Category: Recent Conference Papers

Recent Conference Papers, Recent Publications

Ahmed R B, Aurilio V, Hossain K. (2020). Using Rejuvenating Agents to Improve Hot Mix Asphalt Incorporating Reclaimed Asphalt Pavement (RAP). 65th Annual Conference on Canadian Technical Asphalt Association (CTAA). Kelowna, BC, Canada.

Abstract: Reclaimed asphalt pavement (RAP) continues to be the most recycled product in America.  A 2018 US survey conducted by the National Asphalt Pavement Association (NAPA) shows that 82.2 million tons of RAP was reused in new hot mix asphalt (HMA) pavements; this equated to an average RAP content of 21 % which is similar to estimates in Canada where about 15-20 % of the RAP is reused. … View More
Recent Conference Papers, Recent Publications

Reza A, Hossain K, Dhar A. (2020). Compressibility Assessment of Roadway Embankments Using Tire Derived Aggregates (TDA). Canadian Society for Civil Engineering (CSCE) Annual Conference. Saskatoon, Canada.

Abstract: On average, one tire per capita per year is generated in Canada as a waste tire which either goes to landfill or stockpile. Researchers across the world are trying alternative use of scrap tires. Among many civil engineering applications, roadway embankment construction using tire derived aggregates (TDA) is the most popular and ecologically viable due to large amount of consumption of material in the embankment.… View More
Recent Conference Papers, Recent Publications

Ahmed R B, Hossain K. (2020). Characterization of Rejuvenated Asphalt Binders Using FTIR and AFM Techniques. RILEM International Symposium on Bituminous Materials. Lyon, France.

Abstract: This study investigates the chemical and morphological behavior of rejuvenated asphalt binders. A TFOT aged PG 58-28 binder was mixed with three different types of rejuvenators that include waste cooking oil/ untreated used cooking oil (UT), treated used oil (TR), and Hydrolene (HL) at 3%, 6% and 9% by the weight of the total binder.… View More
Recent Conference Papers

Dhasmana H, Hossain K, Karakas A, Swarna S T. (2019). Laboratory Investigation of the Characteristics of Rejuvenated Asphalt Binder. 64th Annual Conference of Canadian Technical Asphalt Association (CTAA). Montreal, QC, Canada

Abstract: To improve the sustainability quotient of pavement materials, recycled asphalt products are utilized. However, asphalt recycling includes the use of oxidized asphalt binder. Aged binder is highly brittle and causes cracking related distresses in flexible pavements. To improve the rheological properties of AC mixes with recycled materials, rejuvenators are used.… View More
Recent Conference Papers, Recent Publications

Khan S, Nagabhushana M N, Hossain K, Tiwari D. (2020). Investigation of Pavement Responses Using Multi-Depth Deflectometer. 99th Annual Meeting of the Transportation Research Board (TRB) of National Academies of Science and Engineering. Washington DC, USA.

Abstract: Load associated cracking and permanent deformations are the common distress found on flexible pavements. Rutting is one of the major failure mechanisms in flexible pavement. The present study focuses on the measurement of rutting using Accelerated Pavement Testing Facility. For the measurement of rutting, the pavement was instrumented with a Multi-Depth Deflectometer (MDD) to measure the interfacial layer deflections for determining permanent deformation of each layer.… View More
Recent Conference Papers, Recent Publications

Alam R, Hossain K, Bazan C. (2020). A Systematic Approach to Estimate GWP from Pavement Vehicle Interaction Using Canadian LTPP Data. 99th Annual Meeting of the Transportation Research Board (TRB) of National Academies of Science and Engineering. Washington DC, USA.

Abstract: Pavement vehicle interaction (PVI) is one of the significant components in the use phase of pavement life cycle assessment. This component has attribution with excess fuel consumption, resulting in an increase in the global warming potential (GWP). Several research have been conducted to model and quantify the PVI effect based on pavement roughness and deflection.… View More
Recent Conference Papers, Recent Publications

Ahmed R B, Hossain K, Aurilio M. (2019). Rheological Characterization of Rejuvenated Asphalt Binders. 99th Annual Meeting of the Transportation Research Board (TRB) of National Academies of Science and Engineering. Washington DC, USA.

Abstract: Using reclaimed asphalt pavement (RAP) material in pavement construction is an environmentally friendly practice. However, the asphalt available in recycled pavements is already oxidized and stiffened due to various environmental processes. As a result, using RAP binder in cold regions like Canada can have a significant negative effect on pavement performance and may accelerate the pavement distresses especially thermal cracking along with the alteration of rheological properties.… View More
Recent Conference Papers, Recent Publications

Rana M, Swarna S T, Hossain K. (2020). Climate Change Impact on Pavement Performance in Newfoundland, Canada. 99th Annual Meeting of the Transportation Research Board (TRB) of National Academies of Science and Engineering. Washington DC, USA.

Abstract: In recent years climate change has become a threat to both the existing and upcoming pavement infrastructure. Most of the researchers agree that the climate change started affecting the existing pavement infrastructure all over the world. Therefore, there is a need for changing the design procedure by considering the climate change.… View More
Recent Conference Papers, Recent Publications

Singhvi P, Karakas A, Ozer H, Al-Qadi I L, Hossain K. (2019). Impact of Asphalt Modifier Dosage on Modified Binder Rheology and Chemistry with Long-Term Aging. International Airfield and Highway Pavement Conference. Chicago, Illinois, USA. Best Paper of Pavements Award, ASCE T&DI Pavement Conference, 2019.

Abstract: Asphalt modifiers/additives are increasingly used in pavement industry. Additives are commonly used as softeners to decrease the binder performance grade (PG), while polymer modifiers are usually used for heavy traffic applications to reduce permanent deformations. Recently, rejuvenators have been used in recycled pavement applications to reduce cracking susceptibility and as retarders to moisture damage.… View More
Recent Conference Papers

Ali A, Hossain K, Swarna S T, Hussein A, Dhasmana H. (2018). Towards Development of PCI and IRI models for road networks in the City of St. John’s, Newfoundland Canada. American Society of Civil Engineers (ASCE) International Conference on Highway Pavements and Airfield Technology. Chicago, Illinois, USA.

Abstract:  Forecasting of pavement condition and roughness is essential for optimization of pavement rehabilitation and treatment programs. This paper develops and presents a new set of Pavement Condition Index (PCI) and International Roughness Index (IRI) model for road networks in the city of St.… View More