Publications: asphalt pavement research, 2011 to 2023

Feasibility and mixture performance assessment of waste oil based rejuvenators in high-RAP asphalt mixtures

Derya Kaya Ozdemir, Peyman Aghazadeh Dokandari, Hameedullah Raufi, Ali Topal, Burak Sengoz

Materials Research Express, vol. 10, no. 4, article 045306

Tests two waste oils and a commercial rejuvenator in high-RAP asphalt mixtures; rejuvenation allowed 50 to 60% more RAP, and a cost-benefit and return-on-investment analysis is included.

Rheological and Microstructural Investigation of the Effects of Rejuvenators on Reclaimed Asphalt Pavement Bitumen by DSR and AFM

Peyman Aghazadeh Dokandari, Ali Topal, Derya Kaya Ozdemir

International Journal of Civil Engineering, vol. 19, no. 7, pp. 749-758

Examines how two waste oils and a commercial rejuvenator restore the rheology and surface microstructure of aged RAP bitumen, using dynamic shear rheometer testing and atomic force microscopy.

Investigation of the Properties of Warm Mix Asphalt Involving Organic Additive

Ali Topal, Baha Vural Kök, Derya Kaya, Burak Şengöz, Peyman Dokandari, Mehmet Yılmaz

Turkish Journal of Science and Technology, vol. 13, no. 1, pp. 45-53

Evaluates an organic warm mix asphalt additive through bitumen tests, dynamic shear rheometer, Marshall mix design, stiffness modulus, fatigue, creep and Hamburg wheel-tracking tests.

Evaluation of Rutting Performance of Warm Mix Asphalt

Ali Topal, Julide Oner, Burak Sengoz, Peyman Aghazadeh Dokandari, Derya Kaya

International Journal of Civil Engineering, vol. 15, no. 4, pp. 705-714

Characterises organic, chemical and water-containing warm mix additives on bitumen and tests rutting with a Hamburg wheel-tracking device; all warm mixes rutted less than hot mix.

Performance Evaluation of Warm Mix Asphalt Mixtures with Recycled Asphalt Pavement

Burak Sengoz, Ali Topal, Julide Oner, Mehmet Yilmaz, Peyman Aghazadeh Dokandari, Baha Vural Kok

Periodica Polytechnica Civil Engineering, vol. 61, no. 1, pp. 117-127

Examines four warm mix additives (organic, chemical, synthetic zeolite, natural zeolite) with different rates of recycled asphalt pavement, testing Marshall properties, stiffness modulus, fatigue and permanent deformation.

Effects of Warm Mix Asphalt Additives on Aging Characteristics of Bituminous Mixtures

Peyman Aghazadeh Dokandari, Ali Topal

Periodica Polytechnica Civil Engineering, vol. 59, no. 4, pp. 475-486

Compares short- and long-term aging of mixtures with four warm mix additives (two non-foaming, two foaming) using indirect tensile strength ratios of aged and unaged specimens.

Organik Ilık Karışım Asfalt Katkı Maddesinin Bitümlü Karışımların Yaşlanma Özellikleri Üzerine Etkilerinin İncelenmesi

Peyman Aghazadeh Dokandari, Julide Oner, Ali Topal, Burak Sengoz

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi (Pamukkale University Journal of Engineering Sciences), vol. 20, no. 9, pp. 332-337

Studies how an organic warm mix additive affects aging of bituminous mixtures via indirect tensile strength ratios of aged to unaged specimens; warm mixes aged less than hot mix.

Laboratory comparison of aging characteristics of warm mix asphalts involving natural and synthetic water containing additives

Ali Topal, Peyman Aghazadeh Dokandari

Materials Research, vol. 17, no. 5, pp. 1129-1136

Compares aging of bituminous mixtures containing natural and synthetic zeolite warm mix additives, using aging indices from indirect tensile strength after simulated short- and long-term aging.

Evaluation of mixture characteristics of warm mix asphalt involving natural and synthetic zeolite additives

Ali Topal, Burak Sengoz, Baha Vural Kok, Mehmet Yilmaz, Peyman Aghazadeh Dokandari, Julide Oner, Derya Kaya

Construction and Building Materials, vol. 57, pp. 38-44

Investigates warm mix asphalt with natural zeolite compared with a commercial synthetic zeolite and hot mix, testing Marshall stability, indirect tensile stiffness modulus and fatigue behavior.

Short Term and Long Term Aging Performance Effects of Mixing Conditions on the Rheological Characteristics of Styrene-Butadiene-Styrene Modified Bitumen

Derya Kaya, Ali Topal, Burak Şengöz, Peyman Aghazadeh Dokandari

13th International Congress on Advances in Civil Engineering (ACE 2018), İzmir, Turkey, 12-14 September 2018

Investigation of the Properties of Warm Mix Asphalt Involving Organic Additive

Ali Topal, Baha Vural Kök, Derya Kaya, Burak Şengöz, Peyman Aghazadeh Dokandari, Mehmet Yılmaz

International Conference on Advances and Innovations in Engineering, Elazığ, Turkey, 10-12 May 2017

Surface Texture Evaluation of Concrete Pavements in Comparison with Hot Mix Asphalt Pavement

Ali Topal, Derya Kaya, Peyman Aghazadeh Dokandari, Burak Şengöz

2nd International Conference on Civil and Environmental Engineering (ICOCEE), Nevşehir, Turkey, 8-10 May 2017 (abstract)

Implementing Waste Oils with Reclaimed Asphalt Pavement

P. Aghazadeh Dokandari, D. Kaya, B. Sengoz, A. Topal

Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE'17), Barcelona, Spain, 2-4 April 2017, paper ICSENM 142

Determines optimum waste engine oil and waste vegetable oil contents as rejuvenators and shows they raise the amount of reclaimed asphalt pavement usable in bituminous mixtures.

Permanent deformation characteristics of warm mix asphalt

Julide Oner, Ali Topal, Burak Sengoz, Peyman Aghazadeh Dokandari

6th Eurasphalt & Eurobitume Congress, Prague, Czech Republic, 1-3 June 2016

Evaluates organic and chemical warm mix additives with different percentages of RAP and measures permanent deformation of the optimum-RAP mixtures with a Hamburg wheel tracking test.

Impact of Waste Engine Oil as Rejuvenator on Utilization of Reclaimed Asphalt Pavement in Bituminous Mixtures

Peyman Aghazadeh Dokandari, Derya Kaya, Ali Topal, Burak Şengöz, Jülide Öner

Road and Rail Infrastructure IV, Proceedings of the 4th International Conference on Road and Rail Infrastructure (CETRA 2016), Šibenik, Croatia, 23-25 May 2016, pp. 245-258

Investigates waste engine oil as a rejuvenator to raise the amount of reclaimed asphalt pavement usable in bituminous mixtures, using Marshall and indirect tensile strength tests.

Yapay olarak yaşlandırılmış asfalt karışımların ılık asfalt karışımlarda kullanılması

Jülide Öner, Peyman Aghazadeh Dokandari, Burak Şengöz, Ali Topal, Derya Kaya

11. Ulaştırma Kongresi, İstanbul, Turkey, 27-29 May 2015

Effects of a chemical WMA additive on aging characteristics of bituminous mixtures

Peyman Aghazadeh Dokandari, Julide Oylumluoglu Oner, Ali Topal, Burak Sengoz

Road and Rail Infrastructure III, Proceedings of the 3rd International Conference on Road and Rail Infrastructure (CETRA 2014), Split, Croatia, 28-30 April 2014, pp. 401-407

Evaluates a chemical warm mix additive's effect on aging of bituminous mixtures using indirect tensile strength aging indices; additive mixes resisted hardening better than hot mix.

Doğal Zeolit ve Sentetik Zeolit İçeren Ilık Karışım Asfaltların Reolojik Özelliklerinin İncelenmesi

Peyman Aghazadeh Dokandari, Jülide Öner, Ali Topal, Burak Şengöz, Derya Kaya, İsmail Çağrı Görkem

6. Ulusal Asfalt Sempozyumu ve Sergisi, Ankara, Turkey, 27-28 November 2013

Köpüklendirme esaslı katkılar içeren ılık karışım asfaltlarda geri kazanılmış asfalt kullanımı

Jülide Öner, Peyman Aghazadeh Dokandari, Burak Şengöz, Ali Topal

6. Ulusal Asfalt Sempozyumu ve Sergisi, Ankara, Turkey, 27-28 November 2013, pp. 201-215

Organik ılık karışım asfalt katkı maddesinin bitümlü karışımların yaşlanma özellikleri üzerinde etkilerinin incelenmesi

Peyman Aghazadeh Dokandari, Jülide Öner, Ali Topal, Burak Şengöz

10. Ulaştırma Kongresi, İzmir, Turkey, 25-27 September 2013, pp. 119-129

Beton Yolların Yüzey Doku Özelliklerinin İncelenmesi

Ali Topal, A. Ç. Yamanlar, Peyman Aghazadeh Dokandari, Jülide Öner, Ali Rıza Berkay Cinbaş, Amir Onsori

Beton 2011 Hazır Beton Kongresi, İstanbul, Turkey, 20-22 October 2011, pp. 202-211

The properties of reclaimed asphalt used in road construction by rejuvenating agents

Peyman Aghazadeh Dokandari

Dokuz Eylül University, Graduate School of Natural and Applied Sciences (Ph.D. thesis)

Investigates rejuvenators, two waste oils and a commercial product, for aged reclaimed asphalt pavement bitumen, using rheological, AFM and FTIR analysis plus Marshall and indirect tensile tests on mixtures.

Effects of warm mix asphalt additives on aging characteristics of bituminous mixtures

Peyman Aghazadeh Dokandari

Dokuz Eylül University, Graduate School of Natural and Applied Sciences (M.Sc. thesis)

Applies short- and long-term aging to mixtures with four warm mix additives (Sasobit, Rediset WMX, Advera, natural zeolite) and compares aging indices from indirect tensile strength with hot mix.

Doğal zeolit içeren ılık karışım asfaltların performansları ve çevresel etkilerinin değerlendirilmesi, sonuçların farklı ılık karışım asfalt uygulamaları ile karşılaştırılması

Ali Topal, Baha Vural Kök, Mehmet Yılmaz, Perviz Ahmedzade, Burak Şengöz, Çağrı Görkem, Peyman Aghazadeh Dokandar, Derya Kaya

TÜBİTAK MAG research project no. 110M567, Dokuz Eylül University (project end date 31 March 2014)