HBP Pilot Void Acceptance Projects in Region 2 in 1997
Auteur : Bud A. Brakey
Date de publication : 1998
Éditeur : Colorado Department of Transportation, Construction and Materials Branch
Nombre de pages : 82
Résumé du livre
Summaries and analyses of three Void Acceptance (VA) projects are reported and compared with previous VA and quality assurance and quality control (QA & QC) projects. For two of the three projects, the voids filled with asphalt (VFA) averaged 77% (design criteria was 65-75%) and percent air voids (AV) averaged 3.2% (design target was 4.0%). Because compacted bulk specific gravity field tests were higher than lab-mixed design values, for all processes, field AV and voids in mineral aggregate (VMA) averaged 0.4% below design values. VMA was easily met after field targets were adjusted.