CUTBACK Bitumen
Bashundhara Bitumen
CUTBACK Bitumen
Bashundhara Bitumen
Bitumen and petroleum are optimum at the one. Bashundhara cutback bitumen is a mixer ideal ratio of straight-run bitumen and solvent like, naphtha or kerosene depending on the project's specifications. Straight-run bitumen can be heated to lower its viscosity and made it more fluid-like for spray sealing a pavement. An alternative to heating is the addition of a solvent. When a solvent is added to the bitumen viscosity, is reduced temporarily. This blend is termed as 'cutback bitumen". Cutback bitumen may be made with different viscosities after the predetermined addition of flux oil.
APPLICATIONS
Bashundhara cutback bitumen (Rapid Curing Type and Medium Curing Type) is widely
used for –
- PRIME COAT ON GRANULAR BASE COURSE (TYPE-I &II)
- TACK COAT ON RIGID PAVEMENT
FEATURES
Bashundhara cutback bitumen has some significant properties:
- EXCELLENT VISCOSITY FOR SPRAYING AS PRIME OR TACK COAT
- MOISTURE REMOVAL ON GRANULAR BASE COURSE
- FILLING VOIDS ON POROUS GRANULAR BASE COURS
- MAKING BOND WITH BITUMINOUS BINDER COURSE OR WEARING COURSE HENCE STRENGTHENING THE SURFACE
TECHNICAL SPECIFICATIONS
RECOMMENDATIONS
PROPERTY
STANDARD
RESULT
UNIT
Water
ASTM 095
0.2, Max
-
%
Flash point (Tag-open Cup), °C
ASTM 01310
37.8, Min
-
°C
Viscosity, Kinematic@ 60 °C
RHO 10.7
30-60
53.55
Centistoke
Distillation to
225 °C
260 °C
316 °C
RHO 10.7
25, Max
-
%
Residue from distillation to 360 °C
JTG E20 T0632
40-70
-
%
Penetration @ 25°C (100 gms, 5 sec.) 0.1 mm
RHO 10.1
120-250
120.6
0.1 mm
Ductility@ 25 °C (5cm I min)
ASTM 0113
100, Min
101
cm
RECOMMENDATIONS
Storage and Handling of Bitumen Emulsion:
-
Packing type of Bashundhara bitumen emulsion is 25 kg
plastic container. This emulsion filled jar must be kept airtight
and stored in a dry, comparatively dark and shady room in an
ambient temperature of 20-30 °C.
Recommendations for use
Storage and Handling of Cutback Bitumen:
- Long term storage temperature: for both mC and RC ambient temperature and must ensure air tighten
TO ENSURE BEST RESULTS
It is a mixture of selective bitumen, water and emulsifying agent with-
- Spraying Rate: 1.2 l/sqm
- Spraying Temerature: For Mc-30 And Mc-70: 100-120 °c For Rc-30 And Rc-70: 120-130 °c
