ICPT - 2021

Permanent URI for this collectionhttp://192.248.9.226/handle/123/20174

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Browsing ICPT - 2021 by Author "Ansari, AH"

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    A brief review: application of recycled polyethylene terephthalate as a modifier for asphalt binder
    (Springer, 2021) Zair, MMB; Jakarni, FM; Muniandy, R; Hassim, S; Ansari, AH; Pasindu, HR; Bandara, S; Mampearachchi, WK; Fwa, TF
    The management of the waste materials produced on the earth is one of the highly substantial environmental issues. Hence, the increasing usage of plastic every year is one of the concerns across the entirety of theworld. The limiting landfill conditions and higher production of the waste plastic materials stress the researcher to manage it alternatively. Conversely, the growing number of heavy vehicles on roads cause road distress to asphalt pavements that contain pure asphalt binders that are insufficiently resistant. Civil engineers and scientists have attempted to address such issues by enhancing the performance of asphalt pavement via modification of asphalt binders’ properties. This paper summarized the possible utilization of waste polyethene terephthalate (PET) for binder modification. It has been evaluated that the PET can significantly improve the binder properties. The chemical modified PET showed better performance in term of physical and rheological properties. In addition, the compatibility of PET with binder has been highlighted with modified chemical structures and viamorphological assessment of modified binder. In addition to solving landfilling issues of waste PET plastic, such recycling approaches generated in these studies can also be used by asphalt researchers to explore future avenues of improvement for the characterization of asphalt binder as a paving material.
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    Physical and rheological properties of cup lump rubber modified bitumen
    (Springer, 2021) Ansari, AH; Jakarni, FM; Muniandy, R; Hassim, S; Elahi, Z; Zair, MMB; Pasindu, HR; Bandara, S; Mampearachchi, WK; Fwa, TF
    Pavement with long service life and low maintenance and rehabilitation costs are favored; thus, the need for high-quality bitumen is growing. This situation has led to the use of polymers as modifiers to enhance the properties of pavement to be more resistive to high temperature and stress during service life. Recently natural rubber in coagulated form has been identified as a biopolymer due to its high resilience and elastomeric properties. Therefore, this research was conducted to investigate the physical and rheological performance of bitumen with cup lump natural rubber with four percentages (3, 6, 9 and 12%) by weight of bitumen. The raw rubber was processed and treated before blending with bitumen. The modified bitumen was tested for physical and rheological properties. The incorporation of cup lump rubber decreased the penetration and increased the softening point. Furthermore, it also enhances the rheological properties in term of complex modulus (G*) and phase angle (δ).