Mechanical properties of high-performance hybrid-fibre-reinforced cementitious composites (HPHFRCCs)

Kim, Sun-Woo; Yang, Il Seung; Kim, S.-W.; Jeon, E.; Choi, Chil-Sung; Fukuyama, Hiroshi

doi:10.1680/macr.2007.59.4.257

Cited by 48 publications

(21 citation statements)

References 4 publications

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“…The cylinder compressive strength (CS), and splitting-tensile strength (TS) of plain and fibrous mortar (using MS fibers) at 7 and 28 days were determined using cylinders of 100 mm (diameter) X 200 mm (height) [15], [33]. The flexural strength (FS) test was performed using 40 mm X 40 mm X 160 mm prismatic samples [34] at 28 days, in line with the specifications given in ASTM C348 [35].…”

Section: Casting Of Specimensmentioning

confidence: 99%

Experimental and Predictive Mechanical Strength of Fiber Reinforced Cementitious Matrix (Frcm)

Sakthivel¹

2014

geomate

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Fiber Reinforced Cementitious Matrix (FRCM) are sustainable building materials as it uses lesser quantities of natural resources as raw materials for production, when compared to conventional concrete. This study is an attempt to explore the possibility of using crimped mild steel (MS) fibers (12.5 mm length) as reinforcement in cementitious matrix, with sand-cement and water-cement ratio in line with the ACI Codes. From the experimental results, it was found that when the percentage of MS fibers is increased in cement-based mortar from 0.5% to 2.5% of volume of specimens (with 0.5% interval), there is a corresponding increase in the cylinder compressive strength and splitting-tensile strength at 7 and 28 days, and flexural strength at 28 days. There was an increase in compressive strength of 74%, splitting-tensile strength of 38% and flexural strength of 35% at 28 days, when MS fibers of 2.5% was used, when compared to control mortar specimens (with no fibers). Also, the predictive strength models were developed from the experimental data using statistical regression analysis. It was observed that the experimental results of FRCM highly correlate with the predicted values, with minimum prediction error.

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Section: Casting Of Specimensmentioning

confidence: 99%

Experimental and Predictive Mechanical Strength of Fiber Reinforced Cementitious Matrix (Frcm)

Sakthivel¹

2014

geomate

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“…This result also verifies the synergy effect of fibres having different lengths and aspect ratios. Yun et al [16] have stressed that hybrid fibre usages provides higher splitting and flexural tensile strength than the single fibre usage.…”

Section: Resultsmentioning

confidence: 99%

The Strength Properties of Fibre Reinforced Self Compacting Concrete

Bozkurt

Yazıcıoğlu

2017

Acta Phys. Pol. A

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This paper reports results of an experimental study of the strength properties of fibre reinforced self-compacting concrete (FRSCC). For this aim, a control self-compacting concrete and 24 FRSCCs were designed, applying fresh self-compacting concrete criteria tests. In the design of FRSCC, four steel and two polypropylene synthetic fibres of different lengths and aspect ratios were used. These fibres were used alone and in combinations with two and four of these fibres. In this way, not only the effect of single fibre and the synergy effect of hybrid fibres, but also the size and concentration effect of fibres, which had different ratios in total fibre volume, were investigated. In the design process, Portland cement and fly ash were used as the binder and the powder material. The compressive and flexural-tensile strength tests were employed at the age of 3, 7, 28, 56 and 90 curing days, to determine the strength properties of FRSCCs. Moreover, ultrasound pulse velocity test was also performed on all concrete series at the same ages.

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“…The maximum PO-Vf (%) adopted in this study is 2.5%, because the author experienced difficulties while mixing PO-Vf (%) of more than 2.5% in plain cement mortar, and, to further avoid workability related issues, PO-Vf (%) has been restricted to 2.5% for experimental purposes [10][11][12][13]24].…”

Section: Identification Of Test and Control Slab Elementsmentioning

confidence: 99%

“…In order to improve the deflection ductility of ferrocement elements, previous studies [5,[9][10][11][12][13] have recommended that discontinuous fibres of a volume fraction of 0.5 to 2.5% (with a 0.5% interval) be added to the cementitious matrix of SMRCC. A new hybrid cementitious composite using mesh and fibre reinforcement in combined form have been suggested for improving strength and ductility performance by several authors [1], [6].…”

Section: Introductionmentioning

confidence: 99%

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

Sakthivel

2017

Archives of Civil Engineering

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Steel Mesh-Reinforced Cementitious Composites (SMRCC) (traditionally known as ferrocement) have been in existence for few decades, but have some limitations set on element thickness and number of reinforcing mesh layers and the resulting deflection ductility. Therefore, the author has made an attempt to explore whether deflection ductility will improve in mesh-reinforced cementitious composites (25 mm thick) if discontinuous fibres are added to slab elements. were analyzed. From the flexural load-deflection curves it has been observed that HMFRCBC slabs demonstrate higher flexural load-carrying capacity and deflection ductility when compared to SMRCC slabs. This study shows that higher the polyolefin fibre volume fraction (PO-FVf) from 0.5 to 2.5% (with a 0.5% interval) in HMFRCBC slabs, the higher the flexural deflection ductility. The Deflection Ductility Index (DDI) of HMFRCBC (with 5 layers of mesh and PO-FVf=2.5%) is 4.5 times that of SMRCC. This study recommends that HMFRCBC can be used as an innovative construction material due to its higher flexural ductility characteristics.

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Mechanical properties of high-performance hybrid-fibre-reinforced cementitious composites (HPHFRCCs)

Cited by 48 publications

References 4 publications

Experimental and Predictive Mechanical Strength of Fiber Reinforced Cementitious Matrix (Frcm)

Experimental and Predictive Mechanical Strength of Fiber Reinforced Cementitious Matrix (Frcm)

The Strength Properties of Fibre Reinforced Self Compacting Concrete

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

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