Print Email Facebook Twitter Laboratory characterization of the load transfer-crack width relation for innovative short concrete slabs pavements Title Laboratory characterization of the load transfer-crack width relation for innovative short concrete slabs pavements Author Pradena, M.A. (University of Concepcion) Houben, L.J.M. (TU Delft Pavement Engineering) César, Andrés (University of Concepcion) Date 2020 Abstract Aggregate interlock is the dominant load transfer mechanism in non-dowelled Jointed Plain Concrete Pavements, as the innovative short concrete slabs. Although the Load Transfer Efficiency of this pavement innovation is based on that mechanism, the structural design methods do not relate the Load Transfer Efficiency by aggregate interlock with its direct cause, which is the Crack Width under the joints. The objective of the present article is to characterise in the laboratory the Load Transfer Efficiency−Crack Width relation for innovative short slabs Jointed Plain Concrete Pavements. Additionally, as an alternative to large-scale laboratory tests to study the Load Transfer Efficiency, a practical test on a reduced scale is proposed. The results confirmed that short slabs Jointed Plain Concrete Pavements with high-quality aggregates are able to provide adequate Load Transfer Efficiency (above 70%) without dowels bars. Based on the laboratory results, complemented with previous field data, a Load Transfer Efficiency−Crack Width curve is proposed and made available for structural design methods of short slabs Jointed Plain Concrete Pavements. Finally, the laboratory test on a reduced scale is useful to develop specific Load Transfer Efficiency−Crack Width relations using standard equipment available in traditional concrete laboratories. Subject Aggregate interlockConcrete pavementsCrack widthJointsLaboratory testLoad transferPavement designShort slabs To reference this document use: http://resolver.tudelft.nl/uuid:64be2dd4-0eae-4220-b4a4-e837940d3527 DOI https://doi.org/10.7250/bjrbe.2020-15.469 ISSN 1822-427X Source Baltic Journal of Road and Bridge Engineering, 15 (1), 232-250 Part of collection Institutional Repository Document type journal article Rights © 2020 M.A. Pradena, L.J.M. Houben, Andrés César Files PDF 3487_12312_1_SM.pdf 2.96 MB Close viewer /islandora/object/uuid:64be2dd4-0eae-4220-b4a4-e837940d3527/datastream/OBJ/view