Characterisation of Cold Bituminous Emulsion Mixtures Using Microwave Heating Process

A previous study conducted by the authors proved that the inferiority of the mechanical properties of Cold Bituminous Emulsion Mixtures (CBEMs) could be overcome by incorporating a waste or by-product material, namely Paper Sludge Ash (PSA). The new CBEMs have demonstrated comparative mechanical and...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-08, Vol.1973 (1), p.12239
Main Authors: Al-Busaltan, Shakir, Nageim, Hassan Al, Dulaimi, Anmar, Shanbara, Hayder Kamil, Kadhim, Mustafa Amoori, Al-Kafaji, Muna
Format: Article
Language:English
Subjects:
Asphalt
Cold bituminous emulsion mixture
Impact analysis
Mechanical properties
microwave treatment
paper sludge ash
Physics
Sludge
Stiffness
stiffness modulus
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Summary:A previous study conducted by the authors proved that the inferiority of the mechanical properties of Cold Bituminous Emulsion Mixtures (CBEMs) could be overcome by incorporating a waste or by-product material, namely Paper Sludge Ash (PSA). The new CBEMs have demonstrated comparative mechanical and durability properties compared to conventional Hot Mix Asphalt (HMA). Furthermore, the new CBEMs have less impact on the economy, environment, and safety. However, the air void content of the new CBEMs is still high – to a stage unacceptable by pavement engineers. Thus, this study introduces a treatment method to reduce the air void without affecting the improvement achieved in mechanical properties and other environmental and economic issues. This study presents microwave energy treatment as a unique post-mix treatment method to overcome high air void content in CBEMs. Test results showed that microwave energy improves the stiffness modulus and air void content. However, new post-mix microwave treatment CBEMs still have comparative mechanical, volumetric, economic, and environmental characteristics to HMA.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1973/1/012239