Evaluation of Local Asphalt Binders under Superpave Specification

Hussain Arshad; Yan Jun Qiu

doi:10.4028/www.scientific.net/AMM.178-181.1509

Paper Titles

Study on Critical Fracture Criterion of Asphalt Mixture Based on the Semi-Circular Bending Test
p.1488

Study on Load Stress of Lean Concrete Base in Asphalt Pavement
p.1495

Discussion on Rock-Fill Embankment and Manufactured Sand Using Tunnel Abandoned Dreg in Hu-Yang Expressway
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Cohesive Cracking Simulation of Concrete Using Effective Modulus
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Evaluation of Local Asphalt Binders under Superpave Specification
p.1509

Research on Determining Method for Asphalt Pavement Repair Area of Semi-Rigid Base Course
p.1513

Dynamic Calculation of the Port Highway of Riprap Quantities
p.1517

Evaluation of Asphalt Mixes Containing Reclaimed Asphalt Pavement
p.1522

Construction of Adjustment Model of Traffic Volume Forecast in The Latter Part of Expressway Operating
p.1526

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Evaluation of Local Asphalt Binders under...

Evaluation of Local Asphalt Binders under Superpave Specification

Abstract:

Premature rutting due to high temperatures and heavy loads has been a major distress on flexible pavements in Pakistan. One of the main causes of this early rutting is the available asphalt binders, which are still graded by using penetration grading system. The penetration grading system is based on empirical tests and does not link with performance. To improve the quality of the flexible pavement and to avoid the premature rutting the performance based testings were conducting in laboratory. This study evaluated performance graded (PG) binders for use in pavement construction in the country. Five different penetration graded asphalt binder, typically available in the country were graded according to PG system. The performance grades (PG) for all binders were determined based on DSR and BBR results. The two same penetration grades ARL60/70 and NRL 60/70 have different PG grades. The two different penetration grades ARL60/70 and NRL 80/100 have same PG grade. The results show that the local binders are very soft due to which they performed poorly at high temperatures and prone to severe rutting.