The use of a non-nuclear density gauge for monitoring the compaction process of asphalt pavement

Building up Efficient and Sustainable Transport Infrastructure 2017

Van Den Bergh, Wim^1 ; Vuye, Cedric^1 ; Kara, Patricia^1 ; Couscheir, Karolien^1 ; Blom, Johan^1 ; Van Bouwel, Philippe^2

University of Antwerp, Faculty of Applied Engineering, EMIB Research Group, 171 Groenenborgerlaan, Antwerp

2020, Belgium^1

Infrastructure and Real Estate, Brussels Airport Company, 1C Luchthaven Brussel Nationaal, Zaventem

1930, Belgium^2

关键词: Compaction degree;    Compaction process;    Compaction qualities;    Construction sites;    Material selection;    Mechanical performance;    Nuclear densities;    Pavement quality indicators;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/236/1/012014/pdf
DOI  :  10.1088/1757-899X/236/1/012014

来源: IOP

【 摘 要 】

The mechanical performance of an asphalt pavement affects its durability - thus carbon footprint. Many parameters contribute to the success of a durable asphalt mix, e.g. material selection, an accurate mix and even the road design in which the asphalt mix quality is quantified. The quality of the asphalt mix, by its mechanical properties, is also related to the compaction degree. However, and specifically for high volume rates, the laying process at the construction site needs an effective method to monitor and adjust immediately the compaction quality before cooling and without damaging the layer, which is now absent. In this paper the use of a non-nuclear density gauge (PQI - Pavement Quality Indicator) is evaluated, based on a site at Brussels Airport. Considering the outcome of the present research, this PQI is advised as a unique tool for continuous density measurements and allow immediate adjustments during compaction, and decreases the number of core drilling for quality control, and as a posteriori asphalt pavement density test where cores are prohibited. The use of PQI could be recommended to be a part of the standard quality control process in the Flemish region.