Determination of binder-aggregate adhesion by contact angle measurement - Publikacja - MOST Wiedzy

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Determination of binder-aggregate adhesion by contact angle measurement

Abstrakt

The key factor in asphalt pavement durability, especially in the presence of water, is adhesion of the bituminous binder to mineral aggregates. There are currently no standard laboratory test procedures that can quickly and accurately measure the strength of the interaction (bond) between the binder and aggregate. In this regard, to evaluate the adhesion force measurements based on the contact angle between the binder and the aggregate by goniometric method were conducted. Contact angles at the mineral-binder-air interface were measured using a high temperature contact angle goniometer by a sessile drop technique. The influence of five adhesion promoters at different temperature (40 to 200°C, 104 to 392°F) for two minerals, granite and limestone, has been investigated. The road binder 35/50 (pen@25°C or @77°F) was used as the bituminous phase. Obtained results show that for granite, for nearly all used promoters, adhesion is better than for pure binder. In case of limestone, the difference of measured contact angles between pure binder and binder with additives is not evident and one can say that activity of some promoters is neutral or adhesion could be even worse. The results of contact angle tests at the full range of temperature can be used also for adhesion assessment for warm mix asphalt (WMA) technologies.

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Kategoria:
Publikacja monograficzna
Typ:
rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
Tytuł wydania:
Asphalt pavements strony 617 - 624
Język:
angielski
Rok wydania:
2014
Opis bibliograficzny:
Aranowski R., Wojewódka P., Błażejowski K.: Determination of binder-aggregate adhesion by contact angle measurement// Asphalt pavements/ ed. Y. Richard Kim Londyn: CRC Press, 2014, s.617-624
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1201/b17219-78
Weryfikacja:
Politechnika Gdańska

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