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- W649893250 abstract "This article examines Exposed Aggregate Concrete (EAC), a new technology aimed at producing quiet and safe concrete road surfaces. In 1995, the UK's Highways Agency (HA) sponsored trials of concrete pavements with EAC surfacing. Although EAC had been used successfully in several European countries, it was necessary to show that similar success could be achieved under UK conditions, in terms of noise, texture, skidding resistance, and durability. EAC pavements require aggregates of relatively high Polished Stone Value (PSV) to provide acceptable skidding resistance; such aggregates are becoming increasingly scarce and expensive. For the two trial sites, the exposed aggregate had PSVs of 65 and 60, and a Flakiness Index of 25%. The techniques used to assess the performance of the EAC test sections were: (1) visual inspection of the pavement surface; (2) skidding resistance measurement using the Sideway-force Coefficient Routine Investigation Machine (SCRIM); (3) texture depth measurement by the Sand Pitch method; and (4) measurement of average vehicle tyre noise using the Statistical Pass-by method. The trial pavements had adequate skid resistance, and have had no significant deterioration after at least three winters. Their noise levels were lower than those from all the other trial surfaces." @default.
- W649893250 created "2016-06-24" @default.
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- W649893250 date "1998-06-01" @default.
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- W649893250 title "EAC SPELLS SAFETY AND SILENCE" @default.
- W649893250 hasPublicationYear "1998" @default.
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