An asphalt-rubber concrete and an asphalt concrete were tested in the laboratory and materials characterisations and properties we regenerated. The characterisation parameters and a runway model for a municipal airport were input into the modified ILLIPAVE computer program for predictions of rutting and cracking damage and relative lives of the materials as airfield pavement surfaces in each of four climatic zones. An economic evaluation was performed comparing the expected service lives and costs of each material in each zone. An equivalent uniform annual cost per square yard over the life of the pavement for the construction cost of each pavement was determined. The material with the least equivalent uniform annual cost was selected as the most cost-effective. In every zone but the dry no-freeze zone, the asphalt-rubber concrete was calculated to be the most cost-effective material.
Samenvatting