A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Study on Gilsonite-Modified Asphalt
This paper presents an experimental study on investigating the properties of Alaskan asphalt binder modified with different percentages of gilsonite over a wide range of climatic conditions by addressing the performance grade (PG) of gilsonite-modified binders according to Superpave specifications. The base asphalt used in this study was the neat asphalt with PG 52-28, and 5 different percentages of gilsonite (0, 3%, 6%, 9%, and 12% of total binder content) were introduced. With the increase of gilsonite content from 0% to 12%, the PG high temperature increased from 52°C to 70°C. However, the PG low temperature also increased from –28°C to –22°C. The results indicated that the addition of gilsonite tends to improve the rutting resistance of asphalt binders, however, increases the tendency for fatigue cracking and low temperature cracking. Adding low content of gilsonite (i.e. 3% within the scope of this study), the modified binder presents improved rutting resistance without any compromise of resistance to low temperature cracking.
Experimental Study on Gilsonite-Modified Asphalt
This paper presents an experimental study on investigating the properties of Alaskan asphalt binder modified with different percentages of gilsonite over a wide range of climatic conditions by addressing the performance grade (PG) of gilsonite-modified binders according to Superpave specifications. The base asphalt used in this study was the neat asphalt with PG 52-28, and 5 different percentages of gilsonite (0, 3%, 6%, 9%, and 12% of total binder content) were introduced. With the increase of gilsonite content from 0% to 12%, the PG high temperature increased from 52°C to 70°C. However, the PG low temperature also increased from –28°C to –22°C. The results indicated that the addition of gilsonite tends to improve the rutting resistance of asphalt binders, however, increases the tendency for fatigue cracking and low temperature cracking. Adding low content of gilsonite (i.e. 3% within the scope of this study), the modified binder presents improved rutting resistance without any compromise of resistance to low temperature cracking.
Experimental Study on Gilsonite-Modified Asphalt
Liu, Juanyu (author) / Li, Peng (author)
Airfield and Highway Pavements 2008 ; 2008 ; Bellevue, Washington, United States
Airfield and Highway Pavements ; 222-228
2008-10-10
Conference paper
Electronic Resource
English
Experimental Study on Gilsonite-Modified Asphalt
| British Library Conference Proceedings | 2008
Gilsonite, an Asphalt Modifier
| NTIS | 1992
Rhinopatch Gilsonite asphalt reinstatement system
| British Library Online Contents | 1999
Rutting Resistance and Fatigue Behavior of Gilsonite-Modified Asphalt Binders
| British Library Online Contents | 2018