Polymer Modified Bitumen
Bashundhara Bitumen
Polymer Modified Bitumen
Bashundhara Bitumen
Selective bitumen & elastomeric polymer flawless together. Bashundhara PMB SBS-ID is one of the specially designed engineered bitumen grade to be used in making pavement, roads for heavy duty traffic to withstand extreme weather conditions.
APPLICATIONS
Premixed dense bituminous surfacing wearing course and Bituminous Binder course macadam of pavements based on Bashundhara PMB SBS-1D have been assured to have a longer life with a better resistance to-
- RUTTING OR PERMANENT DEFORMATION
- FATIGUE CRACKING
- THERMAL CRACKING
- STRIPPING
- MOISTURE DAMAGE
- AGING
FEATURES
This advanced product is manufactured by blending of high performing polymer with carefully chosen bitumen and has the excellent properties of-
- ELASTIC RECOVERY
- LOW TEMPERATURE FLEXIBILITY
- HIGH TEMPERATURE STIFFNESS
- SIGNIFICANT MOISTURE SUSCEPTIBILITY
TECHNICAL SPECIFICATIONS
RECOMMENDATIONS
PROPERTY
STANDARD
RESULT
UNIT
Penetration @ 25° C (100 gms, 5 sec.) 0.1 mm
JTG E20 T 0604
40- 60
53
-
Softening Point, °C (Ring & Ball)
JTG E20 T 0606
not less
than
75 84
°C
Dynamic Viscosity @135°C
JTG E20 T 0625
not more
than 3
2.2
Poise
Ductility@ 5 °C (5cm I min)
JTG E20 T 0605
not less
than
46
cm
Elastic Recovery @ 25°C
JTG E20 T 0662
not less
than
92
%
Storage Stability 48h, softening point difference
JTG E20 T 0661
not greater than 2.5
1.3
°C
Residual Penetration Ratio @25°C, 5sec, 1 OOg(RTFOT)
JTG E20 T 0604
not less
than
67
%
Residual Ductility @5 °C (RTFOT)
JTG E20 T 0605
not less
than
17
cm
Aggregate coating with boiling water
TVCN 7504:
2005
Grade-4,
min
Grade -5
Grade
RECOMMENDATIONS
Storage and Handling of PMB (SBS-1 D):
-
For short term storage (3-4 days), the recommended
temperature is around 165-175 °C. -
For long term storage (up to 2 weeks), the recommended
temperature is below 140-150 °C. -
For very long term storage (more than 2 weeks), the recommended
temperature is below 100 °C.
TO ENSURE BEST RESULTS
Process
Temperature Range PMB (SBS- I D)
Mixing with aggregates
170-185 °C
Laying
155-170 °C
Compaction
Over 135 ° C
End of Compaction
110-120 °C
