Energy efficiency of rubberized asphalt concrete under low-temperature conditions


Karacasua M., ER A., OKUR D. V.

15th Meeting of the Euro-Working-Group-on-Transportation (EWGT), Paris, Fransa, 01 Eylül 2012, cilt.54, ss.1242-1249 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 54
  • Doi Numarası: 10.1016/j.sbspro.2012.09.838
  • Basıldığı Şehir: Paris
  • Basıldığı Ülke: Fransa
  • Sayfa Sayıları: ss.1242-1249
  • Anahtar Kelimeler: Rubberized asphalt concrete, Marshall Stability, Heat Loss
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Crumb tire rubber mixed asphalt concrete has a wide applicable area in road construction such as high energy absorbers and thermal stabilizator. Rubber's high damping capacity allows consideration of rubber modified asphalt mixtures as part of a damping system to decrease vibration therefore improving the comfort and durability of the pavement. Rubber particles may also help from cooling off asphalt concrete during transportation from plant to the site. Heat loss of asphalt concrete during transportation is one of the major problems in road construction. The slow rate of heat loss of the rubber mixed asphalt concrete enables the mixtures to be produced even in cold weather conditions. Moreover, since rubber absorbs UV rays from the sun, ice forming on the roadways could be reduced in the cold weather regions. To study the insulation effects of tire rubber on asphalt concrete Marshall Stability tests were carried out in laboratory using different amounts and type of crumb tire rubber on different temperatures. Applicability and effectiveness of final product were tested on site. From the results of the tests in laboratory and site it is concluded that with the appropriate type and amount of rubber it is possible to reduce heat loss of asphalt concrete. Insulation decreases the amount of energy required to replace heat losses, thereby reducing energy costs. Rubber can also help reduce heat produced during production on site. This can provide cost effective and energy efficient solutions and maintain environmental sustainability. (C) 2012 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the Program Committee