Current hot-mix asphalt (HMA) mixture design includes general criteria to define the amount and type of natural filler (or filler) leading to proper mixture performance and response. In this context, this research evaluated the feasibility of optimising the effect of natural fill...
Autor(es): Allex Eduardo Alvarez. Katy Lorena Gomez Zuluaga. Diana Carolina Gomez Zambrano. Oscar Javier Reyes Ortiz.
The material properties of hot mix asphalt (HMA) are modified by the amount and properties of the mineral filler (or filler) incorporated in the HMA. This paper focuses on the analysis of the filler effect on asphalt?aggregate interfaces of HMA based on thermodynamic properties (...
Autor(es): Allex Eduardo Alvarez. Evelyn Ovalles Gomez. Silvia Caro.
Permeable friction course (PFC) mixtures constitute one of the best options for surface paving, since they offer advantages (as compared to dense-graded hot mix asphalt) in terms of safety, economy, and environment. However, mix design and evaluation of PFC mixtures still...
Autor(es): Allex Eduardo Alvarez. Amy Epps Martin. Cindy K Estakhri.
Drainability is one of the main characteristics of permeable friction course (PFC) mixtures and is the primary reason for using these mixtures as the surface course in asphalt pavements in the United States. Current approaches suggested for PFC mix design to evaluate draina...
Autor(es): Allex Eduardo Alvarez. Amy Epps Martin. Cindy K Estakhri.
Durability of porous or permeable friction courses (PFC) is an important aspect to address when designing this type of hot mix asphalt. At present, several agencies perform the mix design of PFC primarily by determining volumetric mixture properties. This approach ensures ade...
Autor(es): Allex Eduardo Alvarez. Amy Epps Martin. Cindy K Estakhri. Richard Izzo.