penetration grade bitumen road construction

What is Penetration Grade Bitumen and How Can You Use It to Your Advantage?

Penetration grade bitumen is one of the most common types of bitumen used in road construction. It is a petroleum-grade bitumen that is manufactured at different viscosities through fractional or vacuum distillation of crude oil. This refinery bitumen consists of a wide category of bitumen, which includes more than 5 subgrades: bitumen 30/40, 40/50, 50/70,

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