Potential of using organic additive produced with kaolin-clay in bituminous roadways
Journal of Engineering Research (Kuwait), cilt.11, sa.3, 2023 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 11 Sayı: 3
- Basım Tarihi: 2023
- Doi Numarası: 10.36909/jer.17683
- Dergi Adı: Journal of Engineering Research (Kuwait)
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Arab World Research Source, Directory of Open Access Journals
- Anahtar Kelimeler: Kaolin, Kaolin-containing-Organic Additive Material, Marshall Stability, Modified bitumen, Stability/Flow
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Gazi Üniversitesi Adresli: Evet
Özet
Roadway performance can be improved by using modified bitumen and/or modified bituminous mixtures in the structure. In this study, Kaolin-containing Organic Additive Material (K-c-OAM) was chemically synthesized. K-c-OAM is a new additive material obtained in laboratory conditions with the reaction of kaolin, a kind of clay, and ethylene glycol. 50/70 penetration grade neat bitumen has been modified by K-c-OAM in concentrations ranging from 1% to 4%. The effects of K-c-OAM on both bitumen and bituminous mixture properties have been investigated by experiments, including rotational viscosity, penetration, softening point, ductility, Nicholson stripping, and Marshall tests. Marshall Stability values of the bituminous mixtures have been found to be increased at a level varying between 6.4% and 9.5% by K-c-OAM modified bitumen. In areas where a hot climate is not dominant, K-c-OAM-modified roadway pavements have been reported to provide better performance in laboratory tests.