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Intelligent Compaction (IC) for hot mix asphalt is a work in progress. IC rollers are valuable quality control tools that go a long way toward solving the shortcomings of the conventional process. But as we said, it's a work in progress.
Brian Morrow looks into a case about when a contractor may "pass through" a subcontractor's claim.
How liquid asphalt, cement/water, and asphalt emulsions perform set, cure and perform in the field depends to a tremendous degree on the physiochemistry of the aggregates they contact, including their chemical composition, residual moisture, porosity, and the heat of mixing and heat of hydration. Aggregates vary chemically and physically, they interact with cement and binders and that impacts success in the field.
Tight budgets and the need to innovate still drive a lot of road renovation projects. With the help of the Pavement Preservation and Recycling Alliance (PPRA) we look at two road renewal projects: Hot-in-place in Colorado and Cold-in-place in Los Angeles.
Earthmover tires are a critical component of uptime, cost control and profitability. A guide.
Recycled Asphalt Shingles (RAS) are making inroads into road mixes as used asphalt continues to find its way into specs.