Evaluating the Change Characteristics of the Microstructure of the Modified Plant Asphalt Using Soft Computing to Improve the Road Performance for Green Environment
Table 4
Technical indexes of SBR1502 powder.
Index
Quality index
Value
1
Fineness (pass rate of 20 mesh standard sieve, %)
≥97
2
Moisture
≤2.5
3
Combined styrene content (%, mass fraction)
21.5∼35
4
300% fixed elongation stress (MPa)
10∼15
5
Tensile strength (MPa)
≥21
6
Elongation at break (%)
≥320
7
Mooney viscosity of raw rubber (ML (1 + 4) 100°C%)
