STIFFNESS MODULUS OF WARM MIX ASPHALT (WMA) USING ASBUTON AND SYNTHETIC ZEOLITE ADDITIVES

Authors

  • Leo Sentosa
  • Bambang Sugeng Subagio
  • Harmein Rahman
  • R Anwar Yamin

Keywords:

WMA, Asbuton modified asphalt, Synthetic zeolite, Stiffness modulus

Abstract

The use of asphalt modification with Asbuton semi extraction in asphalt mixtures requires a
higher temperature and compaction mixture than petroleum asphalt. Synthetic Zeolite is one type of additive
used to reduce the temperature of mixing and compaction of Asphalt mixture until it reaches a warm mixture
condition so that it can reduce emissions from the Asphalt mixture production process and is more
environmentally friendly. Warm Mix Asphalt (WMA) is a technology for making asphalt mixtures with mixing
temperatures 20-40 0
C below Hot Mix Asphalt (HMA) but at temperatures higher than boiling water. This
study aimed to determine the stiffness modulus of WMA using asphalt modified Asbuton Semi Extraction and
Aspha-min synthetic Zeolite. Asphalt mixture stiffness modulus testing uses Indirect Tensile Strength (ITS)
with cyclic loading, the testing procedure refers to ASTM D4123-82. The results showed that WMA using
Asphalt modified Asbuton and synthetic zeolite can be realized with mixing temperature and compaction of
30 0
C lower than WMA. Stiffness modulus of WMA with asphalt pen grade using synthetic zeolite is lower
than HMA, whereas WMA with Asbuton modified Asphalt produces modulus of stiffness value that is greater
than HMA.

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Published

2020-11-28

How to Cite

Leo Sentosa, Bambang Sugeng Subagio, Harmein Rahman, & R Anwar Yamin. (2020). STIFFNESS MODULUS OF WARM MIX ASPHALT (WMA) USING ASBUTON AND SYNTHETIC ZEOLITE ADDITIVES. GEOMATE Journal, 19(75), 107–114. Retrieved from https://geomatejournal.com/geomate/article/view/1142