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, ss.2331-2338, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 113 Konu: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1002/app.30280
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Sayfa Sayıları: ss.2331-2338

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