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Polymer Modified Bitumen

Key Features

Mahavir Chemicals Polymer Modified Bitumen isn't just ideally suited for hot climates, but also satisfies the rising demands due to heavy vehicle and traffic volumes on today's roads and runways. Mahavir Chemicals Polymer Modified Bitumen is manufactured with a specially blended feed, making the binder homogenous and storage stable. It enhances the key properties of asphalt mixes, i.e. deformation resistance and fatigue life. These improvements are the result of three vital physical changes which the polymer makes in the conventional binder structure: reduced temperature susceptibility, increased stiffness modulus and enhanced elasticity .

Advantages

Applications:

Surface dressing
Wearing course
Stress absorbing membranes (crack sealing)
Stress absorbing membrane interlayer
Base course
Thin overlays

Advantages:

Advantages of Mahavir Chemicals PMB 40 over Conventional Bitumen

Optimizes cost/service life
Reduces maintenance frequency
Provides high skid resistance
Reduces noise levels
Durable in extreme climatic conditions and high rainfall regions
Lower susceptibility to daily and seasonal temperature variations
Higher resistance to deformation at elevated pavement temperatures
Increases fatigue life
Delays cracking and reflective cracking
Overall improved performance in extreme climatic conditions and under heavy traffic conditions
Better water resistance
Resistance to creep failure
Higher indirect tensile strength

Technical Specifications

Key properties as per IS 15462: 2004

Specification / Property	PMB 40
Softening Point, 0C (min)	60
Penetration at 250C	30-50
Elastic Recovery of half thread, % (min)	70
Separation, Difference in softening point, 0C (Max)	3

Product Application

Usage recommendations as per IRC SP 53:2002

Usage	Viscosity (poise)	Temperature range, 0C
Binder at mixing	Max 2	165 – 185
Mix at mixing plant	Max 4	140 – 160
Mix at laying site	Max 5	130 – 150
Rolling at laying site