Evaluation of the Pavement Quality Indicator (PQI) for the on-site density measurement of asphalt emulsion mixes

The Pavement Quality Indicator (PQI) is a non-nuclear gauge used for the on-site density measurement of asphalt pavements without the need to extract core samples. Previous studies of hot asphalt mixes found that PQI density readings were very similar to laboratory density measurements of pavement c...

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Bibliographic Details
Published inMateriales de construcción (Madrid) Vol. 63; no. 309; pp. 93 - 104
Main Authors M. J. Martínez-Echevarría, E. Tejeda, M. C. Rubio, F. Moreno
Format Journal Article
LanguageEnglish
Published Consejo Superior de Investigaciones Científicas 01.03.2013
Subjects
cold asphalt emulsion mix
on-site density
pavement quality indicator
warm asphalt mix
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Summary:The Pavement Quality Indicator (PQI) is a non-nuclear gauge used for the on-site density measurement of asphalt pavements without the need to extract core samples. Previous studies of hot asphalt mixes found that PQI density readings were very similar to laboratory density measurements of pavement cores. This paper describes the first stage of a research project whose objective is to analyze PQI density measurements of mixes manufactured with an asphalt emulsion binder. The PQI density variability for such mixes was verified and compared with the results obtained with other on-site methods for measuring pavement density.
ISSN:0465-2746
1988-3226
DOI:10.3989/mc.2013.03311