scholarly journals Rutting and Fatigue Cracking Resistance of Waste Cooking Oil Modified Trinidad Asphaltic Materials

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Rean Maharaj ◽  
Vitra Ramjattan-Harry ◽  
Nazim Mohamed
Keyword(s):  
Complex Modulus ◽  
Fatigue Cracking ◽  
Waste Cooking Oil ◽  
Cracking Resistance ◽  
Rutting Resistance ◽  
Cooking Oil ◽  
Attractive Option ◽  
Petroleum Bitumen ◽  
Resistance Decrease ◽  
Asphaltic Materials

The influence of waste cooking oil (WCO) on the performance characteristics of asphaltic materials indigenous to Trinidad, namely, Trinidad Lake Asphalt (TLA), Trinidad Petroleum Bitumen (TPB), and TLA : TPB (50 : 50) blend, was investigated to deduce the applicability of the WCO as a performance enhancer for the base asphalt. The rheological properties of complex modulus (G∗) and phase angle (δ) were measured for modified base asphalt blends containing up to 10% WCO. The results of rheology studies demonstrated that the incremental addition of WCO to the three parent binders resulted in incremental decreases in the rutting resistance (decrease inG∗/sinδvalues) and increases in the fatigue cracking resistance (decrease inG∗sinδvalue). The fatigue cracking resistance and rutting resistance for the TLA : TPB (50 : 50) blends were between those of the blends containing pure TLA and TPB. As operating temperature increased, an increase in the resistance to fatigue cracking and a decrease in the rutting resistance were observed for all of the WCO modified asphaltic blends. This study demonstrated the capability to create customized asphalt-WCO blends to suit special applications and highlights the potential for WCO to be used as an environmentally attractive option for improving the use of Trinidad asphaltic materials.

Utilization of coir fibre as an asphalt modifier

2019 ◽  
Vol 35 (2) ◽  
pp. 59-74
Author(s):  
Rean Maharaj ◽  
Rehana Ali ◽  
Dimitri Ramlochan ◽  
Nazim Mohamed
Keyword(s):  
Rheological Properties ◽  
Waste Disposal ◽  
Complex Modulus ◽  
Elastic Solid ◽  
Optimum Concentration ◽  
Coconut Husk ◽  
Coir Fibre ◽  
Attractive Option ◽  
Petroleum Bitumen ◽  
Coconut Fibre

The influence of added coir (coconut) fibre of various lengths (from 2.5 mm to 10 mm) and dosages (up to 8 wt%) on the rheological properties of Trinidad Lake Asphalt (TLA) and Trinidad Petroleum Bitumen (TPB) was evaluated by measuring changes in the phase angle, δ (measure of the elasticity) and the complex modulus, G* (measure of the degree of stiffness). Results indicated that for both TLA and TPB, the highest values of G* (stiffest) and the lowest values of δ (most elastic) were observed for blends containing 2.5-mm coir fibre lengths for added coir concentrations of 6% and 8%, respectively. When compared to the unmodified TLA, the addition of 6 wt% of 2.5-mm coir fibre resulted in the largest significant increase in G* (7.3 times) as well as a significant decrease in δ (from 49.3° to 19.8°), representing a significant stiffening and increased elasticity of the modified blend. For TPB, the optimum concentration of added coir fibre occurred after the addition of 6 wt% of the 2.5-mm coir fibre, which resulted in the largest significant increase in G* of 5.4 times (stiffening) as well as a significant decrease in δ from 86.2° to 47.4° (increased elasticity as the material transformed from an almost viscous liquid to a semi-elastic solid) when compared to the unmodified pure TPB. The utilization of coir fibre for the rheological enhancement of Trinidad asphaltic materials can also provide an environmentally attractive option for solving the waste disposal issues associated with the dumping of waste coconut husk.

scholarly journals PERFORMANCE PREDICTION OF WARM MIX ASPHALT PAVEMENT CONTAINING RECLAIMED ASPHALT PAVEMENT IN RHODE ISLAND

2019 ◽  
Author(s):  
◽  
Neha Shrestha ◽  
Keyword(s):  
Surface Layer ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Fatigue Cracking ◽  
Thermal Cracking ◽  
Creep Recovery ◽  
Reclaimed Asphalt Pavement ◽  
Cracking Resistance ◽  
Rutting Resistance ◽  
Reclaimed Asphalt

The warm mixed asphalt (WMA) technology has gained a lot of interests in the recent years in academia, state agencies and industries. WMA technology allows reductions in production and compaction temperatures guaranteeing relevant environmental and cost saving benefits. The purpose of the present study was to study and evaluate the performance of a typical additive in WMA pavement with Reclaimed Asphalt Pavement (RAP) on rutting, fatigue cracking and thermal cracking resistance on RI Route 102. In the present study, the asphalt binder was tested at different dosages of additive using Dynamic Shear Rheometer (DSR), Rolling Thin Film Oven (RTFO), Pressure Aging Vessel (PAV), Multiple Stress Creep Recovery (MSCR) and Bending Beam Rheometer (BBR). From the overall test, it was found that 0.7% additive would lessen pavement damage due to rutting, fatigue cracking and thermal cracking. Based on the results of binder test, Hot Mix Asphalt (HMA) and WMA specimens containing 20 % RAP were prepared using PG 58-28 asphalt binder and Superpave Gyratory Compactor (SGC). From the volumetric analysis of both HMA and WMA specimens, it was determined that the optimum binder content (OBC) for HMA with 20% RAP was 5.3 percent and the OBC for WMA (0.7% additive with RAP was 5.6%. It was found that the required amount of neat regular asphalt binder for WMA specimen was higher than the one required by HMA. HMA and WMA Specimens with each containing 20% RAP were prepared at OBC and indirect tensile (IDT) strength test were conducted on that specimen. The test indicated that the performance of HMA mixtures was better than WMA with same amount of RAP. RI Route 102 was used as case study in this research study. Route 102 was rehabilitated through Full Depth Reclamation (FDR) in 2015. First half road of RI Route 102 was built with HMA base and surface layer and the other half was built with WMA base and surface layer using a typical additive. It was found that both sections have similar value in Pavement Serviceability Index (PSI) and in International Roughness Index (IRI) at this time. Four specimens were prepared to predict the performance of asphalt pavement using the dynamic modulus and the master curve. Two HMA specimens each were prepared with and without RAP. Similarly, other two WMA specimens were prepared with and without RAP. These four specimens were tested with the Asphalt Mixture Performance Tester (AMPT) machine and developed the master curves for each specimen. The results of the material testing were used to predict the performance of each test sections by using AASHTOWare Pavement ME Design (PavementME) software. It was found that the WMA-RAP performed better in fatigue cracking resistance but was found to perform poor in rutting resistance than HMA and HMA-RAP. This indicated that fatigue cracking was not a problem with WMA-RAP mixtures whereas rutting resistance still requires further investigation and improvement.

scholarly journals Rutting resistance of untreated and treated waste cooking oil in bitumen after aging condition

2019 ◽  
Vol 244 ◽  
pp. 012041 ◽  
Author(s):  
M Nordiana ◽  
W A Wan Nur Aifa ◽  
M R Hainin ◽  
M W Muhammad Naqiuddin ◽  
A H Norhidayah ◽  
...  
Keyword(s):  
Waste Cooking Oil ◽  
Aging Condition ◽  
Rutting Resistance ◽  
Cooking Oil

scholarly journals Performance Testing of Hot Mix Asphalt Modified with Recycled Waste Plastic

2021 ◽  
Author(s):  
Shadi Saadeh ◽  
Pritam Katawał
Keyword(s):  
Fatigue Cracking ◽  
Waste Plastics ◽  
Plastic Pollution ◽  
Cracking Resistance ◽  
Waste Plastic ◽  
Rutting Resistance ◽  
The World ◽  
Ct Test ◽  
Recycled Waste ◽  
The Ideal

Plastic pollution has become one of the major concerns in the world. Plastic waste is not biodegradable, which makes it difficult to manage waste plastic pollution. Recycling and reusing waste plastic is an effective way to manage plastic pollution. Because of the huge quantity of waste plastic released into the world, industries requiring a large amount of material, like the pavement industry, can reuse some of this mammoth volume of waste plastics. Similarly, the use of reclaimed asphalt pavement (RAP) has also become common practice to ensure sustainability. The use of recycled waste plastics and RAP in HMA mix can save material costs and conserve many pavement industries’ resources. To successfully modify HMA with RAP and waste plastic, the modified HMA should exhibit similar or better performance compared to conventional HMA. In this study, recycled waste plastic, linear low-density polyethylene (LLDPE), and RAP were added to conventional HMA, separately and together. The mechanical properties of conventional and modified HMA were examined and compared. The fatigue cracking resistance was measured with the IDEAL Cracking (IDEAL CT) test, and the Hamburg Wheel Tracking (HWT) test was conducted to investigate the rutting resistance of compacted HMA samples. The IDEAL CT test results showed that the cracking resistance was similar across plastic modified HMA and conventional HMA containing virgin aggregates. However, when 20% RAP aggregates were used in the HMA mix, the fatigue cracking resistance was found to be significantly lower in plastic modified HMA compared to conventional HMA. The rutting resistance from the HWT test at 20,000 passes was found to be similar in all conventional and modified HMA.

scholarly journals Full Recycling of Asphalt Concrete with Waste Cooking Oil as Rejuvenator and LDPE from Urban Waste as Binder Modifier

2020 ◽  
Vol 12 (19) ◽  
pp. 8222 ◽  
Author(s):  
Carlos Rodrigues ◽  
Silvino Capitão ◽  
Luís Picado-Santos ◽  
Arminda Almeida
Keyword(s):  
Asphalt Concrete ◽  
Mechanical Performance ◽  
Global Analysis ◽  
Low Cost ◽  
Fatigue Cracking ◽  
Waste Cooking Oil ◽  
Asphalt Mixtures ◽  
Urban Waste ◽  
Cooking Oil ◽  
Water Sensitivity

Some research projects have studied full recycling of reclaimed asphalt pavement (RAP). Several additives have been used to rejuvenate the RAP’s aged bitumen. The authors previously studied full recycling of RAP rejuvenated with waste cooking oil (WCO). The asphalt concrete (AC) manufactured revealed good mechanical behaviour except for rutting resistance. Therefore, they decided to also include in the asphalt mixtures low density polyethylene (LDPE) from urban waste as a low-cost polymer to improve that weak point and verify if this technique was feasible and with potential as a pavement material. A laboratory plan was conceived to evaluate the mechanical performance of two rejuvenated ACs with WCO and LDPE. Stiffness, water sensitivity, resistance to rutting and fatigue cracking were evaluated. The results showed that, despite some empirical parameters usually indicated in current specifications not being met, the performance of the studied asphalt mixtures was adequate and, thus, there are good expectations about the future use of these solutions in real pavements, particularly for low and intermediate traffic levels. Based on a global analysis of the performance observed, the main conclusion was that full recycling of AC with WCO and LDPE is feasible, and the score obtained was higher than that of a conventional AC used for comparison.

Estimation of Recoverable Household Waste Cooking Oil and Life Cycle Analysis of Biodiesel Fuel Production

2008 ◽  
Vol 4 (4) ◽  
pp. 318-323 ◽  
Author(s):  
Hirotsugu KAMAHARA ◽  
Shun YAMAGUCHI ◽  
Ryuichi TACHIBANA ◽  
Naohiro GOTO ◽  
Koichi FUJIE
Keyword(s):  
Life Cycle ◽  
Life Cycle Analysis ◽  
Waste Cooking Oil ◽  
Household Waste ◽  
Biodiesel Fuel ◽  
Fuel Production ◽  
Cooking Oil
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