Griptester measurements and texture-friction relationship

R. B. Kogbara, E. A. Masad, K. Anupam, A. Scarpas

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)


The influence of test conditions such as test speed, pavement condition (wet or dry) and tire temperature on pavement friction measurements and texture-friction relationship was investigated. The skid resistance of an asphalt pavement section in Qatar was measured at test speeds of 35 and 50 km/h in dry and wet conditions, respectively, using a GripTester. The tire temperature was monitored using embedded small sensors. Close Range Photogrammetry (CRP) surface texture determination entailed using a camera for capturing pavement surface images, and analyzing the images with proprietary software. Both test conditions caused significant differences in grip numbers, but the average grip numbers fell within a narrow range (0.21–0.24). Among the texture parameters considered, only the peak material volume (Vmp) showed reasonable correlation (R = 0.61–0.78) with friction for both test conditions. The results suggest that the influence of test conditions on skid resistance decreases for smoothly polished pavement surfaces.
Original languageEnglish
Title of host publicationAdvances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018
EditorsEyad Masad, Ilaria Menapace, Amit Bhasin, Tom Scarpas, Anupam Kumar
PublisherCRC Press / Balkema - Taylor & Francis Group
Number of pages5
ISBN (Electronic)9780429855801
ISBN (Print)9781138313095
Publication statusPublished - 2018
EventAM3P 2018: International Conference on Advances in Materials and Pavement Performance Prediction - Doha, Qatar
Duration: 16 Apr 201818 Apr 2018
Conference number: 5


ConferenceAM3P 2018: International Conference on Advances in Materials and Pavement Performance Prediction
Abbreviated titleAM3P 2018
City Doha
OtherInspired from the legacy of the previous four 3DFEM conferences, AM3P continues the same theme i.e. models, experimental methods to measure properties and determine model parameters, implementation and utilization for material or pavement performance prediction.
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