Evaluating the Mechanical Performance Properties of Reclaimed Asphalt Pavement Rejuvenated with Different Rejuvenators
Keywords:Asphalt cement, RAP, recycled agent, recycled mixture, waste cooking oil.
The importance of sustainability in road construction using and renewing the Reclaimed Asphalt Pavement (RAP) resulting from the reconstruction or periodic maintenance of roads is a challenge that requires the use of regenerative additions to restore the characteristics of the old bitumen in pure rap, in order to improve the performance properties of these renewable mixers. As there are many promising studies in this regard. The objective of this study is to recycle and restore RAP using two types of renovators; Waste Cooking Oil (WCO) and Asphalt Cement (AC (85-100)). Five percentages (1, 1.5, 2, 2.5 and 3) % by weight of both types of renovators were added to the RAP, separately, for the purpose of rejuvenation. Marshall Test was performed on the renovated samples to obtain the optimum percentages, which will be adopted in subsequent tests, which include; indirect tensile strength (ITS), tensile strength Ratio (TSR) and Duple Punch Shear Strength Test (DPSST) to evaluate the performance of rejuvenated RAP mixes and compare them with the original RAP. The outcomes indicated that (1.5 and 2.5) % are the optimal percentages for (WCO and AC (85-100)), respectively. In addition, the results of the performance tests indicated that the renovated RAP mixes are better than the original RAP in terms of stability, temperature susceptibility, stripping resistance and resistance to moisture damage, as well as achieving the specification requirements for the surface course. This indicates that the recycling process is of economic, environmental benefit and industrial sustainability.
Joni H, Al-Rubaee H, & Al-zerkani A, (2019). Rejuvenation of aged asphalt binder extracted from reclaimed asphalt pavement using waste vegetable and engine oils. Case Studies in Construction Materials, 11, e00279.
Joni H, & Al-Rubaee R, & Ali M, (2020). Characteristics of asphalt binder modified with waste vegetable oil and waste plastics. IOP Conference Series Materials Science and Engineering. 737. 10. 10.1088/1757-899X/737/1/012126.
Widyatmoko I, (2008). Mechanistic-empirical mixture design for hot mix asphalt pavement recycling. Construction and Building Materials, 22(2), 77-87.
Shen J, Amirkhanian S, & Tang B, (2007). Effects of rejuvenator on performance-based properties of rejuvenated asphalt binder and mixtures. Construction and Building Materials, 21(5), 958-964.
García Á, Schlangen E, van de Ven M, & Sierra-Beltrán G, (2010). Preparation of capsules containing rejuvenators for their use in asphalt concrete. Journal of hazardous materials, 184(1-3), 603-611.
Singhabhandhu A, & Tezuka T, (2010). The waste-to-energy framework for integrated multi-waste utilization: Waste cooking oil, waste lubricating oil, and waste plastics. Energy, 35(6), 2544-2551.
Math C, Kumar, P., & Chetty, V, (2010). Technologies for biodiesel production from used cooking oil—A review. Energy for sustainable Development, 14(4), 339-345.
Im S, Karki P, & Zhou F (2016). Development of new mix design method for asphalt mixtures containing RAP and rejuvenators. Construction and Building Materials, 115, 727-734.
Standard A. A. S. H. T. O. (2009). T308: Standard Method of Test for Determining the Asphalt Binder Content of Hot Mix Asphalt (HMA) by the Ignition Method. Standard specifications for Transportation Materials and Methods of Sampling and Testing
ASTM D5/D5M-19a (2019). Standard test method for penetration of bituminous materials. ASTM International, West Conshohocken, www.astm.org
ASTM D36/D36M-14e1 (2014). Standard Test Method for Softening Point of Bituminous Materials (Ring-and-Ball Apparatus).ASTM International, West Conshohocken, PA, www.astm.org
ASTM D113-17 (2017). Standard test method for ductility of bituminous materials. ASTM International, West Conshohocken, PA, www.astm.org
ASTM D2170/D2170M-18 2018, Standard Test Method for Kinematic Viscosity of Bituminous Materials ASTM International, West Conshohocken, PA, www.astm.org
ASTM D92-18 2018. Standard test method for flash and fire points by Cleveland open cup tester. ASTM International, West Conshohocken, PA, www.astm.org
ASTM D70-18a 2018, Standard Test Method for Specific Gravity and Density of Semi-Solid Bituminous Materials (Pycnometer Method). ASTM International, West Conshohocken, PA, www.astm.org
ASTM D1754/D1754M-09 201. Standard test method for effects of heat and air on asphaltic materials (thin-film oven test), ASTM International, West Conshohocken, PA www.astm.org
ASTM D1559-2015. Standard Test Method for measure Stability and Flow. ASTM International, West Conshohocken, PA, www.astm.org
ASTM D2726-08, Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures, ASTM International, West Conshohocken, PA, 2008, www.astm.org
ASTM D2041-03, Standard Test Method for Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures, ASTM International, West Conshohocken, PA, 2003, www.astm.org
ASTM D3203-05, Standard Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures, ASTM International, West Conshohocken, PA, 2005, www.astm.org
ASTM D6931-07, Standard Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, ASTM International, West Conshohocken, PA, 2007, www.astm.org
ASTM D4867/D4867M Standard Test Method for Effect of Moisture on Asphalt Concrete Paving Mixtures
Jimenez A, (1974). Testing for Debonding of Asphalt from Aggregates, Transportation
Research Record 515, TRB, National Research Council, Washington, D.C., pp. 1–17.
Kiggundu M, Roberts L, (1988). Stripping in Hma Mixtures: State-Of-The-Art and Critical Review of Test Methods, National Centre for Asphalt Technology, NCAT Report No.88-2
Solaimanian J, Harvey M, Tahmoressi, and Tandon, V, (2004). Test Methods to Predict Moisture Sensitivity of Hot-Mix Asphalt Pavements, Moisture Sensitivity of Asphalt Pavements CD-ROM, Transportation Research Board, National Research Council, Washington, D.C., pp. 77-110.
Turos I, (2010). Determining the Flexural Strength of Asphalt Mixtures using the Bending Beam Rheometer. M.Sc. Thesis, University Of Minnesota
Sarsam I, (2006). Improving Asphalt Concrete Quality for Ramps and Approaches”. Indian Highways, 34 (3), PP.61- 66
Hasan A, (2012). Assessing Performance of Recycled Asphalt Concrete Sustainable Pavement”. M.Sc. thesis, College of Engineering, University of Baghdad
AL-Shujairy S, (2014). Test Fatigue and Rutting Potentials of Recycled Sustainable Asphalt Pavement. M.Sc. thesis, College of Engineering, University of Baghdad
Sarsam and Saleem, (2018). Prospects of Using Liquid Asphalt as Rejuvenation Agent for Asphalt Pavement recycling”, submitted to Advancements in Materials, 2, page 64-74,.
AL-Taee SH, (2019). Influence of Additives on the Durability of Recycled Asphalt Concrete .MSc. thesis, College of Engineering; University of Baghdad
AL-Zubaidi I, (2013). Durability of Recycled Asphalt Concrete Pavement. MSc. Thesis, College of Engineering; University of Baghdad