Blends of Bitumen With Polymers Having a Styrene Component. From: Polymer Engineering and Science | Date: July 1, 2001| Author: FAWCETT, A.H.; McNALLY, T. | COPYRIGHT 2001 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

A. H. FAWCETT [*]

T. McNALLY [**]

The properties of a 100 penetration grade bitumen are modified considerably, and in a number of ways by the addition of 10 to 40 parts per hundred (pph) of a homopolystyrene and graft, block and random copolymers of styrene with butadiene and acrylonitrile. At low temperatures some blends have a similar stiffness to or even lower stiffness than the bitumen, but generally the blends are more than one order of magnitude stiffer...

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