A material consisting essentially of fine aggregate particles smaller than the openings in a 2.36-millimeter (No. 8) sieve and usually containing material that can pass through a 0.075-millimeter (No. 200) sieve. This material usually exhibits some plasticity characteristics.

The effect on pavement performance of any combination of axle loads of varying magnitude equated to the number of 80-kN (18,000-lb.) single-axle loads that are required to produce an equivalent effect.

The localized upward displacement of a pavement due to swelling of the subgrade or some portion of the pavement structure.

A measure of the viscosity of asphalt with respect to time, measured in poises, conducted at 60 degrees C (140 degrees F). The test method utilizes a partial vacuum to induce flow in the viscometer.

Bins that store the necessary aggregate sizes and feed them to the dryer in substantially the same proportions as are required in the finished mix.

A collective term for the mineral materials such as sand, gravel, and crushed stone that are used with a binding medium (such as water, bitumen, portland cement, lime, etc.) to form compound materials (such as asphalt concrete, portland cement concrete [PCC].etc.)

Trucks equipped with hydraulic lifts to dump the aggregate into the spreader or storage area.

Machines used for spreading aggregate evenly at a uniform rate.

Internal spaces in a compacted mix surrounded by asphalt-coated particles, expressed as a percentage by volume of the total compacted mix.

Interconnected cracks forming a series of small blocks resembling an alligator's skin or chicken wire and caused by excessive deflection of the surface over unstable subgrade or lower courses of the pavement.