Multiple Cracking and Fiber Bridging Characteristics  of Engineered Cementitious Composites  under Fatigue Flexure

Suthiwarapirak, Peerapong; Matsumoto, Takashi; Kanda, Tetsushi

doi:10.1061/(asce)0899-1561(2004)16:5(433)

Cited by 99 publications

(57 citation statements)

References 8 publications

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“…It was indicated that when a high fatigue stress level was applied, ECCs exhibited a significantly prolonged fatigue life in comparison with other FRC due to their multiple crack characteristics. Their fatigue life tended to be equivalent to or become shorter than that of FRC at lower fatigue stress levels [28]. As mentioned in the first phase, at 55% of fatigue stress level, FA-ECC mixtures with 70% cement replacement exhibited ordinary performance relative to 55% cement replacement for both residual fatigue strength and deflection.…”

Section: Static Tests Following Fatigue Loadingmentioning

confidence: 77%

“…The cyclic fatigue loading was then applied. The fatigue testing technique mentioned above was adopted in accordance with Suthiwarapirak et al [28]. During the fatigue flexural tests, the mid-span deflection evolutions were recorded on data sheet and at the end of the fatigue flexural tests; static flexural tests were conducted on the fatigued ECC specimens to calculate the fatigue residual values for both strength and mid-span deflection.…”

Section: Test Proceduresmentioning

confidence: 99%

“…The reason of ordinary performance of FA-ECC mixtures with 70% cement replacement relative to 55% cement replacement in both fatigue flexural strength and deflection can be attributed to the fixation of fatigue stress level at 55%. In addition, Suthiwarapirak et al [28] indicated that the evolution of mid-span deflection depends on the fatigue stress level. Namely, the mid-span deflection increased to more than twice as much under high fatigue stress levels S = 0.8-0.9 compared to that under low stress levels S = 0.5-0.6.…”

Section: Analysis Of General Fatigue Flexure Performance (Phase I)mentioning

confidence: 99%

“…F_2.2_CS behaved as fiber reinforced concrete (FRC) under fatigue loading. Suthiwarapirak et al [28] mentioned that the evolution of mid-span deflection for FRC was very small. But unlike FRC behavior when static loading was applied after fatigue loading at high fatigue stress levels, the residual energy for both stress and deflection was much larger than both FRC and F_2.2_SS in this study.…”

Section: Static Tests Following Fatigue Loadingmentioning

confidence: 99%

“…This might be attributed to the fact that the fiber/matrix interfacial bond stress degradation results in fiber pullout and fiber fatigue results in fiber rupture [36]. Furthermore, Suthiwarapirak et al [28] indicated that when comparing the fatigue specimens and static specimens, it was found that PVA fibers were severely ruptured under fatigue loading.…”

Section: Number and Width Of Cracksmentioning

confidence: 99%

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Structural Performance of Polymer Fiber Reinforced Engineered Cementitious Composites Subjected to Static and Fatigue Flexural Loading

2015

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This paper presents the influence of silica sand, local crushed sand and different supplementary cementing materials (SCMs) to Portland cement (C) ratio (SCM/C) on the flexural fatigue performance of engineered cementitious composites (ECCs). ECC is a micromechanically-based designed high-performance polymer fiber reinforced concrete with high ductility which exhibits strain-hardening and micro-cracking behavior in tension and flexure. The relative high cost remains an obstacle for wider commercial use of ECC. The replacement of cement by SCMs, and the use of local sand aggregates can lower cost and enhance greenness of the ECC. The main variables of this study were: type and size of aggregates (local crushed or standard silica sand), type of SCMs (fly ash "FA" or slag), SCM/cement ratio of 1.2 or 2.2, three fatigue stress levels and number of fatigue cycles up to 1 million. The study showed that ECC mixtures produced with crushed sand (with high volume of fly ash and slag) exhibited strain hardening behavior (under static loading) with deformation capacities comparable with those made with silica sand. Class F-fly ash combined with crushed sand was the best choice (compared to class CI fly ash and slag) in order to enhance the ECC ductility with slag-ECC mixtures producing lowest deflection capacity. FA-ECC mixtures with silica sand developed more damage under fatigue loading due to higher deflection evolution than FA-ECC mixtures with crushed sand. OPEN ACCESSPolymers 2015, 7 1300

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Section: Static Tests Following Fatigue Loadingmentioning

confidence: 77%

Section: Test Proceduresmentioning

confidence: 99%

Section: Analysis Of General Fatigue Flexure Performance (Phase I)mentioning

confidence: 99%

Section: Static Tests Following Fatigue Loadingmentioning

confidence: 99%

Section: Number and Width Of Cracksmentioning

confidence: 99%

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Structural Performance of Polymer Fiber Reinforced Engineered Cementitious Composites Subjected to Static and Fatigue Flexural Loading

2015

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Research on the flexural performance of reinforced engineered cementitious composite beams

Jin

2021

Structural Concrete

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The bending performance of polypropylene fiber reinforced engineered cementitious composite (PP-ECC) beams was studied. A total of five reinforced concrete (RC) beams were prepared and tested. The test variables include matrix type, longitudinal reinforcement diameter, and longitudinal reinforcement ratio. The study found that ECC is an ideal building material to improve the bending performance of RC beams. For the failure mode, even if the ultimate load is reached, no local cracks are observed in the ECC beam. On the contrary, due to the high ductility of the ECC material, multiple microcracks appear in the tension zone of the beam. From the perspective of bending performance, the use of ECC materials as the matrix of RC beams can not only increase the cracking load, yield load, and ultimate load of RC beams but also increase its ductility and energy absorption capacity. A method for predicting the flexural bearing capacity of ECC beams considering the effect of fiber tensile stress is proposed. The experimental data in this study are compared with the experimental data in the previous literature, and the prediction results of this model and other previous models are obtained. The average ratio of the predicted value of the flexural bearing capacity of the RC beam to the experimental value is 0.979, and the coefficient of variation is 0.016.

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Bending Performance of High Strength Steel Fibre Reinforced Concrete

Lappa¹,

Braam²,

Walraven³

Measuring, Monitoring and Modeling Concrete Properties

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Multiple Cracking and Fiber Bridging Characteristics of Engineered Cementitious Composites under Fatigue Flexure

Cited by 99 publications

References 8 publications

Structural Performance of Polymer Fiber Reinforced Engineered Cementitious Composites Subjected to Static and Fatigue Flexural Loading

Structural Performance of Polymer Fiber Reinforced Engineered Cementitious Composites Subjected to Static and Fatigue Flexural Loading

Research on the flexural performance of reinforced engineered cementitious composite beams

Bending Performance of High Strength Steel Fibre Reinforced Concrete

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