Superpave Sisteminde Bölge Meteorolojik Hava Verileri Kullanılarak Performans Dereceli (PG) bağlayıcı sınıfı seçimi

Yıl 2011, Cilt: 27 Sayı: 1, 88 - 106, 01.02.2011

Tacettin Geçkil Taner Alataş Perviz Ahmedzade

Öz

Bu çalışmada, uygulama bölgesi olarak seçilen Elazığ için, Meteoroloji İl Müdürlüğü hava sıcaklık veri tabanı kullanılarak Superpave sistemine göre bölgeye uygun Performans Dereceli (PG) bağlayıcı sınıfı seçilmiş ve seçilen bağlayıcının performans seviyesi ölçülerek uygunluğu araştırılmıştır. Bu amaçla, bölgenin son 20 yıldaki en yüksek ve en düşük hava sıcaklıkları, coğrafi konumu ve trafik şartları dikkate alınarak bağlayıcı sınıfı belirlenmiştir. TÜPRAŞ rafinerisinden temin edilen B 70/100 ve B 160/220 penetrasyon dereceli iki bitümlü bağlayıcı Dönel İnce Film Etüvü Deney (RTFOT) yöntemiyle yaşlandırılmış ve ayrıca Dönel Viskozimetre (RV) deneyine tabi tutularak karıştırma ve sıkıştırma sıcaklıkları tespit edilmiştir. Yaşlandırma işleminden önce ve sonra Dinamik Kayma Reometresi (DSR) deneyi ile bağlayıcıların yüksek sıcaklık performans seviyeleri belirlenmiştir. Yaşlandırılmış bitümlü bağlayıcılar Kiriş Eğme Reometresi (BBR) deneyine tabi tutulmuş ve kaplamanın inşaatından hemen sonraki düşük sıcaklık performans seviyeleri tespit edilmiştir. Elde edilen sonuçlara göre B 70/100 bağlayıcısının Elazığ bölge iklim şartlarında, tekerlek izi ve düşük sıcaklık çatlağı dayanımı bakımından uygun performans özellikleri gösterdiği ancak B 160/220 bağlayıcısının performans özelliklerinin yetersiz olduğu belirlenmiştir.

Anahtar Kelimeler

Superpave, performans dereceli bağlayıcı, yaşlanma, tekerlek izi, düşük sıcaklık çatlağı

Selection of Performance Graded (PG) Binder Class In Superpave System Using Region Meteorological Weather Data

Öz

In this study, appropriate performance graded (PG) binder class for region according to Superp system was selected by using Meteorologiy Nation Directorate weather temperature database Elazığ application region and the suitability of selected binder was investigated by measuring performance level. At this aim, the binder class was determined by considernig the highest and low temperatures for recent 20 years, geographical location and traffic conditions of region. T penetration graded which are B 70/100 and B 160/220 bituminous binders obtained from TÜPR refinery was aged with Rolling Thin Film Oven Test (RTFOT) method and furthermore their mix and pressing temperatures were fixed by applying Rotational Viscometer (RV) experiment. The h temperature performance levels of binders were determined by applying Dynamic Shear Rheom (DSR) experiment before and after aging processes. The aged bituminous binders were fixed applying Bending Beam Rheometer (BBR) experiment and the low temperature performance levels pavement just builded were determined. It was determined with respect to obtained results tha 70/100 binder has suitable performance properties for Elazığ region climate conditions, resistance running and low temperature cracking and on contrary, performance properties of B 160/220 bin was determined as unqualified.

Anahtar Kelimeler

Superpave, performance graded binder, aging, running, low temperature cracking

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