6533b81ffe1ef96bd12787ca

RESEARCH PRODUCT

Feasibility of using more polishable aggregates in dense-graded asphalt surface mixture: Case study of dolomite

Gu F.Lo Presti D.Heitzman M.Powell B.Allison V.

subject

Accelerated pavement testing Dense-graded asphalt mixture Dolomite Shotblasting Surface friction Three-wheel polishingSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceBuilding and ConstructionCivil and Structural Engineering

description

This study aimed to evaluate the feasibility of using more dolomite aggregates in asphalt surface mixtures that are typically used by West Virginia Division of Highways (WVDOH). The laboratory test results indicated that increasing dolomite content in asphalt surface mixtures resulted in a faster deterioration rate at the early polishing stage. In addition, asphalt surface mixtures containing more than 50% dolomite coarse aggregates would significantly reduce roadway safety. The field test results validated that dolomite shall not exceed 50% of coarse aggregate in asphalt surface mixture if the projected traffic volume is greater than 3.0 million equivalent single axle loads (ESALs).

yearjournalcountryeditionlanguage
2022-08-01Construction and Building Materials
https://doi.org/10.1016/j.conbuildmat.2022.127915