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Original Articles

Effects of material characteristics on asphalt and filler interaction ability

ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Pages 928-937 | Received 21 Oct 2016, Accepted 31 Jul 2017, Published online: 24 Aug 2017
 

ABSTRACT

Asphalt and filler interaction plays a key role on the performances of asphalt mastics and mixtures, while the asphalt and filler interaction ability is in turn affected by the material characteristics. In order to analyse the effects of material characteristics on asphalt and filler interaction, two kinds of matrix asphalt binders and three kinds of fillers were used to prepare asphalt mastics with different filler volume fractions. The dynamic shear rheological properties of these asphalt mastics were measured. The evaluation index KBG * was calculated subsequently to analyse the effects of material characteristics on the asphalt and filler interaction ability. The results show that filler volume fraction, filler particle size, SiO2 content and asphalt components had various levels of effects on the asphalt and filler interaction ability. Variance analysis was then conducted to rank these influencing factors from high to low as: (1) filler particle size, (2) asphaltene and resins content, (3) filler volume fraction, and (4) SiO2 content.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant number 51378073] and [grant number 51408043]; the Department of Science & Technology of Shaanxi Province [grant number 2016KJXX-69] and [grant number 2016ZDJC-24]; and the Special Fund for Basic Scientific Research of Central College of Chang’an University [grant number 310821153502] and [grant number 310821173501].

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