if anyone gets bored
http://www.standardsforhighways.co.uk/ha/standards/dmrb/vol7/section5/hd3606.pdf The choice of surfacing materials/systems plays a
vital role in providing roads that meet the needs of the
user, are safe and give value for money. For many years
hot rolled asphalt with chippings rolled into the surface
was the most widely used surfacing on trunk roads,
including motorways, for both new construction and
major maintenance. However, recent years have seen
the development of new materials and techniques, many
of which are proprietary, which offer significant
advantages not just to the road user but also to the
environment. For example, noise generation may be
reduced, delays at road works curtailed, ride quality
improved and deformation resistance enhanced, all
while maintaining existing safety levels. Furthermore,
new products such as energy efficient ‘cold-lay’
materials are in their development phase. This Chapter
gives guidance on the range of surfacing options that
are now availabl