Cracking, Rutting, and Fatigue Performance of Asphalt Mixtures with a Novel Boron Additive
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Asce-Amer Soc Civil Engineers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Asphalt binder has a chemically complex structure. Due to this complexity, it is important to enhance the performance properties of asphalt binders by developing new additives that can adapt to their chemical composition. In this context, a new boron-containing additive, cyclic borate ester (CBE), was synthesized in the laboratory. The CBE additive then was incorporated into the asphalt binder at 1%, 2%, 4%, and 6% by weight through mechanical mixing. The asphalt binder with CBE was mixed with aggregate following the Marshall mix design, and briquettes (specimens) were created. For analysis, the Marshall stability and flow tests were conducted on the briquettes, and the Marshall quotient was calculated based on the test results. The indirect tensile test was performed at 5 degrees C, 25 degrees C, and 40 degrees C, with various pulse and rise times. The resilient modulus values of the mixtures were determined using the Asphalt Aggregate Mixture Analyzing System (AAMAS) nomograph. The resilient modulus losses of the mixtures subjected to moisture damage tests also were evaluated using the indirect tensile test. The results showed that the CBE additive improved the stability and strength of the mixtures, reduced the flow values, enhanced low-temperature performance, and increased elasticity, thus minimizing the potential for cracking. Additionally, the additive increased resistance to permanent deformation at moderate and high temperatures, improved load dissipation ability, and enhanced adhesion properties.
Açıklama
Anahtar Kelimeler
Modified asphalt, Cracking, Rutting, Fatigue, Boron, Chemical synthesis
Kaynak
Journal of Materials in Civil Engineering
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
37
Sayı
9
