Open AccessExperimental Investigation: the optimum asphalt content and grading for PFC mixtures using local materials
Author(s) -
Abdul-Kareem N. Abbood,
Thair Jabbar Mizhir Alfatlawi,
Safa A. Hussein
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/671/1/012073
Subject(s) - gradation , asphalt , wearing course , rainwater harvesting , materials science , mixing (physics) , geotechnical engineering , environmental science , surface runoff , aggregate (composite) , crushed stone , composite material , geology , computer science , ecology , physics , quantum mechanics , computer vision , biology
Permeable pavement is widely used to improve the water circulation systems in urban areas. The advantages of using permeable pavement include the storage of rainwater, reduction of runoff, out-flow delay and reduction of peak discharge. Permeable friction course (PFC) is mixed as a thin surface layer of asphalt pavement in order to achieve environmental and safety benefits. This mixture creates a surface course of a permeable compacted mix of aggregates, consisting of sand, binder, and asphalt, that is blended hot in the mixing stage. The aim of this research is to determine the best characteristics of such permeable mixtures. In this study, three aggregate distributions of minimum, medium, and maximum specifications are utilised to select the best proportions of asphalt cement for a porous asphalt surface. The results show that the medium gradation meets the requirements and can thus be considered the best gradient. The optimal binder content is found to be 6.3% for permeable asphalt mixtures