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Kesan bahan tambah RH-WMA ke atas sifat-sifat kejuruteraan bitumen PG-76

Rusbintardjo, Gatot and Abdul Wahab, Sitti Salmah and Khairuddin, Faridah Hanim and Ibrahim, Ahmad Nazrul Hakimi and Md. Yusoff, Nur Izzi and Hainin, Mohd. Rosli (2019) Kesan bahan tambah RH-WMA ke atas sifat-sifat kejuruteraan bitumen PG-76. Jurnal Teknologi, 81 (4). pp. 125-132. ISSN 0127-9696


Official URL: https://dx.doi.org/10.11113/jt.v81.13095


Pavement failure phenomena is normally caused by low quality of mixture materials, especially bitumen. The modification of bitumen is one of the alternatives to improve the performance of the material. Therefore, this study was conducted to investigate the performance of a polymer-modified binder (PG-76) with the addition of different percentages of Reduce Heat-Warm Mix Asphalt (RH-WMA) at 1, 2, 3, 4 and 5% (by-weight of binder). Several testings such as penetration, softening point and ductility tests were conducted to determine the physical properties of PG-76 and RH-WMA modified binders. The molecular structures of the materials were analysed using Fourier transform infrared spectroscopy (FTIR) test while the contact angle test was conducted to investigate the type of binder’s surface. In addition, an optical microscopy test was carried out to determine the morphological properties of the modified binders. Results show that the PG-76’s hardness decreases with the increasing of RH-WMA percentage, but the ductility values are still within the specification. The FTIR test shows an increase of RH-WMA percentage does not provide a significant reaction of the binder and the original properties of the materials remain. The morphology test shows that all percentage of RH-WMA selected are well dispersed in bitumen PG-76. Based on the contact angle results, all the PG-76 and RH-WMA modified binders fall into hydrophobic category.

Item Type:Article
Uncontrolled Keywords:Fourier Transform Infrared Spectrometer, Morphology
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:88007
Deposited By: Siti Norlela Isnin
Deposited On:15 Dec 2020 18:41
Last Modified:15 Dec 2020 18:41

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