Homomorphic Model Pavement with Sub Base Layer of Foam Concrete

Nowadays, it is necessary to develop new building materials, which are in accordance with the principles of the following provisions of the Roads Act: The design of road is a subject that follows national technical standards, technical regulations and objectively established results of research and development for road infrastructure. The foam concrete, as a type of lightweight concrete, offers advantages such as low bulk density, thermal insulation and disadvantages that will be reduced by future development. The contribution focuses on determination of the flexural strength of test specimens Poroflow 17-5 in combination with various basis weights of the underlying geotextile. Based on the achieved material characteristics, the tensile strength in bending of previously used road construction materials was compared to innovative alternative of foam concrete and the suitability for the base layers of pavement roads was determined. The executed assessment is according to the methodology of assessing the existing asphalt pavements in Slovak Republic. Based on the results obtained from the research, a model was created to analyze the state of stress in structural layers of foam concrete.