Performance Tests of Porous Asphalt Mix—A Review

This paper reviews the overall performance tests for porous asphalt from the material properties until the field evaluation. The material properties are consisting of both aggregate and binder tests. Those tests are the same with material properties evaluation for dense graded asphalt. The tests for binder involved a latest technology for evaluating the rheological properties and microstructural structures such as dynamic shear modulus, rotational viscosity, atomic force microscopy and X-ray diffraction. To evaluate the performance of porous asphalt in lab, the mechanical tests of mixture are very crucial and effective. Among the tests are stability test, indirect tensile strength test, permeability test, rutting resistance, resilient modulus, compression test and imaging analysis. Then, to further monitor the performance of porous asphalt during service life, the field tests are conducted. Among the tests are grain size analysis, hydrometer analysis, compaction parameter, skid resistance, sound adsorption test and flow characterization test. Thus, in order to evaluate the overall performance of PA, the evaluation is done at the initial stage which is the material properties evaluation, the mixture tests and lastly the final stage which is the field tests. The recommendations are also given on the new potential areas to be explored for this topic.