Assessment of waste bleaching clay as alternative filler for the production of porous asphalts

摘要: Abstract Mineral fillers have a key role in controlling the mechanical characteristics of asphalt concretes (AC). The cohesion properties bituminous mastics depend upon used, and, therefore, so do effective strength and durability pavement layers. Recent research has studied using waste bleaching clays from food industry as substitute common limestone filler traditionally used production ACs for binder In this paper, clay is proposed alternative porous (PA) mixture. (Ud) comes two consecutive stages industrial process decolouring vegetable oils producing biogas clays. aim was to assess performance PA, terms physical characteristics, when compared traditional PA. Thus, mixtures with same dosages aggregates gradation were laboratory: one clay. Tests results are promising increasing Indirect Tensile Strength, stiffness, resistance permanent deformations.