Pavements made of cement concrete, used for road constructions, are
damaged during use. This applies to both the pavements of rural and
forest roads with very low traffic loads, as well as road pavements with
high traffic loads. One of the most effective ways of repairing damaged
concrete cement pavements is through placing an asphalt overlay on a
concrete slab. In order to increase the fatigue life of the asphalt
overlay, asphalt mixtures are modified with fibres. One technological
solution is to use FRP (Fiber Reinforced Polymer), an innovative
material with improved properties.
The aim of this paper is to assess the impact of asphalt overlays
modified with a new type of fibres to strengthen the durability of
weakened cement concrete pavement structures.
On the basis of the conducted analyses, it was shown that the use of an
asphalt layer reinforcement increases fatigue life, for both 15 cm thick
prefabricated slabs and a typical road pavement for average traffic made
of 25 cm doweled and anchored concrete slabs. There was a significant
increase in the fatigue life of the concrete pavement structure as a
result of modifying the overlaid asphalt mixture with FRP fibres.