By Technical Committee B 510 1
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Additional resources for BS 594987:2007 Asphalt for roads and other paved areas – Specification for transport, laying and compaction and type testing protocols
3 Analyse all four samples to determine binder content and grading in accordance with BS EN 12697-1 and BS EN 12697-2. 1 Take the cores as detailed in this subclause in accordance with BS EN 12697-27, no sooner than 12 hours after the end of the laying process and when the asphalt has cooled to ambient temperature. 1). 3 Determine the bulk density of each of the cores in accordance with BS EN 12697-6:2003, procedure B, saturated surface dry condition. 4 Cut test specimens from the cores to determine stiffness in accordance with BS EN 12697-26 (ITSM method 20 °C).
Where possible, space the cores equally along the full length of the trial strip. 3 Determine the resistance to permanent deformation of the cores either: a) in accordance with BS EN 12697-22, using the method specified in BS EN 13108-20:2006 at the appropriate temperature (45 °C or 60 °C) for wheel tracking small device procedure B; or b) in accordance with BS EN 12697-25:2005, procedure A, using the method specified in BS EN 13108-20 for cyclic compression. 4 Report the resistance to permanent deformation.
B) maximum mixture density; c) maximum aggregate density. NOTE 2 Where no peak is obtained, take the value at which the curve starts to fall away from the horizontal. 5. 16 Report the following information: a) target composition of the mixture; b) proportion of coarse, fine and filler aggregates; c) overall grading of combined aggregate; d) binder type, penetration and softening point; e) binder content for maximum stability; f) binder content for maximum mixture density; g) binder content for maximum compacted aggregate density; h) design binder content.