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Predicting the effect of rainfall on asphalt surfacing materials

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Nursetiawan, N, Woodward, David and Strong, Alan (2009) Predicting the effect of rainfall on asphalt surfacing materials. In: Sixth International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, Politechnico di Torino, Italy . Politechnico di Torino, Italy . Vol 1 10 pp. [Conference contribution]

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Abstract

This paper reports an investigation into predicting the effect of rainfall on the properties of four types of asphalt surfacing materials. A rainfall simulator was designed to wet a large asphalt slabs under different rainfall intensities and cross falls allowing water flow across and within the slab to be quantified. The effect of water film thickness on skid resistancewas assessed. Test specimens were prepared using gyratory compaction and assessed for water retention and drying out experiments. This showed the importance of nderstanding how water movement and storage within the surface layer in relation to potential moisture related problems. The effect of increasing number of simulated rainfall events was used to assess the durability of unaged and aged asphalt. The results show that it is possible to determine key performance data without the need for large scale road trials.

Item Type:Conference contribution (Paper)
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Centre for Sustainable Technologies (CST)
ID Code:16015
Deposited By:Dr David Woodward
Deposited On:09 Dec 2010 12:01
Last Modified:09 Dec 2010 12:01

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