Thermal and rheological characterization of bitumen modified with microencapsulated phase change materials

Kakar, Muhammad Rafiq Khan; Refaa, Zakariaa; Worlitschek, Jörg; Stamatiou, Anastasia; Partl, Manfred N.; Bueno, Moises (2019). Thermal and rheological characterization of bitumen modified with microencapsulated phase change materials Construction and Building Materials, 215, pp. 171-179. Elsevier 10.1016/j.conbuildmat.2019.04.171

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The growing interest in the application of phase change materials (PCMs) and their benefit of storing or releasing thermal energy, attracted material scientists to investigate the suitability of PCM in bituminous road paving materials and to study the rheology of PCM-modified bitumen in particular. The use of PCM in road paving materials can contribute to minimize the distresses from seasonal extreme temperature variations in asphalt mixtures. In order to avoid or delay freezing and extreme low temperatures in asphalt pavements, the application of low temperature PCMs can be of great importance. Therefore, bitumens (160/220, 70/100 and 10/20) modified with microencapsulated PCM (µPCM) at low melting temperature were investigated. The dynamic shear rheometer (DSR) and differential scanning calorimetry (DSC) were used to evaluate the mechanical and thermal properties respectively. Based on the results, modification with 3% µPCM by mass of bitumen has no adverse effects on bitumen rheology but the advantage of minimizing/regulating temperature variations. Furthermore, it is anticipated that the protection of phase change materials as in this case using a polymeric shell is very important for its use in bitumen without reducing its rheological performance.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Architecture, Wood and Civil Engineering School of Architecture, Wood and Civil Engineering > Institute for Urban Development and Infrastructure > Transport Infrastructure School of Architecture, Wood and Civil Engineering > Institut for Building Materials and Biobased Products IBBM > Mobility and Transport Infrastructure group FGMV
Name:	Kakar, Muhammad Rafiq Khan; Refaa, Zakariaa; Worlitschek, Jörg; Stamatiou, Anastasia; Partl, Manfred N. and Bueno, Moises
Subjects:	T Technology > TE Highway engineering. Roads and pavements
ISSN:	09500618
Publisher:	Elsevier
Language:	English
Submitter:	Muhammad Rafiq Khan Kakar
Date Deposited:	09 Mar 2022 12:41
Last Modified:	08 Apr 2022 08:37
Publisher DOI:	10.1016/j.conbuildmat.2019.04.171
ARBOR DOI:	10.24451/arbor.15256
URI:	https://arbor.bfh.ch/id/eprint/15256