Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanical and durability properties of steel fibre-reinforced rubberised concrete
https://orcid.org/0000-0003-4620-3842
https://orcid.org/0000-0002-1667-7812
https://orcid.org/0000-0001-6766-2736
Highlights Effect of steel fibres on the mechanical and durability properties of rubberised concrete. Effect of rubber waste aggregates on the compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequency of concrete. 15 concrete mixes containing various steel fibres and rubber aggregates were manufactured and examined. Some correlations are proposed to predict compressive-tensile behaviour, flexural strength-fracture energy performance and flexural-compressive strength relationships of rubberised concrete with various contents of steel fibres.
Abstract This study intends to assess the mechanical and durability behaviour of steel fibres (SF) concrete containing rubber waste. For this purpose, 16 concrete mixes were manufactured to produce test specimens. Rubber waste was used at five volume ratios of 0%, 5%, 10%, 15% and 20%. Moreover, SF were added at three mass ratios (0%, 1% and 2%). Subsequently, the slump, compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage length changes, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequencies of all specimens were measured. One mix with no SF and rubber was used as control. The results showed that shrinkage deformation increased with the rubber waste content; however, and adding SF reduced shrinkage deformation, as expected. Moreover, using 2% SF with 5%, 10%, 15% and 20% rubber tire waste raised the flexural strength of the specimens by 23%, 16%, 7% and 1%, respectively, relative to the control mix. Moreover, rubber waste improved the fracture energy of specimens particularly when both rubber and SF are used.
Mechanical and durability properties of steel fibre-reinforced rubberised concrete
https://orcid.org/0000-0003-4620-3842
https://orcid.org/0000-0002-1667-7812
https://orcid.org/0000-0001-6766-2736
Highlights Effect of steel fibres on the mechanical and durability properties of rubberised concrete. Effect of rubber waste aggregates on the compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequency of concrete. 15 concrete mixes containing various steel fibres and rubber aggregates were manufactured and examined. Some correlations are proposed to predict compressive-tensile behaviour, flexural strength-fracture energy performance and flexural-compressive strength relationships of rubberised concrete with various contents of steel fibres.
Abstract This study intends to assess the mechanical and durability behaviour of steel fibres (SF) concrete containing rubber waste. For this purpose, 16 concrete mixes were manufactured to produce test specimens. Rubber waste was used at five volume ratios of 0%, 5%, 10%, 15% and 20%. Moreover, SF were added at three mass ratios (0%, 1% and 2%). Subsequently, the slump, compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage length changes, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequencies of all specimens were measured. One mix with no SF and rubber was used as control. The results showed that shrinkage deformation increased with the rubber waste content; however, and adding SF reduced shrinkage deformation, as expected. Moreover, using 2% SF with 5%, 10%, 15% and 20% rubber tire waste raised the flexural strength of the specimens by 23%, 16%, 7% and 1%, respectively, relative to the control mix. Moreover, rubber waste improved the fracture energy of specimens particularly when both rubber and SF are used.
Mechanical and durability properties of steel fibre-reinforced rubberised concrete
https://orcid.org/0000-0003-4620-3842
https://orcid.org/0000-0002-1667-7812
https://orcid.org/0000-0001-6766-2736
Highlights Effect of steel fibres on the mechanical and durability properties of rubberised concrete. Effect of rubber waste aggregates on the compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequency of concrete. 15 concrete mixes containing various steel fibres and rubber aggregates were manufactured and examined. Some correlations are proposed to predict compressive-tensile behaviour, flexural strength-fracture energy performance and flexural-compressive strength relationships of rubberised concrete with various contents of steel fibres.
Abstract This study intends to assess the mechanical and durability behaviour of steel fibres (SF) concrete containing rubber waste. For this purpose, 16 concrete mixes were manufactured to produce test specimens. Rubber waste was used at five volume ratios of 0%, 5%, 10%, 15% and 20%. Moreover, SF were added at three mass ratios (0%, 1% and 2%). Subsequently, the slump, compressive and splitting tensile strength, fracture energy, ultrasonic pulse velocity, drying shrinkage length changes, bulk electrical resistivity, dynamic modulus of elasticity and resonance frequencies of all specimens were measured. One mix with no SF and rubber was used as control. The results showed that shrinkage deformation increased with the rubber waste content; however, and adding SF reduced shrinkage deformation, as expected. Moreover, using 2% SF with 5%, 10%, 15% and 20% rubber tire waste raised the flexural strength of the specimens by 23%, 16%, 7% and 1%, respectively, relative to the control mix. Moreover, rubber waste improved the fracture energy of specimens particularly when both rubber and SF are used.
Mechanical and durability properties of steel fibre-reinforced rubberised concrete
Karimipour, Arash (Autor:in) / Ghalehnovi, Mansour (Autor:in) / de Brito, Jorge (Autor:in)
04.05.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A<inf>i</inf> , area of the broken ligament , b , width of the broken ligament , CMOD , crack mouth opening displacement , D , diameter of the specimen , DF , durability factor of the specimen , F , maximum load , f<inf>t</inf> , splitting tensile strength , <italic>g</italic> , gravitational acceleration , <italic>G<inf>F</inf></italic> , fracture energy , h , height of the broken ligament , L , height of the cylinder , M , specified number of cycles after which exposure is to be terminated , M<inf>1</inf> , mass of jig not attached to the testing machine but placed on the specimen until failure , N , number of cycles at which the load reaches the specified minimum value for discontinuing the test , P , load at failure , SF , steel fibres , Durability , Fracture energy , Mechanical properties , Rubber , Steel fibre , Ultrasonic pulse velocity
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