The role of fiber reinforcement in mitigating shrinkage cracks in concrete

Raoufi, Kambiz; Weiss, Jason

doi:10.1533/9780857095583.2.168

Cited by 5 publications

(6 citation statements)

References 26 publications

(40 reference statements)

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“…When concrete cracks, fibers help to bridge a crack and transferload across the crack. As such, fiber reinforcement will limit the extent of restrained shrinkage cracking by limiting the width of the crack that forms in concrete elements [4,5,6]. Adding the short-fibre reinforcement in low volumes (less than 2-3%) can increase the fracture toughness of concrete that will help to control the width of crack that form due to the volume changes in concrete [4,7].…”

Section: Introductionmentioning

confidence: 99%

“…As such, fiber reinforcement will limit the extent of restrained shrinkage cracking by limiting the width of the crack that forms in concrete elements [4,5,6]. Adding the short-fibre reinforcement in low volumes (less than 2-3%) can increase the fracture toughness of concrete that will help to control the width of crack that form due to the volume changes in concrete [4,7]. large availability, renewability of raw materials,flexibility during processing, low cost, IOP Publishing doi:10.1088/1742-6596/2193/1/012061 2 low density, high specific strength and stiffness.…”

Section: Introductionmentioning

confidence: 99%

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Pineapple leaf fiber (PALF) waste as an alternative fiber in making concrete

Karolina

Tandika

Hasibuan

et al. 2022

J. Phys.: Conf. Ser.

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Indonesia is the 9th largest pineapple producer in the world with a production of 1.39 million tons per year. this makes the pineapple leaf fiber (PALF) waste available abundantly in Indonesia. Palf waste has not been widely used in Indonesia. palf is usually used as fabric for textiles or yarn to be used as clothes and as handicrafts. palf has excellent mechanical properties and is environmentally friendly. in this study palf is used as a material for construction. Adding fiber to the concrete mixture is one way to minimize cracks in the concrete. This study aims to increase the compressive strength, tensile strength of concrete and utilize palf potential as construction material. This study compares the compressive strength and tensile strength of normal concrete against compressive strength and tensile strength of concrete with the addition of pineapple fiber with variations of 0%, 0.5 %, 1%, 1.5% to the weight of cement. The specimen used was a cylinder with a diameter of 15cm and a height of 30cm. The test is carried out on specimens with the age of 28 days. Experimental results show that inclusion of Palf improves the split tensile strength and compressive strenghth of concrete.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pineapple leaf fiber (PALF) waste as an alternative fiber in making concrete

Karolina

Tandika

Hasibuan

et al. 2022

J. Phys.: Conf. Ser.

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“…Adding fibrous material to the concrete mix can control microcracking. Detailed studies on this topic can be found elsewhere [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Utilizing Polypropylene Fiber in Sustainable Structural Concrete Mixtures

Hedjazi

Castillo

2022

CivilEng

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Polypropylene fiber reinforced concrete (PFRC) is becoming more popular for structural purposes due to its durability, electrical resistivity, and mechanical properties. In this study, the influence of polypropylene fiber on the mechanical properties and ultrasonic pulse velocity (UPV) of fiber reinforced concrete (FRC) were determined. Six different fiber volume fractions of polypropylene were considered in the experimental investigation with varying water–cement ratios and curing conditions. Non-destructive testing methods were utilized to determine the UPV of the PFRC. Available equations in literature for predicting the RFC’s compressive strength based on UPV values were selected. However, the computed values did not show good agreement with the compressive strengths obtained from the compression testing machine. It was confirmed that polypropylene fibers alter the propagation of UPV, and as a result, the existing equations do not accurately predict the compressive strength for PFRC. Therefore, a practical equation is proposed to accurately evaluate the compressive strength of PFRC with regard to UPV.

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“…In addition, fibers may act like attachment points on cracks, making difficult their propagation [3].…”

Section: Introductionmentioning

confidence: 99%

“…The effectiveness of fibers to improve the fracture energy depends on the composition of the composite, aspect ratio and nature of the fibers, the nature of the matrix and the physico-chemical interactions between fibers and the matrix among other factors [3,4]. Generally, the relative amount of fibers used in these materials is limited to 1-3% by volume but using this low amount of fibers only an improvement in terms of fracture toughness of concretes and mortars is expected in most of the practical cases.…”

Section: Introductionmentioning

confidence: 99%