BS 594987 specifies requirements for the transport, laying and compaction of those asphalt mixtures conforming to BS EN 13108-1, BS EN 13108-4 and BS EN 13108-5, described in PD6691, from the time that they leave the mixing plant until they are placed on the road ready to receive a superimposed layer or traffic.
It also includes the requirements for preliminary work at the laying site needed to ensure that the substrate is fit to receive the asphalt and for the application of tack coats and bond coats.
This standard comes into effect on 1 January 2008.
BS 594987:2007 supercedes BS 4987-2:2003 and BS 594-2:2003 which are withdrawn.
BS 594987 takes account of the implementation in the UK from 1 January 2008 of the BS EN 13108 series, as well as the European test methods for asphalt covered by the BS EN 12697 series. As not all of the test methods previously used in the UK have been replaced by equivalent European methods, reference is made where necessary to retained BS 598 test methods.
Requirements for transporting asphalt mixtures, for preparatory site work and for laying and compaction of asphalt mixtures, including the covering of concrete and sett paving, are given in this standard, which also contains in the Annexes protocols to be used for initial type testing of asphalt materials in accordance with BS EN 13108-20. It has been assumed in the preparation of this BS 594987 that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.