Product Overview
Styrelf® PMB PG Grading is a range of polymer modified bitumen by ITPL. We developed the solution using elastomeric polymers and TotalEnergies’ innovative cross-linking technology. Designed in accordance with the Performance Grade (PG) system, it delivers consistent binder performance across varying climatic conditions, traffic loads, and pavement applications.
This advanced PMB offers enhanced storage stability, cohesiveness, elongation capacity, and resistance to ageing. Suitable for modern road construction bitumen applications, Styrelf® PMB PG Grading is homogenous and superior quality PMB; which enhances life of the pavement. PMB grades are available from selection criteria of standard (S) to extremely heavy (E) traffic conditions as per IS 15462:2019.
Benefits
- Resistance to rutting at high pavement temperatures and fatigue under varying ambient conditions.
- Resists thermal cracking at temperatures as low as -10°C.
- Better stripping resistance and ITSR (Indirect Tensile Strength Ratios).
- Enhanced resistance against aging and oxidation.
- Proven record of longer life of pavement.
- Conserves natural resources and reduces pollution by extending the interval between overlays and periodic maintenance.
- Designed to perform reliably across India's diverse climatic conditions, with lower susceptibility to temperature variation.
- Suitable for use in national and state highways, city roads, flyovers, roundabouts etc. with improved overall mix performance.
Why Choose ITPL Styrelf® PMB PG Grading?
01
Advanced Polymer Technology
Developed using TotalEnergies’ elastomeric cross-linking technology, Styrelf® PMB PG Grading provides improved elasticity, storage stability, and resistance to ageing. Its homogeneous formulation helps enhance pavement durability while supporting consistent long-term performance.
02
Backed by Trusted Manufacturing Expertise
Recognised among the top modified bitumen manufacturers in India, ITPL combines IndianOil’s refining capabilities with TotalEnergies’ formulation expertise to deliver high-performance binders that meet the evolving needs of modern road infrastructure.
Key Technical Parameters of Styrelf® PMB PG Grading
As one of the top modified bitumen manufacturers in India, ITPL ensures that every grade of polymer modified bitumen is produced to meet recognised Bureau of Indian Standards (BIS) requirements.
Available Grades
STYRELF® PMB 64-10 S/H/V/E
STYRELF® PMB 70-10 S/H/V/E
STYRELF® PMB 76-10 S/H/V/E
STYRELF® PMB 82-10 S/H/V/E
STYRELF® PMB 76-22 S/H/V/E
| Characteristics | Grades and Requirements | Method of Test, Ref to | |||||
|---|---|---|---|---|---|---|---|
|
PMB 64-10 |
PMB 70-10 |
PMB 76-10 |
PMB 82-10 |
PMB 76-22 |
Annex | IS/ASTM | |
| (A) Tests to be Carried out on Original Binder | |||||||
| Softening Point (R & B), °C, Min. | 60 | 65 | 70 | 80 | 75 | – | IS 1205 |
| Elastic recovery of half thread in ductilometer at 15°C, Min. | 70 | 70 | 70 | 85 | 80 | Annex A | – |
| Flash Point, COC, °C, Min. | 230 | 230 | 230 | 230 | 230 | – | IS 1209 |
| Viscosity at 150 °C, Pa.s, Max. | 1.2 | 1.2 | 1.2 | 1.6 | 1.5 | – | ASTM D 4402 |
| Complex modulus (G*) divided by Sin delta (G*/Sin δ) as Min 1.0 kPa, 25mm Plate,1mm Gap, at 10 rad/s, at a temperature, °C. Min | 64 | 70 | 76 | 82 | 76 | Annex B | – |
| Phase Angle (δ), Degree Max. | 75 | 75 | 75 | 75 | 75 | Annex B | – |
| Separation, difference in softening point (R & B), °C, Max | 3 | 3 | 3 | 3 | 3 | Annex C | – |
| FRAASS breaking point, °C, Max. | -10 | -10 | -10 | -10 | -22 | – | IS 9381 |
| B) Tests to be carried on Rolling Thin Film Oven (RTFO) residue² | |||||||
| Loss in mass, %, Max. | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | – | IS 9382 |
| Complex modulus (G*) divided by Sin delta (G*/Sin δ) as Min 2.2kPa, 25mm Plate,1mm Gap, at 10 rad/s, at a temperature, °C | 64 | 70 | 76 | 82 | 76 | Annex B | – |
| C) MSCR test | |||||||
|
a) Standard Traffic (S) Jnr 3.2 Max 2.5 kPa-1. Jnr3d Max 75 percent Test Temperature, °C |
64 | 70 | 76 | 82 | 76 | Annex D | – |
|
b) High Traffic (H) Jnr 3.2 Max 2 kPa-1. Jnr3d Max 75 percent Test Temperature, °C |
64 | 70 | 76 | 82 | 76 | Annex D | – |
|
c) Very Heavy Traffic (V) Jnr 3.2 Max 1 kPa-1. Jnr3d Max 75 percent Test Temperature, °C |
64 | 70 | 76 | 82 | 76 | Annex D | – |
|
d) Extremely Heavy Traffic (E) Jnr 3.2 Max 0.5 kPa-1. Jnr3d Max 75 percent Test Temperature, °C |
64 | 70 | 76 | 82 | 76 | Annex D | – |
| C) Tests to be carried out on Pressure Vessel (PAV) residue³ | |||||||
| Complex modulus (G*) multiplied by Sin delta (G*Sin δ) as Max 6000 kPa, 8mm Plate, 2mm Gap, at 10 rad/s, at a temperature, °C | 31 | 34 | 37 | 40 | 31 | Annex C | – |
1) FRAASS Breaking Point only to be evaluated in case the project site has subzero temp conditions.
2) Method for Preparation of Rolling Thin Film Oven (RTFO) Residue is given in Annex E.
3) Method for Preparation of Pressuring Aging Vessel (PAV) residue is given in Annex F.
| Procedure | Recommended Temperature Range |
|---|---|
| Mixing / Coating with Aggregates | 170 - 185 °C |
| Laying of Mix | 150-170 °C |
| Beginning of Compaction | Over 140 °C |
| End of Compaction | 110-120 °C |
Product Certifications:Bureau of Indian Standards (BIS): CM/L-No-3269160
Specification: PMB grades available from selection criteria of standard (S) to extremely heavy (E) traffic conditions as per IS 15462:2019.
Download Specification
The product brochure covers application guidance, technical parameters, and compliance details of our slow setting road bitumen emulsion range.