Research on Rejuvenation of Styrene-Butadiene-Styrene Block Copolymer Modified Asphalt with Rejuvenating Agent Based on Pre-Mixing Method

Table 2

Gradation and coefficient of variation of RAP.

Mesh size, mm		19	16	13.2	9.5	4.75	2.36	1.18	0.6	0.3	0.15	0.015
RAP coarse aggregate	Sample 1%	100.0	84.6	80.6	72.1	55.1	29.9	22.3	16.5	12.2	9.4	6.5
		100.0	80.9	79.7	72.2	58.0	30.4	21.5	16.1	11.3	7.9	6.4
	Sample 2%	100.0	96.6	85.4	79.4	62.8	39.9	29.1	20.8	16.8	13.7	10.2
		100.0	91.9	92.4	84.6	68.0	42.8	28.2	23.1	15.1	12.3	9.5
	Sample 3%	100.0	97.8	89.5	78.0	62.0	38.1	24.4	18.7	13.5	11.1	8.3
		100.0	92.1	86.4	77.2	64.6	39.7	26.8	21.7	17.1	12.6	9.2
	Sample 4%	100.0	94.3	92.3	81.2	67.6	45.1	30.1	23.2	15.8	12.0	10.2
		100.0	97.1	93.0	85.2	73.4	46.0	35.1	25.4	19.3	14.5	9.3
	Sample 5	100.0	92.4	92.2	77.4	64.2	43.3	27.2	20.3	15.6	11.9	8.5
		100.0	97.5	89.3	78.0	62.1	40.7	28.9	20.6	13.8	10.6	8.4
	CV%	0.0	6.2	5.6	5.6	8.1	14.0	14.5	14.3	16.0	17.9	16.3
RAP fine aggregate	Sample 6%	100.0	100.0	100.0	96.6	89.5	64.7	38.3	28.8	19.0	14.9	10.8
		100.0	100.0	100.0	97.5	89.9	59.3	43.6	33.5	21.8	16.1	12.8
	Sample 7%	100.0	100.0	100.0	94.8	89.8	48.0	32.0	24.1	18.8	14.6	10.2
		100.0	100.0	100.0	100.0	80.3	49.7	33.6	26.7	18.6	13.9	9.9
	Sample 8%	100.0	100.0	100.0	95.8	86.3	59.6	42.0	29.9	21.8	16.9	12.8
		100.0	100.0	100.0	96.3	82.5	60.5	42.0	32.7	22.4	16.4	13.8
	Sample 9%	100.0	100.0	100.0	99.1	92.2	69.9	50.2	39.1	27.3	17.4	12.9
		100.0	100.0	100.0	99.1	92.2	69.9	50.2	39.1	27.3	17.4	12.9
	Sample 10%	100.0	100.0	100.0	97.0	97.4	68.2	48.1	40.4	25.7	20.4	14.2
		100.0	100.0	100.0	95.6	85.7	56.1	38.8	29.0	20.3	15.8	11.3
	CV%	100.0	100.0	100.0	95.4	87.6	60.4	43.3	29.5	22.2	15.5	11.2