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The article presents a failure of an existing road culvert located in the provincial road embankment that was built on an organic soil. Recommended road designing methods require the involvement of high volume of native soils. The problem occurs when there are only weak soils in the area. The particular group of soils consist of organic soils. Even in the case of the organic soils, there are several different methods for safe settlement of the designed road surface. In current case in order to reduce the settlemen...

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...