The National Institute for Occupational Safety and Health (NIOSH) conducted a study of ironworkers to evaluate their risk for developing back and hand injuries from hand-tying reinforcing steel bar and to investigate whether power tying tools can be an effective intervention for the prevention of work-related musculoskeletal disorders. A field investigation of biomechanical loading when using 3...

Bridges with reinforeerneut corrosion problems are now under careful inspection in Taiwan. Costly maintenance programs are underway and raising S"erious safety concem. There are various engineering solutions to salt-induced corrosion. Among them epoxycoated reinforcing bars, commonly referred to as rebar, are frequently used in marine environment and other areas due to its durability, reasonabl...

The high corrosion resistance of stainless steel (SS) reinforcing bars is widely recognized. However, little information is available on how much cathodic current a passive SS rebar assembly could produce to support a local anode as corrosion eventually starts. The ability of SS to perform as a cathode would have a direct impact on the corrosion rate of the anodic region. To address this issue,...

Concrete reinforcing requires coordination among many roles: structural engineer, estimator, detailer, fabricator, installer and others. The methods used to define and represent concrete reinforcement elements and assemblies in building information models is crucial in determining the efficiency of sharing data among BIM platforms and the effectiveness of using the carried data in production pl...

Non-missile intracranial injuries caused by foreign bodies are quite uncommon in civilian practice. Nails, knives, screwdrivers and sewing needles are the most commonly reported agents. The authors report a unique case of an adult male patient who suffered a penetrating craniocerebral injury caused by a falling concrete reinforcing iron (rebar) from the fourth floor of a buildin...

We also targeted emergent fauna for manipulation, choosing elimination over enhancement as a more practical manipulation. Treatments consisted of smoothing 4-m2 plots by hand and covering them with black plastic weighed down by rebar to smother the underlying fauna. Paired controls included smoothing and rebar, but no plastic. After about 3 d, the plastic was removed to monitor the effects of r...

Ultra-high performance concrete (UHPC) is a developing concrete and today is increasing to interest using it in structures due to its advantages such as high-compressive strength, modulus of elasticity, highly durability and low-permeability. Therefore, it is necessary to provide models for prediction of nonlinear behavior of this material. This study is aimed to investigate the tension-stiffen...

In this paper, we present the development and testing of an optical-based sensor for monitoring the corrosion of reinforcement rebar. The testing was carried out using an 80% etched-cladding Fibre Bragg grating sensor to monitor the production of corrosion waste in a localized region of the rebar. Progression of corrosion can be sensed by observing the reflected wavelength shift of the FBG sens...

This paper presents current supply chain configurations for concrete reinforcement steel (rebar) in the Turkish construction industry. The supply chains were assessed by the value stream mapping method and were investigated through visits to firms involved in the supply chain and interviews with practitioners. Five different types of rebar supply chain configurations were identified in the case...