Introduction of bitumen PG 70/10
BACCO Bitumen PG 70-10 is Performance Grade (PG) Bitumen is bitumen which is graded based on its performance at different temperatures. Performance Grade (PG) bitumen cement based on two factors: traffic and pavement temperature.
Adjustments are made to the PG grade of asphalt cement based on traffic conditions and traffic volumes which are intended to enhance the design life of the pavement.
Typical properties
|
Property |
PG70-10 |
Test Method |
|
|
|
Average 7-day maximum pavement Design Temperature, °C |
70 |
|
|
|
|
minimum pavement Design Temperature, °C |
> -10 |
|
|
|
|
Original Binder |
||||
|
Flash Point Temperature Minimum °C |
230 |
AASHTO T48 |
|
|
|
Viscosity maximum 3 Pa.s, Test Temperature,°C |
135 |
AASHTO T316 |
|
|
|
Dynamic Shear G*/sin minimum 2.2 KPa Test Temperature,°C |
70 |
AASHTO T315 |
|
|
|
Rolling Thin Film Oven Test |
AASHTO T240 |
|||
|
Mass change maximum percent |
1.00 |
|
|
|
|
Dynamic Shear G*/sin minimum 2.2 KPa Test Temperature, @ 10 rad/s °C |
70 |
AASHTO T315 |
|
|
|
Pressure Aging Vessel |
AASHTO R28 |
|||
|
PAV aging Temperature, °C |
100 (110) |
|
|
|
|
Dynamic Shear G*/sin maximum 5000 KPa Test Temperature, @ 10 rad/s °C |
34 |
AASHTO T315 |
|
|
|
Creep Stuffiness S maximum 300 Mpa m-value minimum 0.300 Test Temperature,@ 60s °C |
-10 |
AASHTO T313 |
|
|
|
Direct Tension Failure strain minimum 1 % Test Temperature @ 1mm/min, °C |
-10 |
AASHTO T314 |
|
|
|
Critical low cracking Temperature Critical cracking determined by PP42 Test Temperature |
-10 |
AASHTO PP42 |
|
|
Applications
Performance Grade Bitumen is graded based on pavement temperatures. In Super-pave grading system, binders are classified according to their Performance in extreme hot and cold temperatures and called as Performance Grade Bitumen.
This kind of bitumen is suitable to be used for road construction projects in hot regions. Performance grade binder PG 70-10 mean it can 7 days meet maximum pavement temperature of 76°C and minimum pavement temperature of -22°C so it can be used in hot areas. This grade of performance bitumen mostly used in pavement construction, pavement rehabilitation, crack sealing, spray applications and pavement protective membrane. It can be used for paving road with high traffic because of less tenderness it is.
Hazard Identification
NOT classified as dangerous in accordance with Directive 67/548/EEC or EC 1272/2008.
The main hazards presented by Asphalt relate to the temperature of the material. The following hazards may apply:
- Hot materials may burn the skin.
- Fumes from Asphalt are unlikely to be hazardous when laid in open air situations, but there may be a risk to health by continuous inhalation of high vapor concentrations which might arise in poorly ventilated, confined or semi-confined spaces.
- Asphalt is not a dusty material, but respirable dust may be released by cutting, drilling or planning hardened asphalt. If inhaled in excessive quantities over a prolonged period or extended period, respirable dust can constitute a long term health hazard.
Dusts containing Respirable Crystalline Silica* (quartz) present a greater hazard. Long-term exposure to respirable dust can lead to respiratory system damage and disease. Respirable crystalline silica* has been associated with the lung disease silicosis.
The quartz content of the product will vary, and is related to the type of aggregate used in the production of the asphalt. Advice on the quartz content and other chemical information is available from the supplying unit.
Fire Fighting Measures
Suitable Extinguishing Media: Dry powder, foam.
Unsuitable Extinguishing Media: Do not use water. CO2 is also not suitable.
Special Exposure Hazards in Fire: Hydrocarbon fumes may be released, along with other hazardous combustion products including smoke.
Special Protective Equipment for Fire Fighters: Proper protective equipment including suitable respirators or breathing apparatus must be worn.
Handling and Storage
Handling:
Skin contact with the product should be avoided. Inhalation of fumes should be avoided as far as is reasonably practicable.
If the formation of vapors is a risk, then additional ventilation should be provided. Handle away from sources of ignition and heat. Do not smoke, eat or drink during use.
Storage:
No special requirements. Asphalt is normally used upon receipt.
Refer to the relevant Technical Data Sheet for the specific product.
Cleaning
Tools: Clean with kerosene and gasoline.
Hands: Use a hand cleanser or kerosene followed by soap and water.
Availability
BACCO Bitumen PG70-10 is available in:
· Bulk
· New Steel Drums (185 Kg) and (150 Kg)