Print Email Facebook Twitter Comparative Study on the Early Stage of Skid Resistance Development between Polyurethane-Bound Porous Mixture and Asphalt Mixture Title Comparative Study on the Early Stage of Skid Resistance Development between Polyurethane-Bound Porous Mixture and Asphalt Mixture Author Shi, Jiachen (Tongji University) Cong, Lin (Tongji University) Yang, Fan (Tongji University) Wang, T. (TU Delft Urban Studies) Tan, Le (Tongji University) Yu, Meng (Beijing Oriental Yuhong Waterproof Technology Co.) Date 2020 Abstract Polyurethane-bound porous mixture (PPM) is a new type of pavement material that has shown some potential for overcoming common asphalt mixtures mechanical failures. However, little research has been done on its skid resistance performance. This work presents a comparative study of the skid resistance development between PPM and asphalt mixtures at their early stage. In this study, the three mixtures were bonded by three type binders. The three type binders were polyurethane, 70# virgin bitumen, and styrene-butadiene-styrene (SBS) modified asphalt. In order to distinguished the three type mixtures, we named them PPM, BAM, and SAM respectively. A Taber abraser was used to test the polishing property of binders. A third-scale model mobile loading simulator (MMLS3) was used to simulate the traffic loadings on mixtures, and a British pendulum tester was used to measure the skid resistance of the three types of mixtures in the loading process. The binder polishing test results show a good linear relationship between the binder's mass loss and the polishing cycle. The slope of the fitting line of the two parameters was defined as binder coefficient (BC) to characterize the polishing property of the binder. The mixture test results show that the skid resistance development trend of three mixtures is similar, as it first increases, then decreases, then finally flattens. However, the British pendulum number peak value and stable value of PPM are lower than that of SAM. The order of the number of loading times of peak (NLTP) of the three mixtures is SAM>PPM>BAM. Another good linear relationship is found between BC and NLTP, and the R2 of the fitting model is 0.85, which indicates that the polishing property of binder is effective for predicting the moment of occurrence of the mixture skid resistance peak. Subject Model mobile load simulator equipmentPolishing property of binderPolyurethane-bound porous mixturesSkid resistance development To reference this document use: http://resolver.tudelft.nl/uuid:aac0a9e2-baed-4f1d-bb34-94d9a197ecea DOI https://doi.org/10.1061/(ASCE)MT.1943-5533.0003234 ISSN 0899-1561 Source Journal of Materials in Civil Engineering, 32 (7) Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2020 Jiachen Shi, Lin Cong, Fan Yang, T. Wang, Le Tan, Meng Yu Files PDF Comparative_Study_on_the_ ... ixture.pdf 1.57 MB Close viewer /islandora/object/uuid:aac0a9e2-baed-4f1d-bb34-94d9a197ecea/datastream/OBJ/view