Performance tests on bitumen and bitumen mixes - Controls 2015

according to American Standards ASTM and AASHTO

Test methods and the relative laboratory equipment currently exist, all complying with standards, which allow to identify the performance requisites which are necessary to guarantee extreme and durable quality of the surfacing. This approach , which has been used in the USA for over two decades through the SuperPave system, as part of the SHRP research program, should hopefully completely adopted and consolidated by other countries.” As well known, SuperPave (Superior Performing Asphalt Pavements) is a product of the SHRP (Strategic Highway Research Program) asphalt research. The system, as Asphalt Institute SP-2 mentions, "incorporates performance -based, asphalt material characterization with design environmental conditions to improve performance by controlling rutting, low temperature cracking and fatigue cracking."