Rapid Test Methods of Bituminous Materials.

摘要

The primary objective of this study was two-fold:to verify for Louisiana asphalts the close agreement as found by others between the standard Thin Film Oven Test (AASHTO T179-74) and the newly adopted Rolling Thin Film Oven Test (AASHTO T240-73);and second,to seek a correlation between the standard ductility test (AASHTO T51-74) and a Micro-Ductility Test (Ref. 1and Appendix). The oven comparison was made by testing numerous asphalts for such residual properties as viscosity,penetration,and ductility following exposure in both ovens. A correlation between the standard ductility test and the micro-ductility test is presented,which suggests that a reasonable relationship does exist. However,due to the nature of the resulting correlation,no unique micro-ductility value corresponding to a 100+ductility value (current Louisiana acceptance specification) can be chosen. Therefore,this test should not be substituted for the well accepted and nationally used standard ductility test.