Use of flax fibres to reduce plastic shrinkage cracking in concrete

Boghossian, Emma; Wegner, Leon D.

doi:10.1016/j.cemconcomp.2008.09.003

Cited by 101 publications

(45 citation statements)

References 8 publications

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“…Polypropylene fibre has been shown to be one of the most suitable fibres for cement mortars [21], which could be due to its efficiency as well as to its great costeffectiveness [24]. In the present paper, the behaviour of aerial lime-based mortars modified with polypropylene fibres is reported.…”

Section: Introductionmentioning

confidence: 94%

“…The 0.06% dosage was selected because it is the dosage recommended in cement-based materials by the supplier (FOSROC). The 0.5% dosage is a very common ratio that has been reported in several previous works on the role of polypropylene fibre in cement mortars [15,18,19,22,24]. The polypropylene fibre used was obtained from a supplier as a commercial product: Fibrecrete 600, from FOSROC.…”

Section: Methodsmentioning

confidence: 99%

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Effect of a polypropylene fibre on the behaviour of aerial lime-based mortars

Izaguirre

Lanas²,

Álvarez

2011

Construction and Building Materials

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A polypropylene fibre was added to lime-based mortars in order to check whether they were improved by this admixture. Different properties of lime-based mortars were evaluated: fresh state behaviour through water retention, air content and setting time;hardened state properties such as density, shrinkage, water absorption through capillarity, water vapour permeability, long-term flexural and compressive strengths, pore structure through mercury intrusion porosimetry, and durability assessed by means of freezing-thawing cycles. An improvement in some properties of aerial lime-based mortars -such as permeability, mechanical strengths, reduction in macroscopic cracks or durability in the face of freezing-thawing cycles -was achieved when fibre was added at a low dosage. When a larger amount of additive was used, only the reduction in cracks and the durability of the material were improved.

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Section: Introductionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Effect of a polypropylene fibre on the behaviour of aerial lime-based mortars

Izaguirre

Lanas²,

Álvarez

2011

Construction and Building Materials

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“…At the same time, concrete is not strong enough yet to resist against the tensile stress resulting from the restrained shrinkage. In other words, cracking happens, when the tensile stress r tsh induced by the restrained shrinkage strain e sh exceeds the tensile strength f t of concrete, especially at early-ages even the first hours after the casting [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Shrinkage performance of Crumb Rubber Concrete (CRC) prepared by water-soaking treatment method for rigid pavements

Mohammadi

Khabbaz

2015

Cement and Concrete Composites

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“…It occurs mainly due to loss of water from the surface of concrete 4,5 , that will lead to formation of water menisci that exert contraction forces within the microstructure 4,6 . The common remedy to reduce early age shrinkage is to avoid drying by proper handling of concrete especially in the first few hours after casting 7,8 . The extent of shrinkage of concrete depends on many factors, including the properties of the material, temperature and relative humidity of the environment, the age when concrete is subjected to drying environment, and the size of the structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of steel fibers on plastic shrinkage cracking of normal and high strength concretes

Eren

Marar

2010

Mat. Res.

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Naturally concrete shrinks when it is subjected to a drying environment. If this shrinkage is restrained, tensile stresses develop and concrete may crack. Plastic shrinkage cracks are especially harmful on slabs. One of the methods to reduce the adverse effects of shrinkage cracking of concrete is by reinforcing concrete with short randomly distributed fibers. The main objective of this study was to investigate the effect of fiber volume and aspect ratio of hooked steel fibers on plastic shrinkage cracking behavior together with some other properties of concrete. In this research two different compressive strength levels namely 56 and 73 MPa were studied. Concretes were produced by adding steel fibers of 3 different volumes of 3 different aspect ratios. From this research study, it is observed that steel fibers can significantly reduce plastic shrinkage cracking behavior of concretes. On the other hand, it was observed that these steel fibers can adversely affect some other properties of concrete during fresh and hardened states.

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Use of flax fibres to reduce plastic shrinkage cracking in concrete

Cited by 101 publications

References 8 publications

Effect of a polypropylene fibre on the behaviour of aerial lime-based mortars

Effect of a polypropylene fibre on the behaviour of aerial lime-based mortars

Shrinkage performance of Crumb Rubber Concrete (CRC) prepared by water-soaking treatment method for rigid pavements

Effect of steel fibers on plastic shrinkage cracking of normal and high strength concretes

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