Effects of Gilsonite on Performance Properties of Bitumen

Perviz AHMEDZADE; Omar ALQUDAH; Taylan GÜNAY; Tacettin GEÇKİL

doi:https://doi.org/10.18400/tekderg.783300

Makale detayları

Effects of Gilsonite on Performance Properties of Bitumen

Yazarlar:

Perviz AHMEDZADE | Omar ALQUDAH | Taylan GÜNAY | Tacettin GEÇKİL

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2022 Vol.33 Issue 2, pp.11779-11798

Belge Tipi:

Makale

Yayın Tarihi:

2/2022

Belge Dili:

İngilizce

Document ID (Org No.):

2000648265

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.783300

Özet:

 

The effectiveness of natural Gilsonite on the performance properties of modified bitumens was studied. Three samples having different ratios of Gilsonite that are 6%, 8% and 10% by weight of base bitumen which was PG 64-16 grade were prepared. The physical properties and storage stabilities of four samples were investigated by means of conventional tests. The short-term and long-term aging processes of bitumens were conducted with rolling thin oven and pressure aging vessel tests, respectively. Rheological properties of bitumens were examined by means of Superpave tests such as rotational viscosity, dynamic shear rheometer and bending beam rheometer. After the rheological study, the low and high temperature performance classes of bitumens were determined by the Superpave specification. The results showed that natural Gilsonite-modified bitumens provide improvement in rheological and physical properties of bitumen, and were found highly compatible with base bitumen. Gilsonite additive significantly increased stiffness and viscosity of bitumen, and improved the resistance against fatigue cracking and rutting of bitumen, without causing a reduction in thermal cracking resistance of bitumen.

 

The effectiveness of natural Gilsonite on the performance properties of modified bitumens was studied. Three samples having different ratios of Gilsonite that are 6%, 8% and 10% by weight of base bitumen which was PG 64-16 grade were prepared. The physical properties and storage stabilities of four samples were investigated by means of conventional tests. The short-term and long-term aging processes of bitumens were conducted with rolling thin oven and pressure aging vessel tests, respectively. Rheological properties of bitumens were examined by means of Superpave tests such as rotational viscosity, dynamic shear rheometer and bending beam rheometer. After the rheological study, the low and high temperature performance classes of bitumens were determined by the Superpave specification. The results showed that natural Gilsonite-modified bitumens provide improvement in rheological and physical properties of bitumen, and were found highly compatible with base bitumen. Gilsonite additive significantly increased stiffness and viscosity of bitumen, and improved the resistance against fatigue cracking and rutting of bitumen, without causing a reduction in thermal cracking resistance of bitumen.

Makale detayları

Effects of Gilsonite on Performance Properties of Bitumen

Yazarlar: Perviz AHMEDZADE | Omar ALQUDAH | Taylan GÜNAY | Tacettin GEÇKİL

Yayıncı: TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar: İnşaat mühendisliği

Dergi: Teknik Dergi 2022 Vol.33 Issue 2, pp.11779-11798

Belge Tipi: Makale

Yayın Tarihi: 2/2022

Belge Dili: İngilizce

Document ID (Org No.): 2000648265

Sıklık: İki Aylık

pISSN: 1300-3453

DOI: https://doi.org/10.18400/tekderg.783300

Sayı

Yazarlar:

Perviz AHMEDZADE | Omar ALQUDAH | Taylan GÜNAY | Tacettin GEÇKİL

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2022 Vol.33 Issue 2, pp.11779-11798

Belge Tipi:

Makale

Yayın Tarihi:

2/2022

Belge Dili:

İngilizce

Document ID (Org No.):

2000648265

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.783300