pardo Redondo, G. (TU Delft Heritage & Technology)
Naldini, S. (TU Delft Heritage & Technology)
Lubelli, B. (TU Delft Heritage & Technology)

Roca, P. (editor)
Pelà, L. (editor)
Molins, C. (editor)

2021

Historic concrete buildings (end of 19th century – 1960s), because of their “experimental” character, require a specific approach to both survey and conservation. Although they were built with empirical approaches, some buildings show a fair state of conservation and resilience –even though they have already exceeded the 100-year threshold– while others of comparable age are in severe need of restoration. As part of the European project CONSECH20, aimed at contributing to the conservation of cultural-heritage concrete buildings, this paper investigates what are the most common types of damage and hypothetical causes, and what direct and non-direct parameters can lead to a faster or slower deterioration of historic concrete in the Netherlands. The research is based on an initial screening study, which will be used as a basis for a larger research among the participant countries. The current research is divided in three phases. Firstly, a selection of 15 case studies from the Netherlands are investigated; the selection was based on criteria of age, state of conservation and type of ownership. Secondly, the history and materials of the buildings are examined. Thirdly, an on-site visual survey is performed per each building, with pre-design templates, to identify types of damage, extent and severity. The data is then analysed combining different factors with a calculated index of severity. Results are discussed and contrasted to provide further clarification of the degradation of historic concrete. A fourth phase, not discussed in this paper, will use this methodology in a broader context, with a larger number of case studies in different countries.

Historic structures
Concrete
Decay patterns
Damage processes
Assessment

http://resolver.tudelft.nl/uuid:2434f00d-78e4-4461-8e44-09c7f23c53fc

International Centre for Numerical Methods in Engineering, CIMNE, Spain

978-84-123222-0-0

12th International Conference on Structural Analysis of Historical Constructions: SAHC 2021, Online event, 29 Sep - 1 Oct, 2021

12th International Conference on Structural Analysis of Historical Constructions, 2021-09-29 → 2021-10-01, Online event

Institutional Repository

conference paper

© 2021 G. Pardo Redondo, S. Naldini, B. Lubelli