نتایج جستجو برای: hybrid graded fiber reinforced high strength concrete

تعداد نتایج: 2564813  

Journal: :Scientia Iranica 2023

The application of fiber-reinforced polymer bars is rapidly rising in concrete structures because corrosion resistance and high tensile strength. By contrast, reinforced with FRP illustrate less ductility brittle failure without warning than conventional steel bars. Hybrid the combination can simultaneously increase strength ductility. This paper aims to estimate effective moment inertia hybrid...

Reza Eslami Farsani Reza Fazaeli Seyed Mohammad Reza Khalili Vahid Daghighi

The creep behavior of basalt fiber reinforced epoxy (BFRE) and glass fiber reinforced epoxy (GFRE) composites was studied through tensile testing at high temperature. To study the effect of reinforcing epoxy, the micro glass powder (MGP) was added at various volume percentage into the epoxy resin in BFRE composites. The initial strain for all the specimens were evaluated and compared with each ...

2015
Wael I. Alnahhal

Abstract—It is a major challenge to build a bridge superstructure that has long-term durability and low maintenance requirements. A solution to this challenge may be to use new materials or to implement new structural systems. Fiber Reinforced Polymer (FRP) composites have continued to play an important role in solving some of persistent problems in infrastructure applications because of its hi...

Journal: :Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] 2009
Nesrin Eronat Umit Candan Murat Türkün

STATEMENT OF THE PROBLEM In stress-bearing cavities, low fracture resistance adversely affects the longevity of the dental resin composite restorations. PURPOSE The aim of this in vitro study was to investigate the effect of glass fiber layering on the flexural strength of microfill and hybrid composites. MATERIALS AND METHODS Flexural test specimens (N = 75) were prepared according to Inte...

2009
A. Franchois L. Taerwe S. Van Damme

A non-destructive measuring technique to determine the fiber content in hardened steel fiber reinforced concrete is presented. The technique is based on an accurate open-ended coaxial probe reflectometry method for measuring the effective permittivity of the fiber reinforced concrete and on a mixing rule from the classical homogenization theory for deriving the fiber content from the measured p...

2013
Khaled S. Ragab

This paper deals with behavior and capacity of punching shear force for flat slabs produced from steel fiber reinforced self compacting concrete (SFRSCC) by application nonlinear finite element method. Nonlinear finite element analysis on nine slab specimens was achieved by using ANSYS software. A general description of the finite element method, theoretical modeling of concrete and reinforceme...

Journal: :Han-gukbangjaehakoenonmunjip 2023

In this study, filler and silica fume were substituted by Liquid crystal display glass powder (LCDGP) nanosilica, respectively, to improve the performance of ultra-high- fiber-reinforced concrete. addition, surface steel fiber was modified with ethylenediaminetetraacetic acid (EDTA) solution interfacial friction between Ultra-high-performanceconcrete (UHPC) matrix. Both LCDGP nanosilica reacted...

2016
Boyan I. Mihaylov

Tests of deep concrete beams with internal fiber-reinforced polymer (FRP) reinforcement have shown that such members can exhibit lower shear strength than members with conventional steel reinforcement. To model this effect, the current paper proposes an approach based on a two-parameter kinematic theory (2PKT) for conventional deep beams. The 2PKT is built on a kinematic model with two degrees ...

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