TY  - JOUR
T1  - Investigating Aluminum Oxide and Silicon Dioxide Modified Bitumen Stiffness Modulus with Empirical Method
TT  - Alüminyum Oksit ve Silikon Dioksit ile Modifiye Edilmiş Bitümün Rijitlik Modülünün Ampirik Yöntemle İncelenmesi
AU  - Karahançer, Şebnem
PY  - 2019
DA  - December
JF  - Journal of Innovations in Civil Engineering and Technology
JO  - JICivilTech
PB  - Hüseyin AKBULUT
WT  - DergiPark
SN  - 2687-2129
SP  - 99
EP  - 105
VL  - 1
IS  - 2
LA  - en
AB  - In this study, bitumen was modified with aluminumoxide and silicon dioxide using high shear mixer. As a result of thismodification, bitumen performance was investigated with standard test methods.Besides, stiffness modulus and plastic stiffness of bitumen was calculatedusing empirical methods. Nowadays, nanotubes were used for modification ofbitumen, commonly. It is known that, nanotubes can improve the bitumenperformance at nano level because of having high specific surface area. Bitumenmodification was conducted with aluminum oxide at 3%, 5% and silicon dioxide at0.3%, 0.5% by weight of bitumen because silicon dioxide has high specificsurface area and specific gravity. Bitumen characteristics were determined bybitumen tests (rotational viscometer, penetration, softening point, ductility,elastic recovery and penetration index). In this study, bitumen performancegrading (PG) system was used and bitumen was used as PG 64-22. In addition,stiffness modulus and plastic stiffness of bitumen was calculated withempirical methods. As a result, 3% Al2O3 and 0.3% SiO2modified bitumen has the best performance according to the modification and basebitumen.
KW  - Empirical modeling
KW  - Stiffness modulus
KW  - Plastic stiffness
KW  - Bitumen performance
KW  - Nanotube modification
N2  - Bu çalışmada, bitüm ile alüminyum oksit vesilikon dioksit yüksek devirli karıştırıcı yardımıyla karıştırılarakmodifikasyon sağlanmıştır. Bumodifikasyonun sonucunda bitüm performansı standart bitüm deneyleri ileincelenmiştir. Ayrıca ampirik yöntemler kullanılarak rijitlik modülühesaplanmıştır. Günümüzde nanotüp modifikasyonu yaygın olarak kullanılan birmetot haline gelmiştir. Nanotüplerin yüksek yüzey alanına sahip olmasındandolayı nano boyutta bitüm performansının iyileştirildiği bilinmektedir. Bitümmodifikasyonu ağırlıkça %3, %5 alüminyum oksit ve %0.3 ve %0.5 oranlarında silikondioksit ile modifiye edilmiştir çünkü silikon dioksitin yüzey alanı ve özgülağırlığı fazladır. Bitüm karakteristikleri bitüm testleri (dönel viskozimetre,penetrasyon, yumuşama noktası, düktilite, elastik geri dönme ve penetrasyonindeksi) ile belirlenmiştir. Çalışmada bitüm performans derecelendirme(Performance Grade – PG) sistemine göre sınıflandırılmış ve PG 64-22 olarakkullanılmıştır. Ayrıca ampirik yöntemle rijitlik modülü hesaplanmıştır.Sonuçta, 3% Al2O3 ve 0.3% SiO2 modifiye edilmiş bitüm diğer modifikasyonlara göredaha iyi sonuç vermiştir.
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UR  - https://dergipark.org.tr/en/pub/jiciviltech/issue//662774
L1  - https://dergipark.org.tr/en/download/article-file/908310
ER  -