Synthetisch gebundene offenporige Zwischenschichten zur gezielten Temperierung von Straßen im Winter

Application of porous interlayer for targeted road temperature control

Traffic is an essential component of modern society. The transportation of goods on roads represents by far the biggest part of the traffic capacity; as a result, this must always be maintained through appropriate procedures, also under unfavourable weather conditions in the winter season. One possible way is the temperature control of the surface with a kind of liquid. With this method, the decisive accident causes in winter, such as slipperiness through rain, snow and ice, which result in great economic damage through hindering the transport, can be counteracted. The conception of temperature control on asphalt road is not brand-new. At the moment, the temperature control is typically achieved by installing tubes assembly, in which a kind of liquid flows. However, the tube system has disadvantages in fabrication and the economical provision. Therefore in this research the concept of porous asphalt interlayer was considered, which is similar to the above method flow through with a liquid. Apart from the porous asphalt interlayer, further applications with polyurethane binding interlayer were investigated. Objects of the investigation were the construction practicability of this porous interlayer and the aspects of durability, deformation behavior, water permeability and the thermal effectiveness of this concept.