Pavement Quality Indicator Field Operational Testing and Product Transfer. IDEA211 Project Final Report

摘要

The Pavement Quality Indicator (PQI) developed in this IDEA project, NCHRP-47 and211u001eits predecessor project NCHRP-32, has been demonstrated to be a viable product 211u001efor making real time measurements of asphalt pavement density in a non-211u001edestructive, non-nuclear format. The resulting product has several significant 211u001eadvantages over nuclear measurement instruments currently used for non-211u001edestructive asphalt density measurements. The electrically-based PQI is light 211u001eweight and very easy to use. No licensing processes are required. Virtually any 211u001emember of the paving crew or department of transportation can easily operate the 211u001ePavement Quality Indicator with little training. Pavement readings are 211u001einstantaneous and data can be electronically transferred to a computer for 211u001eprocessing. Field tests have demonstrated that the accuracy and repeatability of 211u001ethe PQI is light weight and very easy to use. No licensing processes are 211u001erequired. Virtually any member of the paving crew or department of transportation 211u001ecan easily operate the Pavement Quality Indicator with little training. Pavement 211u001ereadings are instanteneous and data can be electronically transferred to a 211u001ecomputer for processing. Field tests have demonstrated that the accuracy and 211u001erepeatability of the PQI's density measurements meet or exceeds those of nuclear 211u001einstruments.