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A platform for research: civil engineering, architecture and urbanism
Friction Properties of Asphalt Surfacings Containing Sintered Lightweight Aggregate
Friction properties of a natural aggregate of known good polishing characteristics and a manufactured lightweight aggregate have been determined by means of the friction after polishing test. The friction of a blend of 75% w/w natural aggregate and 25% w/w lightweight aggregate was also estimated based on the friction values of the individual components and the blend ratio. Asphalt surfacings were then designed by replacing 25% w/w of the coarse natural aggregate with lightweight aggregate. Two types of thin surfacing mixtures, SMA and AC, typically used in low speed and high speed roads, were produced and evaluated. Friction characteristics of the asphalt surfacings were determined in the laboratory using the friction after polishing test. It was found that the lightweight aggregate had superior friction and polishing characteristics to that of natural aggregate. Laboratory results also indicated that thin surfacing materials containing lightweight had better friction and skid resistance than those without lightweight aggregate.
Friction Properties of Asphalt Surfacings Containing Sintered Lightweight Aggregate
Friction properties of a natural aggregate of known good polishing characteristics and a manufactured lightweight aggregate have been determined by means of the friction after polishing test. The friction of a blend of 75% w/w natural aggregate and 25% w/w lightweight aggregate was also estimated based on the friction values of the individual components and the blend ratio. Asphalt surfacings were then designed by replacing 25% w/w of the coarse natural aggregate with lightweight aggregate. Two types of thin surfacing mixtures, SMA and AC, typically used in low speed and high speed roads, were produced and evaluated. Friction characteristics of the asphalt surfacings were determined in the laboratory using the friction after polishing test. It was found that the lightweight aggregate had superior friction and polishing characteristics to that of natural aggregate. Laboratory results also indicated that thin surfacing materials containing lightweight had better friction and skid resistance than those without lightweight aggregate.
Friction Properties of Asphalt Surfacings Containing Sintered Lightweight Aggregate
RILEM Bookseries
Di Benedetto, Hervé (editor) / Baaj, Hassan (editor) / Chailleux, Emmanuel (editor) / Tebaldi, Gabriele (editor) / Sauzéat, Cédric (editor) / Mangiafico, Salvatore (editor) / Artamendi, Ignacio (author) / Allen, Bob (author) / Sabin, Phil (author) / Leake, Neil (author)
RILEM International Symposium on Bituminous Materials ; 2020 ; Lyon, France
Proceedings of the RILEM International Symposium on Bituminous Materials ; Chapter: 120 ; 943-949
RILEM Bookseries ; 27
2021-09-26
7 pages
Article/Chapter (Book)
Electronic Resource
English
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