Impact of surface plasma treatment on the performance of PET fiber reinforcement in cementitious composites

Trejbal, Jan; Kopecký, Lubomír; Tesárek, Pavel; Fládr, Josef; Antoš, Jakub; Somr, Michael; Nežerka, Václav

doi:10.1016/j.cemconres.2016.08.018

Cited by 47 publications

(22 citation statements)

References 36 publications

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“…Indirect mechanical methods have been applied -for example bending tests of the composite material [8]. Nevertheless, pullout tests of the single fiber from the matrix provide clear information about the interaction between the two materials.…”

Section: Namementioning

confidence: 99%

“…Therefore, we focused to the second mentioned method. Moreover, the effect of ion bombardment may be examined using SEM morphology investigation and AFM surface scanning [8,15].…”

Section: Namementioning

confidence: 99%

“…The chemical treatment rests in a polymer surface activation, when active polar groups are implemented onto fiber surfaces. As a consequence, the surface is modified from hydrophobic to hydrophilic and thus its reactiveness with polar liquid (water contained in cement paste) is increased [8,14]. Next to that, the polymer surface is roughened via ion bombardment.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, this access is inappropriate due to mixture workability reducing effect [3]. On the other hand, an interfacial bond strength enhancement seems to be the most effective way to improve FRC mechanical performance without undesirable side effects, especially in the field of polymer fiber reinforcement [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Pullout Behavior of Oxygen Plasma Treated Polymer Fibers From Cement Matrix

Trejbal

Horová

Prošek

2017

APP

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Abstract. The aim of this work is to describe bonding properties between surface treated polymer fibers and a cement matrix. In order to increase an interaction between the matrix and fiber surfaces, two fiber types having approx. 0.5 mm in diameter were modified by mean of oxygen plasma treatment.Surface physical changes of treated fibers were examined using SEM morphology observation and interfacial adhesion mechanical tests. The principle of mechanical tests rested on a single fiber pulling out from the matrix (cement paste, CEM I 42.5 R, w/c 0.4). The embedded length was equal to 50 % of original fiber length (50 mm), where the fiber free-end displacement and force resisting to the displacement were monitored.It was pointed out that interfacial shear stress needed to break the bond between the modified fibers and the matrix increased almost by 15-65 % if compared to reference fibers. When the fiber free-end displacement reached to 3.5 mm, the shear strength increased almost twice.

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Section: Namementioning

confidence: 99%

“…Therefore, we focused to the second mentioned method. Moreover, the effect of ion bombardment may be examined using SEM morphology investigation and AFM surface scanning [8,15].…”

Section: Namementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pullout Behavior of Oxygen Plasma Treated Polymer Fibers From Cement Matrix

Trejbal

Horová

Prošek

2017

APP

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“…Chao-Lung Hwang et.al [6] studied the effect of short coconut fibers in concrete for impact behavior. J. Trejbal et.al., [7] presented the impact performance of PET fiber reinforced in cementations composites. A.S.Shakir et.al., [8] studied the lateral impact response of the concrete strengthen with an without Carbon fiber reinforced polymer [CFRP].…”

Section: Introductionmentioning

confidence: 99%

Impact Resistance of Steel Fiber Reinforced Recycle Aggregate Concrete Beams

Ramana¹

2017

IJRASET

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This paper presented the behavior of Recycle aggregate concrete with and without addition of steel fibers under impact loading. For this, experimental investigation 60 cubes and 60 beams were cast and tested. The concrete mix was designed as per ACI code. Total twenty mixes were taken for this study, in the mixes natural aggregate was replaced with the recycle aggregate in the proportion of 0,25,50,75 and 100% and the fiber was varied in the mix as 0, 1, 1.5 and 2% by volume of the cast specimen. The drop weight test was adopted to evaluate the impact performance. Few specimens are also cast without fibers and these results were taken for comparison purpose. The results indicated that the mix with higher content of Recycle aggregate the impact performance was decreased and also noticed that incorporation of steel fibers for the mixes increases the impact energy. Few regression models are developed to estimate the compressive and impact strengths and the models were tested for the experimental data. Keyword: Compressive strength, Impact energy, Natural aggregate concrete (NAC), Recycle aggregate concrete (RAC), Steel fibers damage analysis and regression models. I. INTRODUCTIONThe characteristics of the impact load are a high loading rate and very short period that cause high strain rate in the structure. This implies that the statically determined properties of concrete meanwhile, the mechanical properties of materials were different under impact loading compared with the static loading. Due to the complexity of the dynamic response of concrete structures, the traditional computational methods and design tools may not be much help to understand the behavior of materials and structural elements under impact loading. This deficiency has been paid attention by many researchers in the past few years and investigations have been carried out to understand the behavior of concrete and concrete based composites under impact loading. Mastali et.al.,[9] conducted the experimental work on self compacting concrete to evaluate impact resistance.M. Mastali et.al.,[10] presented the impact resistance of self compacting concrete with recycled carbon fiber reinforced polymer pieces. Md Iftekharul Alam et.al [11] aimed the work to evaluate the performance of concrete subjected to lateral impact. Hossein Mohammadhosseini et.al.,[12] investigated the impact resistance an mechanical properties of concrete reinforced with polypropylene carpet fibers.The recent past literature survey revealed that very little work has been carried out on Recycle Aggregate concrete (RAC) under impact loading with low strength steel fibers. Hence, there is need to conduct experimentation to understand the behavior of RAC beam specimens under impact loading. This article presents details of investigation carried out on RAC beam specimens under impact loading. Natural aggregate concrete (NAC) beam specimens are also cast and tested under

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Application of diffuse coplanar surface barrier plasma discharge to polymeric materials

Janík¹,

Kohutiar

Pajtášová³

et al. 2022

Materialwissenschaft Werkst

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The KPR 200 mm plasma reactor is a device designed for the surface modification of various materials. Such a modification occurs by applying a unique type of plasma – plasma generated on a ceramic dielectric. The ceramic dielectric is a durable system with which it is possible to continuously modify the surfaces of materials with such a plasma. The advantage of applying this unique type of plasma is that the modification of the materials occurs at room temperature and atmosphere. However, it is necessary to monitor and observe certain parameters, for example: the selected power, the exposure time of the surfaces of the modified materials, and the distance of the surface from the ceramic dielectric itself. Therefore, in the present paper, the effect of diffuse coplanar surface barrier discharge (DCSBD) plasma discharge on selected polymeric materials was investigated. Plasma impact assessment was also performed using image analysis, that could provide relevant information in the process of plasma‐chemical modification. Changes in the surfaces of the investigated thin polyvynil chloride material, before and after exposure to plasma discharge, were also observed (changes in contact angle, atomic force microscopy).

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Impact of surface plasma treatment on the performance of PET fiber reinforcement in cementitious composites

Cited by 47 publications

References 36 publications

Pullout Behavior of Oxygen Plasma Treated Polymer Fibers From Cement Matrix

Pullout Behavior of Oxygen Plasma Treated Polymer Fibers From Cement Matrix

Impact Resistance of Steel Fiber Reinforced Recycle Aggregate Concrete Beams

Application of diffuse coplanar surface barrier plasma discharge to polymeric materials

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