International Journal of Transportation Engineering

International Journal of Transportation Engineering

Investigation of the Skid Resistance and Mechanical Properties of Concrete Based on Aggregate Characteristics and Cement-Paste Film Parameters

Document Type : Research Paper

Authors
Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
Abstract
Maintaining pavement friction under wet conditions requires surface textures that withstand traffic-induced polishing and wear. This study evaluates how the coordinated adjustment of maximum aggregate size (MAS), aggregate gradation, packing density, paste film thickness (PFT), and mortar film thickness (MFT) governs skid resistance in slip-formed concrete pavements. Twenty mixtures were produced with Modified Fuller–Thompson exponents (0.67, 0.55, 0.45, 0.35) at MAS = 9.5, 12.5, 19, 25, and 37.5 mm. Tests included slump and Box Test, wet packing density, PFT/MFT, compressive and flexural strength, EN 1338 abrasion, ASTM E303 British Pendulum Number (BPN), Mercury Intrusion Porosimetry (MIP), and Scanning Electron Microscopy (SEM) of the Interfacial Transition Zone (ITZ). The results indicate that mixtures with MAS = 19–25 mm provided the best overall balance—higher compressive and flexural strengths, BPN typically ≥ 65, and lower abrasion rates. The study indicates that coordinating packing density with PFT and MFT—within a compatible gradation—enhances mechanical properties as well as skid resistance.
Keywords

- ASTM International. (n.d.). ASTM C29/C29M-07: Standard test method for bulk density (“unit weight”) and voids in aggregate. West Conshohocken, PA.
- ASTM International. (n.d.). ASTM C494/C494M-99a e1: Standard specification for chemical admixtures for concrete. West Conshohocken, PA.
- ASTM International. (2015). ASTM C143/C143M-15a: Standard test method for slump of hydraulic-cement concrete. West Conshohocken, PA.
- EN 1338. (n.d.). Concrete paving blocks – Requirements and test methods. Wide wheel abrasion test.
- Hall, J. W., Smith, K. L., Titus-Glover, L., Wambold, J. C., Yager, T. J., & Rado, Z. (2009). Web-only document 108: Guide for pavement friction. National Cooperative Highway Research Program (NCHRP).
- Li, L. G. (2013). Roles of water, paste and mortar film thicknesses in performance of mortar and concrete (Doctoral thesis).
- Luansu, W., Wenqiang, Z., Hao, P., Kai, L., Wenhua, Z., & Wei, S. (2021). Rational design of lightweight cementitious composites with reinforced mechanical property and thermal insulation: Particle packing, hot pressing method, and microstructural mechanisms. Composites Part B: Engineering, 226.
- Road Research Laboratory. (1969). Instructions for using the portable skid-resistance tester. HM Stationery Office, London.
- Schmidt, M. (2004). Ultra high performance concrete (UHPC). In Proceedings of the International Symposium on Ultra High Performance Concrete, Kassel, Germany, September 13–15, 2004.
- Sherwood, J. A. (2011). Effects of concrete mixture designs on skid numbers. In Proceedings of the 8th International Conference on Managing Pavement Assets. Federal Highway Administration, Intervial Chile, CAF–Banco de Desarrollo de América Latina.
- Wong, H. H. C., & Kwan, A. K. H. (2005). Packing density: A key concept for mix design of high performance concrete. In Proceedings of the Materials Science and Technology in Engineering Conference. HKIE Materials Division, Hong Kong, 1–15.