Construction projects require cost-effective and durable base materials that can withstand heavy traffic and environmental pressures. The most common recycled aggregates used include asphalt millings and crushed concrete. While both originate from recycled sources, they differ in composition, performance, and best-fit applications. Definition and Characteristics Asphalt Millings Asphalt millings come from reclaimed pavement that has […]
By Kyle Stansbury Class 2 Road Base is a fully recycled aggregate blend—combining reclaimed concrete, asphalt, sand, and gravel—formulated to meet Caltrans’ Class 2 specifications. Notably, asphalt is the most recycled material in the United States, with reclaimed asphalt pavement (RAP) fed directly back into both new surface mixes and underlying road layers. In the […]
By Chris Moretti Asphalt is comprised of a bitumen binder with aggregates, oil, and tar, forming HMAC (hot mix asphalt base course). This mixture creates a more flexible pavement than other materials, providing drivers with a smoother, more consistent ride quality. Asphalt is recyclable, and during road resurfacing, contractors use large milling machines that act […]