Performance of AC overlays using geogrids on PCC contraction joints

dc.contributor.authorÇelik, Muhammet
dc.contributor.authorSeferoğlu, Mehmet Tevfik
dc.contributor.authorAkpınar, Muhammet Vefa
dc.date.accessioned2022-03-03T07:13:45Z
dc.date.available2022-03-03T07:13:45Z
dc.date.issued2021-08
dc.description.abstractIt is widely known that vertical displacements and strains occur on the joints and these cause defects on the asphalt concrete (AC) overlays on existing Portland cement concrete (PCC) pavements. Various approaches were introduced to minimize these defects. In this study, the effect of joint support formed using the geogrid material with grout mortar on the vertical displacement of PCC and the strain at the bottom of the AC layer. Produced layers were exposed to 1,186,000 Equivalent Single Axle Load (ESAL) in an APT (Accelerated Pavement Test) facility and the results were monitored. According to the obtained results, the use of AC overlay reduces vertical displacement in the PCC by 75%. When geogrid reinforced AC overlay was used, an additional reduction in displacement by 41.2% was achieved. Geogrid reinforcement reduced strain values formed at the bottom of the AC layer from 29.5% to 92.5%. The use of geogrid at joints instead of increasing the thickness of the AC layer from 50 to 80 mm resulted a more significant reduction in both strain and displacement. Besides, the usage of a geogrid interlayer instead of increasing the thickness of the AC layer also provided a significant cost reduction of 57.9% in overall cost.tr_TR
dc.description.sponsorshipTübitaktr_TR
dc.identifier.otherhttps://doi.org/10.1016/j.geotexmem.2021.02.004
dc.identifier.urihttp://dspace.yalova.edu.tr/handle/1/198
dc.language.isoentr_TR
dc.publisherGeotextiles and Geomembranestr_TR
dc.subjectGeogrid reinforcement Accelerated pavement test AC overlay Contraction joints Strain Vertical displacementtr_TR
dc.titlePerformance of AC overlays using geogrids on PCC contraction jointstr_TR
dc.typeArticletr_TR
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