Lamia A. Ahmed
Abstract
In order to increase the durability of highway pavement specific requirements are needed to control the quality of pavement materials. Therefore, the aim of this study is to make and ...
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In order to increase the durability of highway pavement specific requirements are needed to control the quality of pavement materials. Therefore, the aim of this study is to make and test laboratory specimens in order to characterize asphalt-polymer and aggregate mixtures by using results from conventional test procedures. The research work covers six percentages of polymer content those are (2%, 4%, 6%, 8%, 10%, and 12%) percent by weight of asphalt content. The polymer modified mixes were designed in accordance with Marshall method and the engineering properties of these mixes were determined. The engineering properties of the control and polymer modified mixes (stability, flow, bulk density, percent of voids in total mix, and percent of voids filled with asphalt) were evaluated by conventional test (Marshall test).The test results show that the engineering properties of polymer modified mixes meet the requirements of the S.O.R.B. specification for the asphalt mix used in the construction of surface course. The Marshall stability for modified mixes is higher than of control mixes.
