Mechanical properties of steel fiber-reinforced, high-strength, lightweight concrete

Gao, Jianming; Sun, Wei; Morino, Keiji

doi:10.1016/s0958-9465(97)00023-1

Cited by 332 publications

(159 citation statements)

References 6 publications

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“…Hence, the coefficients of the predictive equation obtained based on the regression analysis of the test data of the present study partially characterizes the type of the fiber used. In earlier models ͑Taerwe 1992; Agrawal et al 1996;Gao et al 1997;Padmarajaiah 1999;Song and Hwang 2004͒ based on the law of mixtures, contribution of matrix represented by first and fibers represented by third term of Eq. ͑1͒ only was considered and the fiber matrix interaction term represented by the second term of Eq.…”

Section: Strength Prediction Modelsmentioning

confidence: 99%

“…In earlier studies ͑Ghosh et al 1989; Agrawal et al 1996;Gao et al 1997;Padmarajaiah 1999;Song and Hwang 2004͒, the improvement in mechanical properties in concrete due to the addition of steel fibers were expressed as a function of fiberreinforcing index ͑RI= V f L f / f ͒ and concrete strength. Hannant ͑1978͒ has discussed the role played by both the fiber content ͑V f ͒ and the fiber aspect ratio ͑L f / f ͒ in the workability, and strength enhancement of steel fiber-reinforced concrete ͑SFRC͒.…”

Section: Introductionmentioning

confidence: 99%

“…Most of these models ͑Ghosh et al. 1989;Agrawal et al 1996;Gao et al 1997;Padmarajaiah 1999͒ were developed based on the test data of a single grade of concrete. The mechanical strength properties SFRC are closely related to the fiber parameters, matrix strength, and their interaction.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties of Steel Fiber-Reinforced Concrete

Thomas

Ramaswamy

2007

J. Mater. Civ. Eng.

403

152

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This paper presents the results from an experimental program and an analytical assessment of the influence of addition of fibers on mechanical properties of concrete. Models derived based on the regression analysis of 60 test data for various mechanical properties of steel fiber-reinforced concrete have been presented. The various strength properties studied are cube and cylinder compressive strength, split tensile strength, modulus of rupture and postcracking performance, modulus of elasticity, Poisson's ratio, and strain corresponding to peak compressive stress. The variables considered are grade of concrete, namely, normal strength ͑35 MPa͒, moderately high strength ͑65 MPa͒, and high-strength concrete ͑85 MPa͒, and the volume fraction of the fiber ͑V f = 0.0, 0.5, 1.0, and 1.5%͒. The strength of steel fiber-reinforced concrete predicted using the proposed models have been compared with the test data from the present study and with various other test data reported in the literature. The proposed model predicted the test data quite accurately. The study indicates that the fiber matrix interaction contributes significantly to enhancement of mechanical properties caused by the introduction of fibers, which is at variance with both existing models and formulations based on the law of mixtures.

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Section: Strength Prediction Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties of Steel Fiber-Reinforced Concrete

Thomas

Ramaswamy

2007

J. Mater. Civ. Eng.

403

152

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“…al. [4] has investigated the properties of fiber reinforced lightweight concrete. Kayali et al [5] reported that polypropylene fiber addition of 0.56 % by volume of the lightweight aggregate concrete caused a 90 % increase in indirect tensile strength and 20 % increase in the modulus of rupture.…”

Section: Introductionmentioning

confidence: 99%

Compressive and Flexural Strength of Foamed Concrete Containing Polyolefin Fibers

Ibrahim

Jamaluddin

Irwan

et al. 2014

AMR

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Foam concrete is a lightweight concrete which is produced relatively inexpensively. However, due to its low strength and brittleness the application in building construction is rather limited. A study has been undertaken to investigate the effects of polyolefin fibers at a relatively low volume fraction (0 %, 0.2 %, 0.4 % and 0.6 %) on the compressive and flexural properties of foamed concrete. The foamed concrete was designed to achieve a target strength of 8-10 MPa with a density of 1600 kg/m3 at the age of 28 days. For each mixture, nine lOOxlOOxlOO mm cubes and three 100x100x500 mm beam were prepared. The compressive test was performed on cubes and three points loading flexural test on the beams was carried out in accordance to MS 26:Part 2: 1991. Test results showed that polyolefin fibers only slightly improved the compressive strength and flexural strength of foamed concrete by 4.3% and 9.3% respectively.

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“…LWAC has been known offers various advantages due to its lower density [1], higher ratio of strength/weight [2], less conductivity thermal [3,4], better durability properties [5,6], fire resistance [7] and etc. The use of lightweight concrete reduce the size of columns, beams, wall and foundation which as well reducing the dead load and minimizing the damages of structures due to earthquake [8].…”

Section: Introductionmentioning

confidence: 99%

The effect of polymer coated pumice to the stiffness and flexural strength of reinforce concrete beam

2017

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Abstract. Pumice has been proven as substitution material aggregate in lightweight aggregate concrete (LWAC). However due to its characteristic, pumice has the disadvantages of its excessive water absorption during preparation of concrete mixture which may reduce concrete strength. Therefore in order to eliminate this additional water absorption, this study investigate the effect of coated pumice in concrete mixture to the beam flexural strength and stiffness. This study performed flexural strength test on three types of sample: 1) normal reinforce concrete beam, 2) reinforce concrete beam with uncoated pumice and 3) reinforce concrete beam with coated pumice. The result showed that the lightest weight concrete occurred on the coated pumice specimen, with the reduction of water absorption was 4% compared to the uncoated pumice specimen. The stiffness of the reinforce beam with coated pumice was lower compared to the uncoated ones, this was due to the reduction of adhesion action between cement and aggregates. However, the use of coated pumice increased the flexural strength compare to the uncoated ones with 2.58%.

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Mechanical properties of steel fiber-reinforced, high-strength, lightweight concrete

Cited by 332 publications

References 6 publications

Mechanical Properties of Steel Fiber-Reinforced Concrete

Mechanical Properties of Steel Fiber-Reinforced Concrete

Compressive and Flexural Strength of Foamed Concrete Containing Polyolefin Fibers

The effect of polymer coated pumice to the stiffness and flexural strength of reinforce concrete beam

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