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 {2408, title = {CASE STUDY ON PREMATURE CRACKING OF AN ASPHALT PAVEMENT WITH RESIN BONDED COATING}, journal = {8th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control}, year = {2016}, month = {2016-07-27 00:00:00}, address = {Singapore}, abstract = {Nowadays, apart from the mechanical performance demands for road pavements, other characteristics, such as road safety and landscape valorisation are also required. In order to improve those properties, microthin coatings can be applied to improve skid resistance and also to alert drivers to high risk areas. However, the conditions under which these solutions could be applied need to evaluated, in order to assure their durability and avoid consequent problems in the mechanical behaviour of the pavement. Thus, the aim of this case study is to evaluate the possible causes of premature and severe cracking observed in an asphalt pavement with microthin resin bonded surfacing, just a few months after the pavement construction, although it is not being subjected to traffic loads. In order to accomplish this goal, boreholes were initially excavated to define the pavement structure and collect undisturbed samples of pavement and subgrade materials. Then, all those materials were characterized and the possible causes of cracking were studied taking into account the results obtained. From this work, it can be concluded that the variable deformations of the pavement due to the subgrade expansion are compatible with the deformations and cracking observed in the pavement surface. In spite of its high antiskid characteristics, the resin bonded surface should not be used in asphalt pavements built over subgrades sensitive to water variations and/or with low bearing capacity.
}, keywords = {asphalt mixtures properties, Case study, Cracking, resin bonded surfacing, subgrade properties}, author = {Fernandes, S. and Silva, H. M. R. D. and Oliveira, J. R. M. and Palha, C. and Pereira, P.} }
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 25 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