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Occupational health and safety is an important work discipline that must be included in the working life. Especially, developed countries have been able to place this discipline in working life, while developing countries have still problems. These problems take place both in terms of legislation and practice. The situation is similar to that of developing countries, in Turkey. The construction sector is in line with the development status of a country. The construction sector contributes both directly and indirec...

Sustainable and ecofriendly engineering requires the use of high amounts of recycled materials. Extensive amounts of building materials required for construction of roads facilitates the use of recycled old surfaces from the ecological and economical point of view. Reconstruction and development of new roads requires acquisition and processing of different materials such as: soils, aggregates acquired from unbound layers, concrete and asphalt surfaces, and particularly hazardous surfaces with tar bonding agent. Af...