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The relationship between marshall stability, flow and rutting of The New Malaysian hot-mix asphalt mixtures

Abukhettala, Mukhtar Elseddig (2006) The relationship between marshall stability, flow and rutting of The New Malaysian hot-mix asphalt mixtures. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering.

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Abstract

Hot-mix asphalt (HMA) has reasonably served well in the past. The high tire pressures and increased wheel loads of traffic moving on roads is primarily considered as the major cause of increasing the premature rutting of asphalt pavement. Therefore, it has become necessary to improve HMA mixtures to withstand the increased stresses. Many road pavement agencies have been using Marshall Mix Design method for designing HMA mixtures and it is believed that fundamental changes must be made in the aggregate components of HMA to reduce rutting to tolerable levels. Properties of Hot-mix asphalt mixtures such as stability, durability, and resistance to permanent deformation (rutting) can be largely affected by aggregate gradation. Hence, gradation is considered as the centerpiece property of aggregate that influences the performance of asphalt pavement. However, other factors such as field compaction efforts and bitumen content have also some effects on pavement performance. In Malaysia, rutting has been a continuous problem and it has become necessary to give more attention to selecting materials that could minimize this problem. Jabatan Kerja Raya (JKR) has recently set up a new standard for asphalt mixes that could be rut resistant. In This research, an attempt was made to evaluate the relationships between Marshall Stability, flow and rut depth of the New Malaysian Hot-Mix Asphalt mixtures using five different asphalt mixtures, which are ACW10, ACW14, ACB28, SMA14 and SMA20. Stability and flow values of all mixes had been determined at the optimum bitumen content obtained from Marshall Design Method. Rut depth has been evaluated using the Three-Wheel immersion tracking Machine. Results have revealed that there is no good correlation between Stability and flow of the new Malaysian HMA mixtures. It was concluded that Stability, Flow and Stiffness can not be used to predict Rutting potential of the New Malaysia hot-mix asphalt mixtures

Item Type:Thesis (Masters)
Additional Information:Thesis (Master of Engineering (Civil - Transportation and Highway)) - Universiti Teknologi Malaysia, 2006
Uncontrolled Keywords:Hot-mix asphalt (HMA); Marshall Mix Design (ASTM D1559); evaluating of Rutting Potential Using the Three- Wheel Immersion Tracking Machine
Subjects:T Technology > TE Highway engineering. Roads and pavements
Divisions:Civil Engineering
ID Code:1957
Deposited By: Ms Zalinda Shuratman
Deposited On:20 Mar 2007 00:45
Last Modified:14 Nov 2012 03:12

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