01515133

Component

Porous asphalt (PA), or open-graded friction course (OGFC) asphalt mixture, provides good drainage of surface water, and so maintains good friction between tires and pavement surface during raining. Current design of this type of mixture generally has a short service life and a rough surface after a few years in use due to raveling. To improve the smoothness and to increase the durability of pavement surface with PA, a small particle porous asphalt mixture modified with epoxy resin is suggested. This paper presents a laboratory study on the design and performance evaluation of small particle porous epoxy asphalt mixture. First the mixture was designed based upon a Schellenberg binder drainage test and a Cantabro raveling test, and checked with the Marshall test. Mixture properties, including high temperature stability, low temperature crack resistance, moisture resistance, friction, and permeability, were evaluated with a rutting test, a bending beam test, a freeze-thaw test, a British pendulum test, and a constant-head permeability test, respectively. The results show that the proposed mixture has good mechanical properties while retaining satisfactory friction resistance and permeability.

This paper was sponsored by TRB committee AFK40 Characteristics of Asphalt-Aggregate Combinations to Meet Surface Requirements.

01503729

14-2354

English

15p

2014

Transportation Research Board 93rd Annual Meeting

Digital/other

Figures; Photos; References; Tables

Asphalt mixtures; Durability; Friction course; Laboratory studies; Marshall test; Mix design; Porous materials; Rutting; Stripping (Pavements)

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

Transportation Research Board Annual Meeting 2014 Paper #14-2354

TRIS, TRB, ATRI

Jan 27 2014 2:50PM