Received: December 28, 2017 Revised: February 23, 2018 Accepted: February 26, 2018 Abstract: Background: For centuries, steel rebar has been the primary reinforcement in concrete despite its major drawbacks, such as its heavy weight, high electrical conductivity, and corrosiveness. Thus, in response to the need for better alternatives, innovative Hybrid Composite (HC) reinforcements have been d...

Abstract The purpose of this study was to solve the chloride corrosion damage problems rebar in reinforced concrete structures under environment. effects 1.0% triethanolamine (abbreviated as TEA), Ca(NO 2 ) , and 0.5% TEA + composite inhibitor) on electrochemical performance modification mechanism mortar specimens were investigated by combining macro experiment microanalysis. results showed tha...

A 42-year-old woman was referred to our institution with sudden onset of ataxia, facial paresis, horizontal gaze palsy, and progressive dysarthria. The patient worsened within a few minutes, with appearance of left hemiparesis. The National Institutes of Health Stroke Scale Score was 13. On computer tomography scan 2 hours after stroke onset, no brain stem lesion or intracranial bleeding was vi...

The inhibition effect of Vernonia amygdalina (bitter leaf) extract on the corrosion behaviour of embedded mild steel rebar in concrete has been investigated by electrochemical potential measurement, pH and gravimetric (weight loss) methods. The results were further analysed using the two-factor ANOVA test. The experiments were performed using bitter leaf extract as a green inhibitor in 3.5% sod...

The relationship between chloride ion concentration and pH on de-passivation of steel rebar embedded in concrete was investigated by a two frequencies impedance measurement using probe electrodes. A saturated calcium hydroxide solution used for the electrolyte as simulated pore solution. pair electrodes, which simulates rebar, immersed prepared an arbitrary ions, performed. Air supplied to simu...

the purpose of this study is to investigate the influence of cross-cultural communication (ccc) on stakeholder management process (smp) in international construction projects from the turkish stakeholders’ perspective. the research is based on a survey of turkish stakeholders (contractors, consulting engineers, insurance brokers, and financial advisors) operating internationally. the useable su...

Josee Laganiere,1* Adrian P. Kells,2* Jeffrey T. Lai,1 Dmitry Guschin,1 David E. Paschon,1 Xiangdong Meng,1 Lauren K. Fong,1 Qi Yu,1 Edward J. Rebar,1 Philip D. Gregory,1 Krystof S. Bankiewicz,2 John Forsayeth,2 and H. Steve Zhang1 1Sangamo BioSciences, Point Richmond Tech Center, Richmond, California 94804, and 2Department of Neurological Surgery, University of California, San Francisco, San F...

Degradation of the cementitious bond between steel rebar and concrete and that between old and new mortar under cyclic shear loading was observed nondestructively by measuring the contact electrical resistance of the joint. Degradation, which caused a decrease in bond strength but no visual damage, was indicated by an abrupt increase in the resistance at a small fraction of the fatigue life. Bo...

Ground-penetrating radar (GPR) detects a tunnel with relatively low-frequency electromagnetic waves, which can result in poorly characterized reinforced steel bar (rebar) hyperbolas and make it challenging to recognize rebar. Thus, the rebar is located by using attenuation reflection coefficients, hyperbolic feature of reconstructed for recognition. Due differences properties other media second...