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

M. J. Martínez-Echevarría; E. Tejeda; M. C. Rubio; F. Moreno

doi:10.3989/mc.2013.03311

Authors

M. J. Martínez-Echevarría Universidad de Granada
E. Tejeda Universidad de La Habana
M. C. Rubio Universidad de Granada
F. Moreno Universidad de Granada

DOI:

https://doi.org/10.3989/mc.2013.03311

Keywords:

on-site density, cold asphalt emulsion mix, warm asphalt mix, pavement quality indicator

Abstract

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.

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