The Mechanical Behavior of Fiber Reinforced PP ECC Beams under Reverse Cyclic Loading

ChiaHwan, Yaw; JianBo, Han

doi:10.1155/2014/159790

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Standard mix of ECC (M45) comprising of cement, fly ash, polyvinyl alcohol (PVA) fiber, silica sand, water and superplasticizer. The use of polypropylene (PP) fiber in ECC is rather limited [9][10][11] despites of its lower cost and environmentally friendly. Compared to fly ash, the use of GGBS as SCM in ECC is scarce.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performances of Green Engineered Cementitious Composites Incorporating Various Types of Sand

Lee

Lian

Zain

et al. 2019

KEM

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This paper evaluates the mechanical performances of green engineered cementitious composites (ECC) by means of compressive strength and flexural behaviour. Green ECC made of cement, ground granulated blast-furnace slag (GGBS), river sand or recycled concrete fine (RCF), polypropylene (PP) fiber, water and superplasticizer (SP) was employed in this study. Compression test result implies that green ECC incorporating either sieved river sand or sieved RCF (below 600 μm) in series G60 and G70 exhibited greater compressive strength compared with green ECC with unsieved river sand. In series G80, compressive strength of green ECC was not affected by RCF content. Flexural stress-mid deflection curves demonstrated that all green ECC specimens performed more ductile compared to normal concrete as they undergone large deformation capacity after the first cracking strength. Both compression and flexural tests suggested that mixture G80SRCF0.4 containing large amount of sieved RCF and least amount of cement is the best green ECC mixture in this study.

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Section: Introductionmentioning

confidence: 99%

Mechanical Performances of Green Engineered Cementitious Composites Incorporating Various Types of Sand

Lee

Lian

Zain

et al. 2019

KEM

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“…In typical ECC mixture, polyvinyl alcohol (PVA) fiber is the most common type of fiber used due to its excellent performance in tensile ductility and multiple cracking [1,6,[12][13] at a lower cost if compared to polyethylene (PE) fiber. The use of polypropylene (PP) fiber in ECC is rather limited [8,[14][15] despites of its lower cost and environmental friendly. In previous study [8], when 3.0% of PP fibers combined with fly ash, cement, sand and water, strain hardening behavior can be observed from the uniaxial test.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Design Mix Proportion on Mechanical Properties of Engineered Cementitious Composites

Lee

Lian

Zain

2018

KEM

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This paper investigates the mechanical properties of engineered cementitious composites (ECC) in terms of compressive strength and flexural behaviour. A new version of ECC made of cement, ground granulated blast-furnace slag (GGBS), local sand, polypropylene (PP) fibers, water and superplasticizer (SP) was employed in this study. Few series of ECC mixtures were designed, cast, and tested in compression and flexural after 28 days of curing. The effect of the fiber content and sand content were studied in different cement-GGBS combination. Compression test results indicated that all ECC mixtures obtained at least 1.8 times compressive strength compared to normal concrete. They also demonstrated more ductile flexural behavior compared to normal concrete from three-point bending test. Increasing fiber content from 1.5% to 2.0% and 2.5% has negative effect on compressive strength but significantly improved modulus of toughness of ECC mixtures. The compressive strength of ECC was reduced when the sand to binder ratio adjusted to 0.4 and 0.6. The flexural behaviour of ECC was slightly improved with the increasing of sand content.

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“…Zhang et al [21,26] found that PP-ECC was effective in replacing transverse reinforcements, providing sufficient shear strength, and dissipating more seismic energy. Yaw and Han [27] concluded that PP-ECC exhibited enhanced strength and energy dissipation capacity when subjected to reverse cyclic loading. The use of PP-ECC jacket at the plastic hinge region of the bridge column was beneficial to bearing greater plastic deformation and dissipating more seismic energy [28].…”

Section: Introductionmentioning

confidence: 99%

Moment-Curvature Behavior of PP-ECC Bridge Piers under Reversed Cyclic Lateral Loading: An Experimental Study

Jia

Lai

et al. 2020

Applied Sciences

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In the study, the moment–curvature relations of bridge piers constructed with polypropylene-fiber-reinforced engineered cementitious composite (PP-ECC) and reinforced concrete (RC) at the potential plastic hinge regions were performed experimentally. The bridge pier specimens were subjected to a combination of constant axial vertical loading and reversed cyclic lateral loading. The test variables include the reinforcement stirrup ratio, axial compression ratio, and height of the PP-ECC regions. Strain gauges were installed at the plastic hinge regions to determine the curvature. PP-ECC and RC bridge piers presented similar shapes of moment–curvature hysteretic curve. Regardless of the concrete type for the pier, the maximum moment and curvature were located near the bottom of the pier, which was consistent with the observed failure patterns. As greater peak moments and larger areas of hysteretic curves were observed for PP-ECC piers, this indicated that the use of PP-ECC at the potential plastic hinge regions significantly improved the deformation capacity and damage tolerance of bridge piers. Regarding the design variables, it was found that the axial loading ratio has a negative effect on enhancing the rotation capacity and plastic deformability, while the height of the PP-ECC portion and the amount of reinforcement stirrups displayed the opposite trend. Moreover, the contribution of stirrups in PP-ECC piers was more significant than that of RC ones.

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The Mechanical Behavior of Fiber Reinforced PP ECC Beams under Reverse Cyclic Loading

Cited by 8 publications

References 3 publications

Mechanical Performances of Green Engineered Cementitious Composites Incorporating Various Types of Sand

Mechanical Performances of Green Engineered Cementitious Composites Incorporating Various Types of Sand

Evaluation of the Design Mix Proportion on Mechanical Properties of Engineered Cementitious Composites

Moment-Curvature Behavior of PP-ECC Bridge Piers under Reversed Cyclic Lateral Loading: An Experimental Study

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