Evaluating the bond strength and work of fracture of bituminous mastic using the Taguchi method

ABSTRACT

The object of this study is to investigate the bond strength and work of fracture of bituminous mastic using Pull-off adhesion test. Regarding this issue, the Taguchi's Design of Experiment was employed to evaluate the effect of different parameters, inducing the type of filler, filler content and film thickness on the characteristics of bituminous mastic. In addition, utilising the digital image correlation method the displacement of the specimens during the test was measured, and then work of fracture was determined using the obtained force–displacement curve. The results showed that among the three parameters, as mentioned above, the film thickness influenced greatly on the characteristics of bituminous mastic, and the Bituminous Mastic Bond Strength (BMBS) and work of fracture were decreased by increase in film thickness. The type of filler also affected the characteristics of the bituminous mastic, where the bituminous mastic incorporating Air Cooled Copper Slag had the higher BMBS and work of fracture values. Moreover, BMBS decreased by increment of filler content.

KEYWORDS:

• Bituminous Mastic Bond Strength
• work of fracture
• Taguchi approach
• digital image correlation
• copper slag

Disclosure statement

On the behalf of all authors, corresponding author declares that common paper has not been published previously, that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright-holder. Finally, no potential conflict of interest was reported by the authors of this paper.

ORCID

Augusto Cannone Falchetto http://orcid.org/0000-0002-3240-6158

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.