Effect of Crumb Rubber Modified Bitumen in Hot Mix Asphalt Concrete

  • Zakari U. Farouq Ahmadu Bello University, Zaria
  • Murana A. Adinoyi Ahmadu Bello University, Zaria
  • Olowosulu A. Taiwo Ahmadu Bello University, Zaria
  • Abejide S. Olusegun Ahmadu Bello University, Zaria
Keywords: Crumb rubber, Hot Mix Asphalt


Improving bituminous material using recycling waste (Crumb rubber) as modifier was emphasized in this paper. Crumb rubber (CR) waste was added by volume to the bitumen in 0, 5, and 7 %. The volumetric  properties tests  were conducted using the Marshall Test (ASTM D1559), others includes  Characterization of Binder  and Aggregate materials in HMA, (FTIR Analysis), Fundamental mechanical properties tests, also Rheological properties according with ASTM D7369-11, Dynamic Modulus Test, according with AASHTO R83-17, Rutting Test according with AASHTO T324-04, Fatigue Cracking Evaluation according with AASHTO TP124 and Flexural Beam Fatigue Beam Test according with AASHTO T 321-07. The result indicates that crumb rubber is very suitable as a modifier, with bitumen of 60/70 PEN grade. From the results, at the designed production temperature 135oC for unmodified 60/70 Bitumen, the modified admixed samples (0% and 5% CR) at the same binder content show a high void percentage for mixes (5% CR). This is an indication that the modified asphalt mixtures exhibited volumetric properties with higher voids and lower density due to change in viscosity caused by modification and requires compaction at higher temperature to be at par with regular unmodified bitumen grade. However, the air voids of mixtures fall within the specification range of 3% to 5%, and as such acceptable for use as a modifier in 60/70 PEN grade bitumen.

Author Biographies

Murana A. Adinoyi, Ahmadu Bello University, Zaria
A Senior Lecturer in the Highway Section of Civil Engineering Department, Faculty of engineering Ahmadu Bello University, Zaria 
Olowosulu A. Taiwo, Ahmadu Bello University, Zaria
Professor in the Highway Section Department of Civil Engineering, Faculty of Engineering, Ahmadu Bello University, Zaria 
Abejide S. Olusegun, Ahmadu Bello University, Zaria
Professor in the Department of Civil Engineering, Faculty of Engineering, Ahmadu University Zaria, 


ASTM International, "Standard Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures ASTM D6931," in Annual book of ASTM standards, West Conshohocken, PA, 2012.

American Association of State Highway and Transportation Officials, (2000.) AASHTO M320. Standard Specification for Performance Graded Asphalt Binder.

American Association of State Highway and Transportation Officials, (2020.) AASHTO T315 "Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer,"

American Association of State Highway and Transportation Officials, (2009). AASHTO T 53, Standard Method of Test for Softening Point of Bitumen (Ring-and-Ball Apparatus).

"American Society of Testing Materials (ASTM) D6931. "Standard Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures" Annual Book of ASTM Standards, Road and Paving Materials; Vehicle-Pavement Systems, 04.03, West Conshohocken, Pennsylvania".

"American Association of State Highway and Transportation Officials (AASHTO) T 378 – 17, “Standard Method of Test for Determining the Dynamic Modulus and Flow Number for Asphalt Mixtures Using the Asphalt Mixture Performance Tester (AMPT)”, Standard Specifications".

"American Association of State Highway and Transportation Officials (AASHTO) T 324, "Standard Method of Test for Hamburg Wheel-Track Testing of Compacted Hot-Mix Asphalt". Standard Specifications for Transportation Materials and Methods of Sampling and Tes".

American Association of State and Highway Transportation Officials (AASHTO) T321. “Determining the Fatigue Life of Compacted Hot Mix Asphalt (HMA) Subjected to Repeated Flexural Bending”. Standard Specifications for Transportation Materials and Methods".

American Association of State Highway and Transportation Officials TP124. " Determining the Fracture Potential of Asphalt Mixtures Using Semicircular Bend Geometry (SCB) at Intermediate Temperature ", AASHTO Provisional Standards, Washington, D.C., (2016)".

Buttlar, W. and Roque, R. (1994) Development and Evaluation of the SHRP Measurement and Analysis System for Indirect Tensile Testing at Low Temperatures. Transportation Research Board Meeting."

California Department of Transportation, Caltrans (2007) “Flexible Pavement Preservation” 2nd Edition, Volume 1 Chapter 8. Page 6 – 20

Farouq. Z.U. (2014) “A study of Crumb Rubber Modified Asphalt Slurry Seal Emulsions”, M.Sc. Thesis Department of Civil Engineering, Faculty of Engineering Ahmadu Bello University, Zaria.

Federal Ministry of Works & Housing (1997) Specification for Roads and Bridges Vol. II. FMW&H, Ministry of Works and Housing, Abuja.

Kolo S.S, (2015), Evaluation of Natural and Artificial Aggregates in Hot Mix Asphalt Production Department of Civil Engineering, Federal University of Technology, Minna, Nigeria.

Kriz P., Grant D, Boussad N, Gausson D, Cointe F., Toulemonde C, Shirts R. (2016) “Assessment of Performance Specification tests for Rheologically simple Bitumens” Research Department, Imperial Oil Limited, Sarnia, ON, Canada European Technology Centre, Esso S.A.F., Notre Dame de Gravenchon, France Esso S.A.F., Courbevoie, France ExxonMobil Corp., Spring, TX, United States

Mamo1 A.A. Dagoye M.B, Tessema A.R (2019) Determining the Physical Properties of Aggregate Products and its Suitability for Road Base Construction, Ethiopia Civil Engineering Department, Wolaita Sodo Univeristy, Ethiopia

Nigeria General Specification for Roads and Bridges (1997)

Otuoze H.S, Ejeh S.P, Amartey Y.D, Manasseh J , Shuaibu A.A, and Oziohu K.Y. (2018) “Rheology and Simple Performance Test (SPT) Evaluation of High-Density Polypropylene (HDPP) Waste-Modified Bituminous Mix” Civil Engineering Department, Ahmadu Bello University, Zaria, Nigeria Jordan Journal of Civil Engineering; Irbid Vol. 12, Iss. 1,

Romanoschi A. S, Nicoleta I. D. and Octavian D. (2006). “Resilient Modulus and the Fatigue Properties of Kansas Hot Mix Asphalt Mixes” The Kansas Department of Transportation Topeka, Kansas and Kansas State University Manhattan, Kansas

Road Sector Development Team (RSDT), (2013) Road Sector Development Highway manual‟ Part1: Design, Volume 3; Pavements and Material Design, Federal Ministry of Works, Abuja.

Rust, FC. (1984)“Load-Associated Crack Movement in Road Pavements”. In: Bitumen- Rubber - review of developments in South Africa. Proceedings of the Fourth Annual Transportation Convention, Pretoria

Rust, FC and I Akhalwaya (2018.) “Retarding Crack Reflection Using Bitumen-Rubber Seals and Overlay – Historic Overview of CSIR Research”, Rubberized Asphalt <> Bitumen Rubber,

Suliman A.B.A, Mohd I.M.M, Musbah A. “Evaluation of volumetric properties of asphalt mixture by using Batu Pahat Soft Clay as filler” Department of Civil Engineering (JTKA), Universiti Tun Hussein Onn Malaysia. Ahmed does research in Civil Engineering. Their current project is 'Urban Panning for libyan Cities'.

Trejos C. A. C. Sebaaly P.E., Elie Y. Hajj E. Y., Hand A., Lowman J. and David W. Z. (2018) “Performance Evaluation of Asphalt Mixtures with Tire Rubber Modified Binder” A thesis submitted in partial fulfillment of the Requirements for the degree of Master of Science in Civil and Environmental Engineering University of Nevada, Reno

(United Nation Educational Scientific and Cultural Organisation (2008). Introduction to Highway Engineering‟ (Technical and Vocational Education, Version 1). P 5-40.

Yongjun M., Tiany Y., Yaseen M., Ing Li. (2022) “Study on the performance and sustainability of modified waste crumb rubber and steel slag powder/SBS composite modified asphalt mastic.” Journal of Cleaner Production Vol. 338, College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi, 530004, China.