Polymer_Modified_Bitumen

MARUTI PMB meets the requirements in accordance with PMB of IS 15462-2004 specifications designed for pavement applications. Heavy traffic intensity in terms of commercial vehicles, overloading of trucks and significant variations in daily & seasonal temperature of the pavement have been responsible for early development of distress symptoms like raveling, undulations, rutting, cracking, bleeding, shoving & potholing of bituminous surfaces.

Objective

The polymer dosages and mix designs of the binder are selected to ensure optimum performance to the climatic and traffic conditions that prevail on a particular project. Extensive research has shown that the use of performance asphalts using polymer modified bitumen binders significantly increases stability, strength, anti-rutting properties and longer life-span, as demanded by the industry to meet today’s and tomorrow’s traffic conditions. Stirring or circulation of storage tank before usage ensures complete homogeneity and temperature distribution in tank.

Application

Polymer Modified Bitumen can be used in asphalt mix designs which result in the manufacture of cohesive asphalt mix with good elasticity suitable for type of traffic. Special attention to be given to the temperatures while manufacturing, lying and compaction are performed.

Storage

Stringent heating and handling procedures must be followed at all times as per manufacturer guideline.

Health and Safety

Treat as hot bitumen. Serious risk of burns. Follow personal hygiene and protection procedures at all times. Products at a glance

Specifications of MARUTI PMB as per IS 15462-2004

No.

Designation

Grades & Requirements

Test Method

PMB 120

PMB 70

PMB 40

1

Penetration at 25 °C

90-150

50-90

30-50

IS 1203-1978

2

Softening point, ( R & B ), C Min.

50

55

60

IS 1205-1978

3

Elastic recovery of half thread in

Ductilometer at 15 °C, % Min.

70

70

70

IS 15462-2004

4

Flash point °C Min.

220

220

220

IS 1209-1978

5

Separation difference in softening
point, ( R & B ) °C Max.

3

3

3

IS 15462-2004

6

Thin Film Oven Test (TFOT) on residue

a). Reduction in Penetration of residue at 25 °C, Min. % of original

35

35

35

IS 1203 – 1978

b). Increase in softening point, °C Max.

7

6

5

IS 1205 – 1978

c). Elastic recovery of half thread in Ductilometer at 25 °C, % Min.

50

50

50

IS 15462 -2004

Advantages

Maruti PMB ensures

  • Durable surface characteristics
  • Excellent anti-stripping properties
  • High cohesiveness
  • High stiffness modulus leading to greater resistance to permanent deformation
  • Improved bonding between bituminous layers
  • Improved fatigue resistance than increased resistance to reflective cracks

Types of MARUTI PMB & recommendation for specific use:

  • Maruti PMB 120: recommended for cold climate areas
  • Maruti PMB 70: recommended for moderate climate areas
  • Maruti PMB 40: recommended for hot climate areas