Energy efficiency of rubberized asphalt concrete under lowtemperature conditions


Karacasu M., Er A., Okur D. V.

Procedia - Social and Behavioral Sciences, sa.54, ss.1242-1249, 2012 (Hakemli Dergi)

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2012
  • Dergi Adı: Procedia - Social and Behavioral Sciences
  • Derginin Tarandığı İndeksler: Other Indexes
  • Sayfa Sayıları: ss.1242-1249
  • Eskişehir Osmangazi 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.