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Punching Shear Strength of Concrete Slabs Reinforced with Recycled Steel fibres from Waste Tyres (CROSBI ID 636763)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Bartolac, Marko ; Damjanović, Domagoj ; Krolo, Joško ; Baričević, Ana Punching Shear Strength of Concrete Slabs Reinforced with Recycled Steel fibres from Waste Tyres // Proceedings of the Second International Conference on Concrete Sustainability / Galvez, Jaime C. ; Aguado de Cea, Antonio ; Fernandez-Ordonez, David et al. (ur.). Madrid: International Center for Numerical Methods in Engineering (CIMNE), 2016. str. 811-821

Podaci o odgovornosti

Bartolac, Marko ; Damjanović, Domagoj ; Krolo, Joško ; Baričević, Ana

engleski

Punching Shear Strength of Concrete Slabs Reinforced with Recycled Steel fibres from Waste Tyres

The increasing amount of waste tires around the world and their landfilling present a continuous problem to be solved. Currently, in some countries and unions of countries there are directives which prohibit landfilling and imply that constituent materials of waste tires must be recycled. So, the research community is continuously trying to find different ways to reuse these materials and solve this environmental problem. The main goals of these researches presume engineering, ecological and economical benefits of newly found applications of waste tires rubber, steel fibres and textile fibres. This paper presents the investigation on bearing behaviour of concrete flat slabs reinforced with recycled steel fibres from waste tyres loaded with punching shear force. The ultimate strength of flat slabs is very often governed by their punching shear capacity. This failure mode is rather brittle and can lead to progressive collapses of slab – column connections which can cause collapse of the entire structure. This capacity is traditionally increased by reinforcement in form of stirrups, shear studs or shear bands for example. In addition to these methods of strengthening against punching, industrial steel fibres have proved to be an effective alternative because of their positive effect on shear behaviour and deformation capacity of elements concerned. The main goal of the presented research was to test the ability of recycled steel fibres to perform in the same way as industrial steel fibres in flat slabs loaded in punching. Research included investigation of behaviour of reinforced concrete slabs made of several mixes including plain concrete, mix with industrial steel fibres and mixes with industrial and recycled steel fibres – hybrid fibres. A total of fifteen small-scale flat slabs were tested and results indicate that the use of hybrid fibres can improve the punching shear strength and deformation capacity of concrete slabs. Furthermore, slabs reinforced with hybrid fibres showed better behaviour when compared to slabs reinforced only with industrial steel fibres.

Fibre Reinforced Concrete; Flat Slab; Punching Shear; Recycled Tires; Steel Fibres; Experimental Investigation

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Podaci o prilogu

811-821.

2016.

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objavljeno

978-84-9450777-8-6

Podaci o matičnoj publikaciji

Proceedings of the Second International Conference on Concrete Sustainability

Galvez, Jaime C. ; Aguado de Cea, Antonio ; Fernandez-Ordonez, David ; Sakai, Koji ; Reyes, Encarnacion ; Casati, Maria J. ; Enfedaque, Alejandro ; Alberti, Marcos G. ; de la Fuente, Albert

Madrid: International Center for Numerical Methods in Engineering (CIMNE)

Podaci o skupu

Second International Conference on Concrete Sustainability - ICCS 2016

predavanje

13.06.2016-15.06.2016

Madrid, Španjolska

Povezanost rada

Građevinarstvo, Temeljne tehničke znanosti

Poveznice