Fracture of Concrete Containing Crumb Rubber

Grinys, Audrius; Sivilevičius, Henrikas; Pupeikis, Darius; Ivanauskas, Ernestas

doi:10.3846/13923730.2013.782335

Cited by 47 publications

(16 citation statements)

References 34 publications

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“…Normally the conventional concrete is strong in compression but less resistance against tension, toughness and fatigue. The resistance against these properties can be enhanced by the inclusion of high strain capacity materials in concrete and is a most appropriate option . Under different kinds of loading the fibers are more influential in enriching the toughness and ductility of the concrete.…”

Section: Introductionmentioning

confidence: 99%

Influence of different types of fiber on the properties of recycled aggregate concrete

Meesala

2019

Structural Concrete

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Utilization of recycled aggregate from the construction and demolition waste as a partial substitution of natural aggregate in the concrete has been increased in the recent times in order to minimize the consumption of natural resources and the harmful effects to the environment. The present investigation mainly focuses on the influence of different fibers on mechanical and other properties of concrete made with 50% of recycled coarse aggregate (RCA) as well as concrete with 100% natural aggregate. Three types of fibers such as Woolen fibers (WF), Glass fibers (GF), and Steel fibers (SF) were used in both normal and recycled aggregate concrete mixes. The workability, compressive strength, split tensile and flexural strengths, modulus of elasticity, density, water absorption and volume of voids, and ultrasonic pulse velocity (UPV) properties of all the mixes were investigated. From the experimental findings it was observed that the fibers significantly improve the mechanical properties of both normal and recycled aggregate concretes. Further among the WF, GF, and SF, SFs had shown more positive impact on the properties of concrete. K E Y W O R D S compressive strength, flexural strength, glass fibers, recycled aggregate concrete, steel fibers, ultrasonic pulse velocity (UPV), woolen fibers

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Section: Introductionmentioning

confidence: 99%

Influence of different types of fiber on the properties of recycled aggregate concrete

Meesala

2019

Structural Concrete

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“…By examining mixture RC (the controlled one) to RCB3 (15Cr), the compressive strength for cubes dropped from 8.2 % to 16.5% at crumb rubber percentage, which varies from 10% to 15% by replacement of sand, respectively. Several studies have previously reported the decline in compressive strength subjected to rubber contents by revealing the negative effect [6,14,17,18]. The nature of the crumb hydrophobic allowed to increase the voids by air in the concrete mixtures and lead to concentrate the stress across micro cracks that caused by rubber thereby reduction in hardness strength [19].…”

Section: Flexure Test Setup Instrumentation and Loading Proceduresmentioning

confidence: 99%

A Comparative Study on the Flexural Behaviour of Rubberized and Hybrid Rubberized Reinforced Concrete Beams

2019

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This paper aims to investigate the flexural behaviour of the rubberized and hybrid rubberized reinforced concrete beams. A total of fourteen beams, 150×200 mm in cross-section with 1000 mm in length, were subject to a laboratory test over an effective span of 900 mm. The sand river aggregate was replaced by 10%, 12.5%, and 15% of crumb rubber (volume). The hybrid structure contained two double layers: 1) rubberized reinforcement concrete at the top layer of the beam and 2) reinforcement concrete at the bottom layer of the concrete beam. The static responses by the flexural test of all the beams were evaluated in terms of their fresh properties, failure patterns, total energy, flexural strength, stiffness, and ultimate deflection, modulus of rupture, strain capacity, and ductility index. The results showed that there were improvements when the hybrid beams were used in most cases such as failure pattern, ultimate load, stiffness, modulus of rupture, and stress. The rubberized concrete beams showed improvements in the strain capacity as illustrated in strain gauges and stress-strain curves, toughness, ultimate deflection, and ductility index. The findings of the study revealed an improved performance with the use of the hybrid beams. This has resulted in the implementation of innovative civil engineering applications in the engineering sustainable structures.

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“…Using the same approach and greater rubber volumes, Khaloo et al [12] fabricated rubberized concrete test specimens at percentages of 12.5%, 25%, 37.5%, and 50% and subjected them to uniaxial compression tests with controlled deformation, which exhibited significant reductions in the strength and elasticity modulus and an important reduction in the concrete brittle behaviour when the rubber content was increased. These researchers and others [13][14][15] studied the energy dissipation in concrete by means of the three points' beam geometry. In the present research work the Disk-Shaped Compact Tension test normed by the ASTM D7313-13 standard [16] is adopted to evaluate the fracture energy of concrete mixes.…”

Section: Experimental Studiesmentioning

confidence: 99%

Influence of Crumb-Rubber in the Mechanical Response of Modified Portland Cement Concrete

Velasco

Ayala

2017

Advances in Civil Engineering

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The influence of crumb-rubber on the mechanical properties of Portland cement concrete (PCC) is studied by experimental tests and numerical simulations. The main hypothesis of the study is that replacing part of the stone aggregate with crumb-rubber in the mix modifies the energy dissipation during the cracking process and affects the concrete behaviour under monotonically increasing loads. The experimental research program characterizes the mechanical properties of PCC for three different types of concrete with a variable content of crumb-rubber. The experimental results showed that fracture energy and other properties are directly related to the rubber fineness used in the mixture. The material properties derived for these laboratory tests are used to study, by numerical models, its response through its damage evolution. The numerical model used to simulate the damage evolution of the concrete is the Embedded Discontinuity Method (EDM). One characteristic of the EDM is that it does not need to modify the mesh topology to propagate the damage through the continuum solid. For this study, the Disk-Shaped Compact Tension specimen geometry, normed by the D7313-13 of the ASTM, is used. Results showed that the numerical methods provide good approximation of the experimental curve in the elastic and softening branches.

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Fracture of Concrete Containing Crumb Rubber

Cited by 47 publications

References 34 publications

Influence of different types of fiber on the properties of recycled aggregate concrete

Influence of different types of fiber on the properties of recycled aggregate concrete

A Comparative Study on the Flexural Behaviour of Rubberized and Hybrid Rubberized Reinforced Concrete Beams

Influence of Crumb-Rubber in the Mechanical Response of Modified Portland Cement Concrete

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