THE INFLUENCE OF CONSTRUCTION QUALITY CONTROL DATA VARIABILITY ON PAVEMENTS EVOLUTION

ABSTRACT: Predicting pavement evolution is a fundamental component in pavement maintenance and rehabilitation management work. However, it is very complex to carry out due to several drawbacks, namely a common use of inadequate quality control procedures or a lack of reproducibility of quality control data. This paper describes the main conclusions of a study on the influence of construction quality control data on pavement evolution. It was possible to develop a methodology for this purpose based on stiffness modulus evolution, which will also allow for the assessment of the pavement’s design. The study involved the establishment of a statistical analysis procedure in order to analyse construction quality variability data, and the use of deflection tests, stiffness modulus tests, back-analysis of FWD data and the development of a procedure to correct the effect of temperature within the pavement on stiffness modulus. Results analysis showed that control quality data variability has an important influence on pavements ’ evolution prediction. It is expected that the integration of the proposed methodology on quality control plans will improve the data accuracy and all the decisions based on it