ESTIMATION OF INTERFACIAL FRICTION PROPERTY BETWEEN SINGLE FIBER AND NORMAL CONCRETE

Yıl 2020, Cilt: 3 Sayı: 2, 63 - 74, 31.12.2020

Amjad Khabaz

Öz

Due to the challenges of measuring the interfacial properties of Fiber Reinforced Concrete-FRC by direct methods using measurement devices, it is important to find alternative methods such as special micro or macro-experiments in concrete laboratory in addition to theoretical computations. This presentation introduces an alternative method can be used to find the friction factor between the fibers and the concrete in composites of FRC. The principle of this method depends on pull-out test of fibers embedded into concrete matrix; this test might be applied on laboratory samples and computer simulations using different types of fibers such as (steel, glass, carbon, polymer and aramid), where in the creation process of computer simulations; different values of friction coefficient should be applied (as an expected values) versus each case of laboratory samples, therefore stress-strain curves can be obtained and drawn as a result of these pull-out tests, and the value of interfacial-sliding-friction factor can be found through a simple comparison between the sliding part of laboratory stress-dispalcement curve and the computer simulation stress-displacement curves. This technique can be applied to find another interfacial-properties such as poisson’s ratio and bond strength.

Anahtar Kelimeler

Steel Fiber, Glass Fiber, Fiber Reinforced Concrete, Friction, Pull-Out, Sliding Mechanism, Interfacial Property

Teşekkür

I would like to express my deepest appreciation to organizing committee of TICMET19 in the selection of my study which was presented in the conference organized on 10-12 October, 2019 in Gaziantep University

Kaynakça

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