Yazar "Eyada S.O." seçeneğine göre listele

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    The feasibility of using plastic wastes to improve the properties of natural asphalt
    (Medwell Journals, 2018) Mahmood B.A.; Al-Ani Y.; Mohammed K.A.; Eyada S.O.
    The industrial importance and application of asphalt in different fields such as pavement and roofing, etc. was a certain reason for this study. Many improvement processes have been applied in this research on Hit natural asphalt HNA from Hit city in Iraq to use it for industrial purposes. The HNA was modified by using solid plastic wastes (disposed plastic cans). Recycled wastes are used to achieve two aims: 1 in HNA improvement and 2 ridding the environment from the accumulation of plastic waste that being classified as contaminated materials. Modification process involved the addition of Polyvinyl Chloride (PVC) powder as a recycled waste to improve the properties of HNA . An old PVC pipes were crushed and transformed to powder and finally added to HNA in different ratios of PVC: HNA, (10, 20 and 30). The physical characterization of the new mixture was analyzed using penetration and softening point tests while the chemical properties have been characterized using (UV) and (IR) waves tests to study the changes in the rheological properties. The results revealed the economic importance of using recycled (PVC) powder to improve the properties of HNA and to reduce the adverse effect of these wastes on environment. © Medwell Journals, 2018.
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    A plan for the implementation of mechanistic-empirical pavement design guide in Turkey
    (Universiti Putra Malaysia Press, 2018) Eyada S.O.; Celik O.N.
    Since 1958, most of the world’s countries including Turkey depend on the Empirical Pavement Design Method established by AASHO (which is now known as AASHTO). The limitation of the data used for preparing AASHTO 1993 and Non-Mechanical Based procedure are the main reasons for the needs of new design procedure. The new AASHTO design procedure MEPDG has been established in 2002 and adopted by most of the states in the USA which is based on Mechanistic-Empirical (M-E) principles. The aim of this paper is to prepare a plan for the implementation of MEPDG in TURKEY starting with Third Region. The plan consists of two stages. Stage one is concerned with data collection and preparing of input files. This stage is subdivided into three tasks namley, Climate File, Material File and Traffic File. Stage two is associated with the use of the files prepared in Stage one to conduct studies using MEPDG software. These studies are recommended by AASHTO to evaluate the applicability of the procedure and the recommended enhancements. The studies of this stage are: (a) Sensitivity Analysis of MEPDG to Design Inputs; (b) Comparison of specific Third Region Designs with MEPDG designs; and (c) Calibration of Performance Models for Third Region in Turkey. The outcomes of this paper can be used as guidance for further studies on the implementation of MEPDG in other Regions in Turkey. Also the results of these researches can be assembled to implement the procedure for whole Turkey. © Universiti Putra Malaysia Press.