A comparison and correlation between bitumen adhesion evaluation test methods, boiling and contact angle tests
| Autor: | Giuseppe Antonio Ranieri, Domenico Miriello, Olga Mileti, Noemi Baldino, Andrea Bloise, Paolino Caputo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
business.product_category
Aggregate (composite) Materials science Polymers and Plastics General Chemical Engineering 030206 dentistry 02 engineering and technology Adhesion 021001 nanoscience & nanotechnology Durability Biomaterials Contact angle 03 medical and health sciences 0302 clinical medicine Asphalt Boiling Bottle Adhesive Composite material 0210 nano-technology business |
| Zdroj: | International Journal of Adhesion and Adhesives. 102:102680 |
| ISSN: | 0143-7496 |
| DOI: | 10.1016/j.ijadhadh.2020.102680 |
| Popis: | Road pavement is principally made of mineral aggregates and a bitumen binder. Aggregates, due to their mineralogical nature, have complex chemical compositions and physical properties, which are strongly dependent on the minerals that constitute the stones. In pavement technology, bitumen/aggregate affinity is of paramount importance. Moisture damage in hot mix asphalt (HMA) is one of the major concerns in durability of flexible pavements, to improve the adhesion between the bitumen and the stones and increase the life of the road pavements often it is necessary using additives as the antistripping agents. Currently, there are several techniques such as the Boiling Test, the Rolling Bottle Test (RBT), etc., which evaluate the adhesion between the bitumen and the stones, however, most of them are based on a subjective evaluation. In the present paper, several types of mineral aggregates are characterized in detail by optical microscopy (OM) and X-ray powder diffraction (XRPD) in order to correlate the Boiling Test and the contact angle method to investigate the level of bitumen/aggregate affinity. For this reason, a single type of modified bitumen and two adhesion promoters were studied. The obtained results show the reliability of the technique used. However, there are still some limitations regarding the use of a contact angle test in assessing bitumen/aggregate affinity. |
| Databáze: | OpenAIRE |
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