Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

Yazarlar: Sevil KÖFTECİ

Konular:İnşaat Mühendisliği

DOI:10.28948/ngumuh.341691

Anahtar Kelimeler:Waste asphalt,Faulty road construction,Recycled aggregate,Extraction of asphalt,Bituminous base layer

Özet:    Waste asphalt pavements occurring from the faulty road construction or similar reasons cause great environmental pollution. This paper presents an experimental study on determination of fundamental characteristics of the recycled aggregates obtained from waste bituminous hot mixtures. For this purpose, 20 drilling core samples from a road segment in Antalya city were taken out by using core drilling machine. Aggregates and bitumen which are the main components of the bituminous hot mixture were separated from each other by using reflux extractor test set. Sieve analysis was performed on the each drilling core samples. Obtained results were compared to the lower and upper limit values of the bituminous base layer according to the related specification. Then, the performance of recycled aggregate, new limestone and basalt aggregates as well were analysed with aggregate tests such as Los Angeles abrasion, flakiness index, stripping resistance, soundness of aggregate by use of magnesium sulfate and methylene blue. According to the results obtained from the experimental tests, it can be said that recycled aggregates meet requirements of asphalt specifications and they can be used as aggregate again in asphalt pavement.

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