Effect of Crumb rubber on Performance of bituminous mix

• Main Author: Ahmad Izaidi bin Abd Azis, Ahmad Izaidi
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2009
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://utpedia.utp.edu.my/500/1/ahmad_izaidi.pdf; http://utpedia.utp.edu.my/500/

Rubberized asphalt has been used for more than 20 years to resurface highways. While it helped reduce the disposal of used tires, it recently has been recognized for its reduction of traffic noise but the rise in road traffic and lack of maintenance has weakened the road structure and damage the surface. This research project is to study the effect of crumb rubber on the performance of bituminous mixture. The implementation of the crumb rubber on the bituminous mixture is to test whether the crumb rubber can possibly strengthen the conventional bituminous mix to reduce the damage and to reduce maintenance of road and also to compare with the result with the conventional bituminous mix. The scope of this study is the performance of modified bituminous mix by adding the crumb rubber as portion of fine aggregates and the performance of the sample will be tested using two testing methods which are wheel tracking test and creep test. This project started with the preliminary research followed by case study and literature review by collecting journals, determining percentage of crumb rubber, laboratory works where characteristic of materials, composition of mixture, test methods and type of compaction selected, manufacturing samples and testing sample done. After the laboratory works done, data gathered and processed and analyzed, then result and discussion produced and last but not least conclusion and recommendation. As a conclusion of this project, the crumb rubber cannot be applied for fine aggregates for partial replacement in dry process mixing in order to strengthen the bituminous mix.