Abstract
Contemporary trends in development and new material and technical solutions for road pavement should consider the permanent increase in the growth of traffic as well as aspects of environmental protection and balanced development. Nowadays, attempts are made towards estimation of the appropriate thickness for pavement construction already in the phase of its design. Flexible pavements are preferred over rigid concrete roads because of their certain advantages, such as they can be strengthened and improved in stages with the growth of traffic. Flexible pavements are less expensive in regards to their initial cost and maintenance. Concrete pavements are nowadays becoming more popular. The largest advantage for using rigid pavement is its durability and ability to hold its shape against traffic and difficult environmental conditions. Although concrete pavement is less expensive, it requires less maintenance and has a good design life. The main objective of this study is to present a comparative review on the suitability of pavement depending on various parameters such as material, loading, longer life, cost effectiveness etc.
Highlights
According to the PN-EN 1990 Basis for Construction Design [1], constructions should be designed in such a way that changes occurring in a projected exploitation time, considering the environmental influence and estimated maintenance level do not lower construction usage properties below an intended level
Rigid pavements are constructed with Portland cement concrete (PCC) and should be analysed using the plate theory instead of layer theory, assuming an elastic plate resting on a viscous foundation
The total cost is higher for maintenance and rehabilitation as compared to rigid pavement
Summary
According to the PN-EN 1990 Basis for Construction Design [1], constructions should be designed in such a way that changes occurring in a projected exploitation time, considering the environmental influence and estimated maintenance level do not lower construction usage properties below an intended level. Flexible pavements will transmit wheel load stresses to the lower layers through grain-to-grain transfer through the points of contact in the granular structure. Rigid pavements have sufficient flexural strength to transmit the wheel load stresses to a wider area below. Rigid pavements are constructed with Portland cement concrete (PCC) and should be analysed using the plate theory instead of layer theory, assuming an elastic plate resting on a viscous foundation. The concrete pavement, because of its rigidity and high modulus of elasticity, tends to distribute the applied load over a relatively wide area of soil; the major portion of the structural capacity is supplied by the slab itself [18]
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