Jamnagar, Gujarat (India)
  • Email : kmkotak@kotakgroups.com
  • +91-9824850777

Polymer Modified Bitumen

New challenges demand tailored solution designed to meet the needs of the modern day road, airports and construction sectors.

Conventional Bitumen may not be help address all of these challenges, but Polymer Modified Bitumen (PMB) is a proven solution to deal effectively with some of them.

Conventional bitumen modified with carefully chosen polymers can greatly improve the properties of the asphalt mixture providing benefits such as the following when compared conventional bitumen:

  • Improved rheology-elasticity recovery and viscosity.
  • Reduced chances of fatigue cracking.
  • Improved fuel resistance.
  • Improved adhesion/cohesion.

Kotak Asphalt LLP has been a leading player in the development of PMB technology over the short span of 7 years and has developed the range of PMBs that have been successfully applied to iconic projects across the country. Kotak Asphalt PMBs are manufactured by blending selected high performing polymers with carefully chosen base bitumen. This allows them to be used in challenging situations where superior performance is required. Kotak Asphalt PMBs can be formulated to overcome specific challenges such as improved resistance to deformation or to provide better adhesion between bitumen and aggregate than conventional bitumen.


Key benefits:

  • Durability - Due to its resistance to permanent deformation and superior resistance to stress compared to conventional bitumen, Kotak Asphalt is the ideal choice for busy roads.
  • Reliability - The reassurance of knowing you have a reliable product created by one of the India's leading technical specialists in bitumen manufacturing.
  • Adaptability - Specially formulated polymer modified bitumen gives flexible qualities and an ability to adapt to wide-ranging demands.

The Kotak Asphalt product family includes:

  • High Performance - Enjoy a multitude of benefits And modern surfacing demands.(State Highways & National Highways)
  • Dense Mixture - Designed for heavy use. (Bridge , Port and Jetty)
  • Fuel Resisting - Increased resistance where it's needed most.(Air port and Parking tarmac)
  • High performance track - A high performance surface for high performance vehicles.(Test tracks, Air port Runway, and Parking Tarmac)

Solutions for tough conditions

Specially formulated PMB to built Hero MotoCorp test track near Jaipur Rajasthan. Hero MotoCorp R&D (Test Track) has been design by William McDonough & Partners and built By L & T Ltd.

Kotak Asphalt LLP is approved to supply PMB at NATRiP facility near Indore Madhya Pradesh. NATRiP's NATRAX project is comprehensive test and evaluation of all type of vehicles.

Specifications:

IS 15462:2004
Characteristics Grade & Requirements
PMB 120 PMB 70 PMB 40
Penetration at 25℃, 0.1 mm, 100 g, 5 s. 90 to 150 50 to 90 30 to 50
Softening point (R&B), ℃, Min 50 55 60
FRAASS breaking point1), ℃, Max -20 -16 -12
Flash point, COC, ℃, Min 220 220 220
Elastic recovery of half thread in ductilometer at 15 ℃, percent, Min 70 70 70
Complex modulus as (G*/ sin δ as Min 1.0 kPa at 10 rad/s, at temperature ℃) 52 58 70
Separation, difference in softening point (R&B), ℃, Max 3 3 3
Viscosity at 150℃, Poise 1-3 2-6 3-9
Thin film oven test and tests on residue:
a) Loss in mass, percent, Max
b) Increase in softening point, ℃, Max
c) Reduction in penetration of residue,at 25℃, percent, Max
d) Elastic recovery of half thread in ductilometer at 25 ℃, percent, Min

Or

Complex modulus as (G*/ sin δ as Min 2.2 kPa at 10 rad/s, at temperature ℃)
1.0
7
35
50

-

52
1.0
6
35
50

-

58
1.0
5
35
50

-

70
1) Relevant to snow bound cold climate areas
Characteristics Grade & Requirements
PMB 120 PMB 70 PMB 40
Penetration at 25℃, 0.1 mm, 100 g, 5 s. 60 to 120 50 to 80 30 to 50
Softening point (R&B), ℃, Min 50 55 60 *
FRAASS breaking point1), ℃, Max -20 -16 -12
Flash point, COC, ℃, Min 220 220 220
Elastic recovery of half thread in ductilometer at 15 ℃, percent, Min 50 60 60
Complex modulus as (G*/ sin δ as Min 1.0 kPa at 10 rad/s, at temperature ℃) 58 70 76
Separation, difference in softening point (R&B), ℃, Max 3 3 3
Viscosity at 150℃, Poise 1-3 2-6 3-9
Thin film oven test and tests on residue:
a) Loss in mass, percent, Max
b) Increase in softening point, ℃, Max
c) Reduction in penetration of residue,at 25℃, percent, Max
d) Elastic recovery of half thread in ductilometer at 25 ℃, percent, Min

Or

Complex modulus as (G*/ sin δ as Min 2.2 kPa at 10 rad/s, at temperature ℃)
1.0
7
35
35

-

58
1.0
6
35
50

-

70
1.0
5
35
50

-

76
1) Relevant to snow bound cold climate areas