Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Glass Fiber Reinforced Concrete jointless slabs-on-grade: A real-scale experimental study
Abstract The paper presents a real-scale experimental study of Glass Fiber Reinforced Concrete (Glass-FRC) jointless slabs-on-grade in outdoor conditions before the application of service loads to evaluate deformations due to shrinkage phenomena and thermal effects. A square slab (20 ×20×0.18 m) and a unidimensional slab (2 ×20×0.18 m) reinforced with 10 kg/m3 of glass macro-fibers were cast and monitored for about six months through external and embedded sensors to detect in-plane and out-plane slab displacements. A double plastic sheet layer was used under the slab to reduce friction with the support while another plastic sheet was applied on the top slab for a curing-time of seven days to reduce risk of cracking. Among the complementary tests, the frictional behavior between the slab and the support was assessed through a large-scale interface shear test. Environmental temperature and relative humidity were continuously measured over the whole period as well as Glass-FRC main mechanical properties. No cracks were detected by visual inspection after approximately six months.
Graphical Abstract Display Omitted
Highlights A heavily instrumented 20×20×0.18 m jointless slab was monitored during more than 6 months. 20 m Long unidimensional slab was monitored during the same period. Useful experimental information about the interfacial friction between slab and subgrade. Evaluation of the influence of glass macro-fibers on shrinkage and thermal phenomena. Prediction with a simplified model adequate for unidimensional slab.
Glass Fiber Reinforced Concrete jointless slabs-on-grade: A real-scale experimental study
Abstract The paper presents a real-scale experimental study of Glass Fiber Reinforced Concrete (Glass-FRC) jointless slabs-on-grade in outdoor conditions before the application of service loads to evaluate deformations due to shrinkage phenomena and thermal effects. A square slab (20 ×20×0.18 m) and a unidimensional slab (2 ×20×0.18 m) reinforced with 10 kg/m3 of glass macro-fibers were cast and monitored for about six months through external and embedded sensors to detect in-plane and out-plane slab displacements. A double plastic sheet layer was used under the slab to reduce friction with the support while another plastic sheet was applied on the top slab for a curing-time of seven days to reduce risk of cracking. Among the complementary tests, the frictional behavior between the slab and the support was assessed through a large-scale interface shear test. Environmental temperature and relative humidity were continuously measured over the whole period as well as Glass-FRC main mechanical properties. No cracks were detected by visual inspection after approximately six months.
Graphical Abstract Display Omitted
Highlights A heavily instrumented 20×20×0.18 m jointless slab was monitored during more than 6 months. 20 m Long unidimensional slab was monitored during the same period. Useful experimental information about the interfacial friction between slab and subgrade. Evaluation of the influence of glass macro-fibers on shrinkage and thermal phenomena. Prediction with a simplified model adequate for unidimensional slab.
Glass Fiber Reinforced Concrete jointless slabs-on-grade: A real-scale experimental study
Mudadu, Antonio (Autor:in) / Tiberti, Giuseppe (Autor:in) / Barragan, Bryan (Autor:in) / Löber, Philipp (Autor:in) / Friedemann, Stephan (Autor:in) / Holschemacher, Klaus (Autor:in) / Plizzari, Giovanni A. (Autor:in)
Engineering Structures ; 304
30.01.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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