Determining of the fatigue resistance of a grid-reinforced asphalt concrete by using four point bending beam test

Orešković, Marko; Trifunović, Stefan; Mladenović, Goran; Bohuš, Štěpán

doi:10.31075/pis.64.04.03

Cited by 1 publication

(1 citation statement)

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“…Cracking propagation was recorded by means of a DIC system. Recently, the issue of fatigue life of geogrid-reinforced asphalt pavements was investigated by Orešković et al [ 24 , 25 ] and Sudarsanan [ 26 ]. According to the literature review, geocomposite reinforcement can minimise crack propagation or significantly extend the fatigue life, but it may also reduce the inter-layer bond quality.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Performance of Double-Layered Asphalt Concrete Beams Reinforced with New Type of Geocomposites

et al. 2021

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The reinforcement of asphalt layers with geosynthetics has been used for several decades, but proper evaluation of the influence of these materials on pavement fatigue life is still a challenging task. The presented study investigates a novel approach to the reinforcement of asphalt layers using a new type of geogrid composite, in which square or hexagonal polypropylene stiff monolithic paving grid with integral junctions is bonded to polypropylene non-woven paving fabric. The laboratory fatigue tests were performed on large asphalt concrete beams reinforced with the new type of geocomposite. Unreinforced samples were used as reference. Test results were analysed in several aspects, including the standardised approach based on stiffness reduction, but also using energy dissipation. The effect of reinforcement on pavement fatigue life was also estimated. Based on the obtained final results of fatigue life calculations, it can be concluded that the evaluated geogrid composites have an evident positive effect on pavement performance and have a significant potential to extend the overall pavement life, especially in the case of hexagonal grid.

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Section: Introductionmentioning

confidence: 99%