Microstructural analysis of the bond mechanism between polyolefin fibers and cement pastes

Tagnit-Hamou, Arezki; Vanhove, Yannick; Petrov, N.

doi:10.1016/j.cemconres.2004.05.046

Cited by 57 publications

(29 citation statements)

References 6 publications

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“…As a result, the fiber-reinforced soil demonstrated a more ductile behavior. Several studies indicated that the fiber sliding resistance was strongly dependent on the fiber surface roughness [40][41][42]. As the fibers were mixed and the samples were compacted, the hard particles (such as sands) of mixtures impacted and abraded the fiber surface, causing plastic deformation and even removal of part of the surface layer.…”

Section: Mechanismmentioning

confidence: 99%

Strength and Deformation Properties of Fiber and Cement Reinforced Heavy Metal-Contaminated Synthetic Soils

Tang

Shi

Zhang

et al. 2019

Advances in Materials Science and Engineering

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Heavy metals are not only hazardous to environment and public health, but they degrade the physicochemical and biological properties of soils increasing difficulty to the redevelopment of contaminated sites. This study proposes a method for reinforcing contaminated soils with fiber and cement. The feasibility of using wheat straw as fiber reinforcement is discussed. The strength of heavy metal-contaminated soil reinforced with wheat straw and cement is investigated through laboratory testing. Twelve groups of soil samples were prepared at three fiber contents (i.e., 0.1%, 0.2%, and 0.3% by weight), three water contents (i.e., 9%, 12%, and 15%), and three cement contents (i.e., 5%, 7.5%, and 10% by weight). Unconfined compression strength (UCS) was tested after 28 days of curing period and various freeze-thaw cycles. The testing results show that the increase in the number of freeze-thaw cycles results in the decrease of UCS. The inclusion of fiber reinforcement within cemented soil causes an increase in the UCS and changes the brittle behavior of cemented soil to a more ductile one. The UCS of the fiber-reinforced soils first increases, then decreases with the increase of water content, and reaches the maximum value at the optimum moisture content.

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Section: Mechanismmentioning

confidence: 99%

Strength and Deformation Properties of Fiber and Cement Reinforced Heavy Metal-Contaminated Synthetic Soils

Tang

Shi

Zhang

et al. 2019

Advances in Materials Science and Engineering

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“…Polyolefin fibers do not significantly enhance the compressive strength or first-crack flexural strength; however, the presence of polyolefin fibers influences the post crack behavior of composites [36]. In addition, impact resistance and flexural toughness increase as the content of polyolefin fiber increases [37].…”

Section: Steel Fibers and Polyolefin Fibersmentioning

confidence: 99%

Abrasion Resistance of Cement-Based Composites

Lin¹,

Cheng²

2012

Abrasion Resistance of Materials

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“…Next, it is difficult to control the mechanical methods and moreover, its effect has a very strong impact on fiber mechanical properties [12,13].…”

Section: Introductionmentioning

confidence: 99%

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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Microstructural analysis of the bond mechanism between polyolefin fibers and cement pastes

Cited by 57 publications

References 6 publications

Strength and Deformation Properties of Fiber and Cement Reinforced Heavy Metal-Contaminated Synthetic Soils

Strength and Deformation Properties of Fiber and Cement Reinforced Heavy Metal-Contaminated Synthetic Soils

Abrasion Resistance of Cement-Based Composites

Pullout Behavior of Oxygen Plasma Treated Polymer Fibers From Cement Matrix

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