Improvement of hot mix asphalt performance in cold regions by organic-based synthetic compounds

Arslan D., GÜRÜ M., ÇUBUK M. K.

COLD REGIONS SCIENCE AND TECHNOLOGY, vol.85, pp.250-255, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 85
  • Publication Date: 2013
  • Doi Number: 10.1016/j.coldregions.2012.09.014
  • Journal Name: COLD REGIONS SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.250-255
  • Keywords: Asphalt, Organic-based magnesium compound, Organic-based manganese compound, Organic-based zinc compound, Stability, Stripping, LOW-TEMPERATURE PERFORMANCE, CROSS-LINKED POLYETHYLENE, POLYMER-MODIFIED BITUMEN, RUBBER-MODIFIED ASPHALT, SBS MODIFIED ASPHALT, MIXTURES PERFORMANCE, BITUMINOUS BINDERS, CONCRETE MIXTURES, COMMERCIAL WAXES, HYDRATED LIME
  • Gazi University Affiliated: Yes

Abstract

In this study, newly synthesized additive materials, organic-based magnesium compound (OBMAGC), organicbased manganese compound (OBMANC) and organic-based zinc compound (OBZC), were used as asphalt modifier. 50/70 penetration grade asphalt was separately modified with these additives at different concentrations ranging from 1% (w/w) to 10% (w/w). The effects of modification on the asphalt and hot mix asphalt (HMA) mixtures properties were detected through conventional tests (softening point test, ductility test, Marshall stability test, Nicholson stripping test, and indirect tension test) and Superpave methods (rotational viscosity, bending beam rheometer (BBR), and dynamic shear rheometer (DSR)). The proper concentrations for OBMAGC, OBMANC and OBZC to use in the modification of asphalt were determined as 3% (w/w) based on the rotational viscosity test results. Low temperature performance of the asphalt, as well as, stability and stripping resistance of the HMA mixtures were found to be improved by each of the additive. (C) 2012 Elsevier B.V. All rights reserved.