asphaltic concrete pavements lesson

lesson 13 flexible (asphaltic concrete) pavements read and translate the text asphaltic concrete surface layers can have thickness down to 25 mm. full depth asphalt is a term used to describe a pavement in which all the courses are comprised of asphaltic concrete. asphalt concrete is a bitumen-aggregate mix produced at a plant or on site. a plant mix is a mixture of bitumen, as a binder, and mineral aggregates, prepared hot at a mixing plant and maintained at about 150°. fly ash, portland cement and ground limestone are used as fine fillers. the objective of asphalt mix design is to determine the proportion of bitumen, filler and aggregate which will produce a mix which can be spread and compacted, …

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