Use of Fiber-Reinforced Cements in Masonry Construction and Structural Rehabilitation

Erdogmus, Ece

doi:10.3390/fib3010041

Cited by 39 publications

(18 citation statements)

References 11 publications

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“…The nets have been also used in civil engineering field as a recycled fiber in order to reinforce or strengthen concrete, mortar and soil [5,6]. Even during the past three decades, the use of synthetic fiber, such as polyvinyl alcohol (PVA) fiber and polypropylene fiber has been paid attention, and it is successful in significantly improving mechanical properties, such as flexural strength, fracture toughness, and impact resistance, of fiber reinforced mortar and concrete [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. However, using of those fibers surely leads to higher energy consumption and emission for production process [6].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of recycled nylon fiber from waste fishing net with respect to fiber reinforced mortar

Orasutthikul

Unno

Yokota

2017

Construction and Building Materials

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h i g h l i g h t sThe effects of recycled nylon fiber mixed in mortar on flexural behavior are focused. Improvement of flexural strength and toughness are observed by using recycled nylon fiber. Post peak behavior is directly affected by bond strength between fiber and matrix. a b s t r a c tThis paper discusses the utilization of recycle waste fishing nets in fiber reinforced mortar. Experimental test results compared the mechanical properties of such mortar made with recycled nylon fiber to those of such mortar made with recycled PET and PVA (polyvinyl alcohol) short fibers. The recycled nylon (RNylon) fibers were obtained by manually cutting of waste fishing nets to the lengths of 20 mm, 30 mm and 40 mm. Two types of R-Nylon fibers were investigated that are straight and knotted types. The addition of straight R-Nylon fiber improved the flexural strength up to 41% in comparison with that of the knotted R-Nylon, recycled PET, and PVA fibers. The compressive strength of the mortar with R-Nylon fiber decreased with increase in fiber fraction and length. The post peak load, toughness and residual strength depended on the properties of fiber such as Young's modulus, tensile strength, and geometry as well as the bond strength between fiber and matrix.

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Section: Introductionmentioning

confidence: 99%

Effectiveness of recycled nylon fiber from waste fishing net with respect to fiber reinforced mortar

Orasutthikul

Unno

Yokota

2017

Construction and Building Materials

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“…The plain concrete beams exhibit a very brittle behavior when subjected to fl exural loading whereas the polypropylene fi ber reinforced concrete beams show ductile failure. The research work carried out by Ece Erdogmous [13], concluded with recommendations that composition and strength of the initial cementations matrix as shown in both the masonry and the concrete structure application studies, the lower strength matrices may benefi t more from the fi ber addition compared to stronger base matrices. Flexural strength, toughness, energy absorption, and ductility of the FRM themselves are typically higher compared to the control mixture, even with lower fi ber percentages.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of polypropylene fibers mixed cement-sand mortar

Bilal¹,

Shahzada²,

Naqash³

2019

J Appl Eng Science

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The polypropylene fi bers are mostly used in concrete nevertheless much focus is not made on its use in mortar. Therefore, this research was carried out to determine the benefi cial use of polypropylene fi bers in cement-sand mortar. By determining the mechanical properties of polypropylene fi bers Mixed (PPFM) Cement-Sand Mortar we can assess it benefi cial use. The PPFM Cement-Sand Mortar (Type-N) contains Polypropylene Fibers randomly mixed in cement-sand mortar. This idea is based on the previous research carried out on Polypropylene Fibers Reinforced Concrete. The fi bers used were microfi lament fi bers having length of 12 mm, diameter of 18 micron and specifi c gravity of 0.91. The fi bers were mixed in mortar in different proportions (1%, 2% and 3% by the volume fraction) in cement-sand mortar of 1:6 (by volume fraction) and its mechanical properties were studied with control samples (Mortar with no fi bers). A total of 08 tests were performed: 4 tests were performed in fresh state of mortar, 4 were performed in hardened state of mortar. In fresh state, 12 samples for each test were casted and the mortar showed considerable decrease in workability, bulk density and setting time whereas the air content increased considerably with increasing PPF fraction. In hardened state, 48 samples were casted for each test and the mortar samples showed considerable decrease in compressive strength, tensile strength and fl exural strength with increasing PPF fraction, however, the ductility increased considerably. Based on the results, it was concluded that the use of polypropylene fi bers does increase the ductility of the mortar, however, the strength does decrease, and therefore, its use may be limited to less that 1% so that ductility is achieved, and strength of mortar is not affected much. In view of above, this work can be extended for calculating its optimum use in cement sand mortar.

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“…Therefore, application of surface plastering provides an additional 8% strength for masonry, compared with those of plain masonry. According to Erdogmus [20], the inclusion of fiber in the mortar increases the air content of the mix and due to this, the compressive strength of the mortar reduced. Here also, it is observed that the addition of coconut coir in the mix slightly reduced the compressive strength of masonry prisms.…”

Section: Pre-crack Behaviormentioning

confidence: 99%

Mechanical behavior of masonry strengthened with coir fiber reinforced hydraulic cement mortar as surface plaster

Rupasinghe¹,

Sathiparan²

2019

JSEAM

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Among the world population, a large proportion across the world still lives in masonry structures. The main problem in unreinforced masonry structures is its weakness against dynamic loads. This paper presents the proposal of the new retrofitting method using natural fiber added mortar as the surface plaster for masonry structures. Thus, the present study focuses on the experimental evaluation of a masonry prism with natural fiber reinforced mortar. The main reasons for the use of coconut coir as a natural fiber are richly available in locally and are fairly cheap. In this paper, the effects of coconut coir reinforced mortar mix, including different fiber content on compressive, shear and flexural bending behavior of masonry prisms is investigated through a comprehensive experimental study. Although this technique shows an average performance, due to the facts of low cost, local availability and relative simplicity of technique, this method may potentially be able to use to prevent the brittle collapse of unreinforced masonry structures under moderate seismic loading.

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Use of Fiber-Reinforced Cements in Masonry Construction and Structural Rehabilitation

Cited by 39 publications

References 11 publications

Effectiveness of recycled nylon fiber from waste fishing net with respect to fiber reinforced mortar

Effectiveness of recycled nylon fiber from waste fishing net with respect to fiber reinforced mortar

Mechanical properties of polypropylene fibers mixed cement-sand mortar

Mechanical behavior of masonry strengthened with coir fiber reinforced hydraulic cement mortar as surface plaster

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