Effects of recycled PET fibres on the mechanical properties and seawater curing of Portland cement-based concretes

Fraternali, Fernando; Spadea, Saverio; Berardi, Valentino Paolo

doi:10.1016/j.conbuildmat.2014.03.019

Cited by 104 publications

(46 citation statements)

References 22 publications

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“…We employed the commercial mortar Disbocret Unitech R4, produced by Italian Caparol GmbH & Co, for the sake of comparing the present results with those deriving from the reinforcement of the same kind of mortar with PET stripes [18]. This product is aimed at repairing damaged concrete, and includes PVC micrometric reinforcing fibers (diameter of about 50 lm, length of about 1 mm) aimed at enhancing material thixotropy and shrinkage resistance rather than mechanical properties.…”

Section: R-nylon Fibers and Mortarmentioning

confidence: 95%

“…The decrease of compressive properties has been explained due to the fact that highly deformable plastic fibers might assume the role of voids in the cementitious matrix when compressive forces are applied [9,14,18]. On the other hand, it has been shown that fibers of sufficient stiffness and length can increase the lateral tensile strength of the composite material, leading to delayed compression failure [7,8,10,25].…”

Section: Bending and Compressive Testsmentioning

confidence: 97%

“…The effect of reinforcing plastic fibers in compression is quite often debated in the literature, since different studies report increases [3,7,8,10,15], decreases [2,9,14,18] or no relevant effects [16,21,25] in the compressive strength of fiber-reinforced concretes and mortars, with respect to the unreinforced materials. The decrease of compressive properties has been explained due to the fact that highly deformable plastic fibers might assume the role of voids in the cementitious matrix when compressive forces are applied [9,14,18].…”

Section: Bending and Compressive Testsmentioning

confidence: 98%

“…Several authors have shown that R-PET fibers can conveniently replace virgin plastic fibers in eco-friendly concretes, providing good mechanical and chemical strengths to the final material [12][13][14][15][16][17][18][19][20][21]. More recently, the R-PET reinforcement of cementitious mortars has also received some attention in the literature [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Recycled nylon fibers as cement mortar reinforcement

Spadea

Farina

Carrafiello³

et al. 2015

Construction and Building Materials

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180

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We investigate engineering applications of recycled nylon fibers obtained from waste fishing nets, focusing our attention on the use of recycled nylon fibers as tensile reinforcement of cementitious mortars. We begin by characterizing the tensile behavior of both unconditioned and alkali-cured recycled nylon fibers obtained through manual cutting of waste fishing net filaments, with the aim of assessing the resistance of such materials to chemical attacks. Next, we deal with compression and bending tests on cementitious mortars reinforced with recycled nylon fibers, and establish comparisons with the experimental behavior of the unreinforced material. In our analysis of different weight fractions and aspect ratios of the reinforcing fibers, we observe marked increases in the tensile strength and toughness of the nylon reinforced mortar, as compared with the unreinforced material. The presented results emphasize the high environmental and mechanical potential of recycled nylon fibers for the reinforcement of sustainable construction materials

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Section: R-nylon Fibers and Mortarmentioning

confidence: 95%

Section: Bending and Compressive Testsmentioning

confidence: 97%

Section: Bending and Compressive Testsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Recycled nylon fibers as cement mortar reinforcement

Spadea

Farina

Carrafiello³

et al. 2015

Construction and Building Materials

Self Cite

180

View full text Add to dashboard Cite

show abstract

“…Therefore, it is widely used in packaging, fibers, and other areas [8][9][10][11]. The annual production of PET exceeds 6.7 million tons worldwide, especially in Asian because of the increasing demands in China and India [12].…”

Section: Introductionmentioning

confidence: 99%

Properties of mortar produced with recycled clay brick aggregate and PET

Yue

Sun

2015

Construction and Building Materials

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Effect of carbon fiber on properties of concrete with different W/C and its air‐entraining models

Liu

Xiao

Liu

et al. 2020

Structural Concrete

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The addition of carbon fiber can change plain concrete (PC) to a quasi‐ductile material and improve its flexural properties through sharing the tensile stress transduced from concrete matrix. However, the influence rule and its mechanism of air entrained by carbon fiber on properties of concrete with different water to cement ratios (W/C) is not clear at present. Therefore, this research aims to explore this influence rule and mechanism. Eighteen kinds of concrete samples with W/C of 0.25, 0.3, and 0.45 including 216 specimens in total were studied. Their mechanical and permeability‐related properties were tested, and carbon fiber's air‐entraining models were established. The results show that carbon fiber has effect of improving the flexural strength, compressive strength, and impermeability of concrete with W/C of 0.25, but when W/C increases, the effect of carbon fiber on improving the flexural strength, reducing the compressive strength and impermeability of concrete increases. The calculation results of the air‐entraining models suggest that one possible air‐entraining mechanism of carbon fiber can be summarized as that carbon fiber entrains more air into concrete as W/C increases, and another one can be summarized as that the air entrained by carbon fiber increases the connectivity of the pore structure of concrete.

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Effects of recycled PET fibres on the mechanical properties and seawater curing of Portland cement-based concretes

Cited by 104 publications

References 22 publications

Recycled nylon fibers as cement mortar reinforcement

Recycled nylon fibers as cement mortar reinforcement

Properties of mortar produced with recycled clay brick aggregate and PET

Effect of carbon fiber on properties of concrete with different W/C and its air‐entraining models

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