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    Effect of Carboniferous-Triassic rock dust on the Marshall stabilities of Hot Bituminous Mixtures
    (Politecnico di Torino (DIMEAS), 2007) Çelik O.N.; Ceylan S.; Kaya M.
    Hot Bituminous Mixtures are made by mixing the aggregate and bituminous binder at high convenient temperature. Performance of these mixtures is affected mainly by the aggregate types which constitute the main part of the mixture. Aggregate types, gradation, roughness, surface characteristics have effects on the fatigue and rut depth of the mixture. Deformation has occurred on the surface base under traffic loading. Materials used to build the pavement, construction methods and loading patterns are the main factors effecting pavement performance. There are many other factors effecting the pavement performance like binder type and content, fine and coarse aggregate type and content. When any factors mentioned here is not taken into consideration good enough then the yield will be less. It is possible to investigate the effect of each of these factors on the performance and durability of bituminous mixtures. In this work, the effect of Carboniferous-Triassic rock dust as a filler on the Marshall stabilities of HBM is investigated. Service life can be increased by the modification of mixture. Thus, the maintenance period can be reduced. Literature review has shown that the researches on modification of bituminous binder by chemical compound are more frequent then the modification of mixture. There are some researches about the effect of mineral filler on the properties of HBM like fatigue life and plastic deformation. Therefore, as bituminous researcher indicated new investigations conducted on the effect of mineral filler on the properties of mixture are under consideration.
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    Reasons for occupational accidents in road-building construction sites
    (CRC Press/Balkema, 2015) Bilim A.; Bilim N.; Çelik O.N.
    Safety within road work zones has been an important issue and a major concern of engineers, government agencies, and the road construction industry. Road construction zone safety has been a research focus in many countries for many decades. For decades, the importance of road work zone safety has increased considerably with the continual increase in the number of road work zones present on road for repairs and expansion. Highway and road construction workers are at risk of fatal and serious nonfatal injury when working in the vicinity of passing motorists, construction vehicles, and equipment. For decreasing the occupational accidents, it is important to get to know and take precautions against the parameters causing occupational accidents experienced by workers working at road-building jobs. This study addresses the most frequent accident types in road-building construction sites and their reasons, and offers recommendations regarding the precautions to be taken to prevent such accidents. © 2015 Taylor & Francis Group, London.