Development of an estimative model for the optimal tack coat dosage based on aggregate gradation of hot mix asphalt pavements
Development of an estimative model for the optimal tack coat dosage based on aggregate gradation of hot mix asphalt pavements
Authors
Raposeiras, A. C.
Rojas Mora, J.
Piffaut, E.
Movilla Quesada, D.
Castro Fresno, D.
Rojas Mora, J.
Piffaut, E.
Movilla Quesada, D.
Castro Fresno, D.
Profesor GuĆa
Authors
Date
Datos de publicaciĆ³n:
10.1016/j.conbuildmat.2016.05.045
CONSTRUCTION AND BUILDING MATERIALS,Vol.118,1-10,2016
CONSTRUCTION AND BUILDING MATERIALS,Vol.118,1-10,2016
Tipo de recurso
Article
Keywords
Materia geogrƔfica
Collections
Abstract
In this work the performance of tack coats on asphalt pavement layers is analysed. Adjustment models based on experimental measurements were implemented, relating surface layer macro-texture and aggregate content larger than 8 mm. The best fits were obtained with a Gompertz model, which follows the expected physical macro-texture changes outside the test range. Shear strength was analysed, through prediction curves of each evaluated tack coat dosage, with an optimum tack coat performance for aggregate contents larger than 8 mm between 45% and 50%, and no relevant influence of the tack coat dosage used. (C) 2016 Elsevier Ltd. All rights reserved.