2001
DOI: 10.1061/(asce)0899-1561(2001)13:6(399)
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Measuring and Modifying Interface Properties of PVA Fibers in ECC Matrix

Abstract: A single fiber pullout test was used in this study to measure the bond properties of polyvinyl alcohol fibers that are available at various diameters in a mortar matrix. Despite short fiber embedment lengths, the small diameter fibers ruptured during the pullout tests. However, it is shown that even if full fiber pullout is not achieved, it is still possible to determine a chemical debonding energy, G d , and an initial interfacial frictional bond strength, 0. Despite high G d values, the fibers did not ruptur… Show more

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Cited by 409 publications
(182 citation statements)
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“…The scenario; however, may be different in PVA fiber system, where strong slip-hardening behavior is present. Redon and Li (2001) suggested that sliphardening of PVA fiber in a cement matrix was due to an abrasion and jamming effect during sliding of the fiber in the matrix tunnel. Figure 4 shows typical responses of single PVA fiber pulled out from ECC mix 45 (M45) matrix.…”
Section: Two-way Fiber Pullout Considerationmentioning
confidence: 99%
See 2 more Smart Citations
“…The scenario; however, may be different in PVA fiber system, where strong slip-hardening behavior is present. Redon and Li (2001) suggested that sliphardening of PVA fiber in a cement matrix was due to an abrasion and jamming effect during sliding of the fiber in the matrix tunnel. Figure 4 shows typical responses of single PVA fiber pulled out from ECC mix 45 (M45) matrix.…”
Section: Two-way Fiber Pullout Considerationmentioning
confidence: 99%
“…The magnitude of the drop can be used to calibrate the chemical bond G d . During the debonding and pullout stages, the fiber may rupture if the load P exceeds the fiber tensile strength, which is often the case in PVA-ECC system due to strong slip-hardening effect (Redon et al 2001).…”
Section: Modeling Of Single Fiber Behaviormentioning
confidence: 99%
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“…Estas grietas pueden estar localizadas en los bordes entre la fibra y la matriz endurecida, favoreciendo que la fibra se desprenda mientras se transfiere la carga a la grieta principal. Este proceso es deseable, ya que el compuesto exhibirá un comportamiento de endurecimiento por deslizamiento, debido al fisuramiento múltiple de la matriz reforzada (33). Complementariamente, el C-S-H tipo gel generado en sistemas de activación alcalina presenta una alta densidad, lo que permite que éste pueda actuar como taponador de poros, y que dé lugar a un efecto de cicatrización que previene la propagación de la falla (34).…”
Section: Mezcla / M M I I X Xunclassified
“…In 2001, Redon, Li, Wu, Hoshiro, Saito and Ogawa [20] used a single fiber pullout test to measure the bond properties of polyvinyl alcohol fibers that are available at various diameters in a mortar matrix. Despite short fiber embedment lengths, the small diameter fibers ruptured during the pullout tests.…”
Section: Kanda and LImentioning
confidence: 99%