Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
@conference {3082, title = {Traditional Coatings as Protection of Portland Cement Concrete Against Carbonation}, journal = {International Conference on Sustainable Materials, Systems and Structures (SMSS 2019)}, volume = {Durability, monitoring and repair of structures}, year = {2019}, month = {2019-03-20 00:00:00}, pages = {333-340}, publisher = {RILEM}, address = {Rovinj, Croatia}, abstract = {Reinforced concrete is usually subjected to carbonation attack. Although it is a slow
}, keywords = {Carbonation, Coating, Durability, skin}, author = {Reis, R. C. and Cam{\~o}es, A. and Ribeiro, M.} }
development pathology, the consequences can be high, precisely in the places with greater
human, residential or industrial occupation. To make matters worse, carbon dioxide
concentration in the atmosphere has been increasing due to the impact of climate changes and
also to the growth of number of large cities. One of the ways to increase the resistance to
carbonation attack may be through the application of concrete coatings. In fact, many current
constructions have a protective skin on the concrete, often ignored in the durability design
project. For these reasons, this research has looked into the efficiency of the coatings when
applied on concrete. Priority was given to traditional unpainted coatings, with cementitious
base, hydrated lime or both. A coating based on fly ash and a thin coating of cement were also
tested. All of them were applied in an ordinary Portland cement concrete. Accelerated
carbonation tests were performed and the results were excellent. It was observed that the
performance of the coated concretes was, on average, about 65\% better when compared to the
uncoated concrete.
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 24 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt