High-Temperature Performance of Asphalt Mixtures: Preliminary Analysis for the Standard Technical Index Based on Gray Relational Analysis Method

Table 5

Rutting testing data of six asphalt mixtures.

Parameters	Unmodified			Modified
	PEN20	PEN50	PEN90	SBS I-C	SBS I-D	TPS
DS, times/mm	5415	1986	580	4603	8150	9965
, times/mm	601.1	186.7	45.8	580	1352.9	1135.3

denotes the standard deviation.