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Effects of adhesion promoters on the contact angle of bitumen-aggregate interface.pdf

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Effects of adhesion promoters on the contact angle of bitumen-aggregate interface.pdf

International Journal of Adhesion Adhesives 70 (2016) 297–303 Contents lists available at ScienceDirect International Journal of Adhesion Adhesives journal homepage: /locate/ijadhadh Effects of adhesion promoters on the contact angle of bitumen-aggregate interface Cesare Oliviero Rossi a,n, Paolino Caputo a, Noemi Baldino b, Francesca Romana Lupi b, Domenico Miriello c, Ruggero Angelico d a Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, CS, Italy b Laboratory of Rheology and Food Engineering, Department of Informatics, Modeling, Electronics and Systems Engineering (D.I.M.E.S.), University of Calabria, via P. Bucci cubo 39/C, I-87036 Arcavacata di Rende, CS, Italy c Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy d Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, 86100 Campobasso, CB, Italy article info Article history: Accepted 18 July 2016 Available online 27 July 2016 Keywords: Modi?ed bitumen Quantitative performance evaluation Rheology Contact angle measurements abstract Herein, the evaluation of the effectiveness of several adhesion promoters for asphalt according to the chemical and mineralogical nature of the stone was investigated. From research in the road construction sector, the most common types of activators present on the market are classi?ed according to the chemical nature of their active ingredient: amides, polyphosphoric acid (PPA) esters and organosilanes. Therefore, for each of these families, the adhesive properties of the corresponding modi?ed bitumen loaded with a ?xed amount of active agent, were tested on four types of stone materials. X-Ray Powder Diffractometry (XRPD), X-Ray Fluorescence (XRF) and Environmental Scanning Electron Microscope Energy Dispersive Spectroscopy (ESEM–EDS) were carried out in order to establish the chemical and mineralogical nature and ide