- 上一篇：水平轴风力涡轮机空气动力学英文文献和中文翻译
- 下一篇：气动定位系统英文文献和中文翻译
Yu’s research indicated that the commercial asphalt plug joint binder can be fur- ther improved by the modification with thermoplastic rubber and rubber。 The addi- tion of thermoplastic rubber and rubber did not influence the penetration but increased the elongation at 5 °C significantly。 Brittle point temperature test also con- firmed the improvement on low-temperature property [30]。 Research done by Mo also indicated that the addition of 20 wt。% crumb rubber powder into SBS modified
Table 1
ASTM D6297-01 Standard Specification for APJs for bridges [10]。
ASTM standards Required physical properties
Softening point, min D 36 83 °C
Tensile adhesion, min D 5329 700%
Ductility, min at 25 °C (77°F) D 113 400 mm
Penetration, Max at 25 °C, (77°F),150 g, 5 s D 3407 7。5 mm
Low temperature penetration, min at —18 °C (0°F), 200 g,60 s Flow, max 5 h, at 60 °C (140°F)
D 3407 1。0 mm
3。0 mm
Resiliency, min–max at 25 °C (77°F) D 3407 40–70%
Asphalt compatibility D 3407 Pass
Recommended installation temperature range 182–199 °C
Safe heating temperature range 199–216 °C
Bond 3 Cycles at —7 °C (+20°F), 100% Elong D 3405 Pass
Flexibility, at —23 °C (—10°F) D 5329 Pass
L。 Mo et al。 / Construction and Building Materials 45 (2013) 106–114 109
Table 2
Binder property requirements of UK standard for APJ [7]。
Performance characteristics Rubberized binder Polymer modified binder Test method
Cone penetration @ 25 °C 25–45 dmm 25–90dmm BS 2499 Part 3
Softening point 70 °C minimum 80 °C minimum BS 2000 Part 58
Flow resistance 5%@45 °C maximum 5 mm@45 °C maximum BS 2499 Part 3
Extension test 3 cycles @ 0 °C 3 cycles @ 0 or —20 °C ASTM D1191
Table 3
Requirements on binder properties of Swiss design guidelines。
Tests Requirement Test methods
Recovery with ductilometer @ 0 °C Lo P150 mm, ERD P75% EN 13398:2003
Storage stability 63% EN 13399:2003