Effect of Polymer Additives and Process Temperature on the Physical Properties of Bitumen-Based Composites

Dogan M., Bayramli E.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.113, sa.4, ss.2331-2338, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 113 Sayı: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1002/app.30280
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2331-2338
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Polymer modified bitumen (PMB) is a binder obtained by the incorporation of polymer into the bitumen by mechanical mixing or chemical reaction. This study deals with the modification of bitumen with three types of polymers (LDPE, EVA, and SBS) in the presence of filler (CaCO3). The morphological, mechanical, rheological properties, and thermal conductivity of the PMBs have been analyzed by scanning electron microscopy, tensile testing, melt flow index (MFI) measurements and hot wire method, respectively. The results indicate that the above-mentioned properties of PMBs are influenced by polymer and bitumen nature and its composition. The mechanical properties of composites prepared at different temperatures exhibit small differences. In general, the inclusion of polymer increases tensile strength and Young's modulus and reduces percentage strain and MFI values, also, polymer inclusion reduces the thermal conductivity values of the composites. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 2331-2338, 2009