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In full-joint concrete roads, as a result of hydropumping under the pavement caused by rain water or drainage water filtered from the joints, cavities are formed after softening in the foundation layer and then the emergence of fine grains to the surface. As a result of the discharges in the foundation layer, cracks that occur in the joint areas during the repeated passage of vehicles can shorten the service life of the concrete pavement. Within the scope of this study, the performance of fiber-added concrete, which has been in demand in the concrete sector in recent years, has been investigated as a solution to these deteriorations in concrete roads. For this purpose, the behavior of plates prepared with fiber-reinforced and plain concrete under cyclic loading was investigated experimentally with dynamic loading, based on the discharge occurring under the pavement. Parameters such as the effect of fibers on cracking in concrete, the amount of load carried in the collapse zone, and displacement performance were investigated. In the light of the results obtained, it has been determined that fiber reinforced concrete is more resistant to cracks in the joint area than plain concrete. [ABSTRACT FROM AUTHOR]

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Due to the rapid and unstudied urbanization, the decreased permeable areas in the cities are become insufficient for discharging the floodwaters. The increased usage of impermeable pavements in the urban roads and footpaths is caused to increase the water flooding incidents. For this reason, more environmentally friendly and sustainable solutions are requiring for discharging the rain and flood water from the urban areas. One of these solutions is the use of pervious concrete pavements more widely. Pervious concrete is an innovative special type of concrete that it can transmit the water to the ground thanks to its open-pore structure. In recent years, the importance of the pervious concrete has been increased due to the increased number of flood events and so, the number of the studies performed about the pervious concretes are increased nowadays. In this study, CEM I 42.5R and CEM IV/B (P) 32.5 N cements are used as binders and three different aggregate particle sizes as 2-3mm and 3-4 mm fine aggregates and 7-8 mm coarse aggregates are used for the production of pervious concretes separately. The influence of the binder types and aggregate particle size on the unit weight, ultrasonic pulse velocity, flexural strength, compressive strength, abrasion resistance and permeability properties of the manufactured pervious concretes are investigated. [ABSTRACT FROM AUTHOR]

Significantly concrete road researches have been investigated since the beginning of 1990s in our country. If pavement type were planned of the concrete in a road project, pavement design would need to little, middle and long term of the service life. Mix rates, subjected to vehicle weighs, chemical corrosions, energy absorbsion, heat factors, region conditions, concrete application type, freeze-thawing and salting in winter should considered during the concrete design. Whether concrete design or maintenances-repairs in the future have important role to prolongation of concrete roads service life. In this study, be planed a concrete road in design and application explained remarkable subjects and subjected to negative factors in the future to specifications preparatories and appliers. [ABSTRACT FROM AUTHOR]