Abstract:
A modified Rotavapor apparatus and method had been previously developed at the Universityof Florida for simulation of short-term aging of modified asphalts. Due to the great potentialof this aging procedure, further refining of this procedure had been undertaken. This paperpresents the evaluation of an improved Rotavapor aging apparatus using a Morton flask. Itwas observed that greater temperature uniformity was obtained in the oil bath when theMorton flask was used. The equivalent aging severity between the modified rotavapor agingprocess and the standard short-term aging methods (TFOT and RTFOT) was established.
