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In recent years, roads are deteriorated due to increasing traffic volumes, and they require extensive reconstruction which should be environmentally friendly. This can be done by using new additives and waste and recycled materials in road construction. Recently developed warm mix asphalt technology decreases impact on environment. One of the materials which make it possible to lower production temperature of asphalt mixtures is natural zeolite, which is incorporated into asphalt mixtures in the production process. New asphalt mixtures, however, shall comply with standard requirements for the physical and mechanical properties and the conditions for resistance of the layers and therefore the stiffness modulus of these mixtures has to be measured. One of the other environmental aspects is noise pollution in urban areas, which negatively affects and endangers human health. One of the ways how to suppress this negative phenomenon is to develop new materials for road surfaces taking into account their economic, environmental and quality aspects. |
