Quantitative evaluation and enhancement of adhesion between bitumen and aggregates Academic Article

abstract

• 2014, Journal of Chemical and Pharmaceutical Research. All rights reserved. Stripping of asphalt-binder (bitumen) from the aggregate surface can undesirably contribute to various distresses in hot-mix asphalt (HMA) pavements such as ravelling (aggregate loss), cracking, pot-holing, etc. As a means to minimize this phenomenon, a quantitative adhesion test and evaluation method (QATE) was proposed and investigated in this study to characterize the bitumen-aggregate bond strength and adhesion properties. Concurrently, an innovative anti-stripping additive was developed in the laboratory through appropriate combination of the following chemical agents: Polyamide (PA), anti-moisture polymer (AMP), epoxy resin (EP), and dioctyl phthalate (DOP). The optimum anti-stripping mix proportions were determined and proved effective with an adherence percentage of 97.3% after 10 minutes boiling in water.

authors

• Walubita, Lubinda

published proceedings

• Journal of Chemical and Pharmaceutical Research

author list (cited authors)

• Li, J., Zhang, W., Jia, W., Walubita, L. F., & Liu, G.

complete list of authors

• Li, J||Zhang, W||Jia, W||Walubita, LF||Liu, G

publication date

• January 2014

published in

• Journal of chemical and pharmaceutical research  Journal

start page

• 1737

end page

• 1742

volume

• 6

issue

• 6