Analysis of Asphalt Concrete Permeability Data Using Representative Pore Size

Characterisation of permanent deformation behaviour of unbound granular materials using repeated load triaxial testing

“…Vardanega & Waters (2011, 2015 selected the effective particle size statistically and determined that the D75 (i.e. the sieve aperture through which 75% of the granular material in the mix would pass) was the best fit to the entire dataset (although any effective particle size upwards of D50 i.e.…”

“…Taylor 1965, p.109-110). A more extensive discussion of the derivation of these parameters is given in Waters (1998) and Vardanega & Waters (2011, 2015. Goode & Lufsey (1965) observed that "Air permeability is a function of aggregate gradation as well as air voids.…”

“…Statistical analysis is performed with both databases using power-law functions. The results are compared to a previously published empirical model for the prediction of asphalt concrete permeability (Vardanega & Waters 2011, 2015.…”

Assessing the hydraulic conductivity of road paving materials using representative pore size and grading entropy

“…Taking these factors into consideration, there is the need to assess and effectively control the hydraulic conductivity during the design and construction process, to prevent moisture ingress and to achieve optimal durability and service quality of the road structure. Many published studies (e.g., Waters 1990, Waters 1998, Mallick et al 2003, Vardanega and Waters 2011, Vardanega 2014 indicate that the level of air voids is a key factor affecting the hydraulic conductivity of asphalt concrete.…”

Study on infrared differential thermal non-destructive testing technology of the permeability of hot mix asphalt pavements

“…Due to the uneven nature of asphalt concrete, a large area in air voids, natural rainfall will penetrate the asphalt surface and remain in semi-rigid top surface. Many high-speed driving in the role of free water will have a huge grassroots hydrodynamic pressure and erosion [2,3] . One of the most basic functions of densegraded HMA pavements surface is to make the asphalt surface layer can be enclosed rain, snow in the infiltration and protect base and subgrade to prevent water damage.…”