...M.J. Dugarte; A.A. Sagüés The polarization behavior of commercial galvanic point anodes for corrosion protection of reinforcing steel in patch repairs applications was investigated. Concrete specimens were used to analyze the polarization history of the embedded sacrificial anodes under...

... 13 10 2013 © 2014 NACE International 2014 anodes cathodic prevention concrete corrosion reinforcing steel zinc As indicated in the Part 1 companion paper, 1 sacrificial point anodes are commercially available to be cast in patch repairs of concrete to prevent...

... reinforcing steel Admixed corrosion inhibitors are generally recognized as an option for increasing time-to-corrosion initiation and thereby extending service life of reinforced concrete exposed to chlorides. A companion paper 1 used an equation whereby the cumulative distribution function (CDF...

.... The previously reported limiting [Cl⁻] for which various dosages of the corrosion inhibitor calcium nitrite (CN) are effective in maintaining reinforcing steel passivity was superimposed upon the CDF. From probability distributions of, first, [Cl⁻] and, second, Cl⁻ threshold...

...A.N. Scott; M.D.A. Thomas The resistance to chloride-induced corrosion of a 9% chromium-ribbed reinforcing steel is compared to plain carbon steel-ribbed and round bar. The results from this investigation show the considerable variability in chloride threshold concentration and corrosion rate...

... cement alkalinity chloride threshold concentration coarse aggregate concrete reinforcing steel Electrolyte composition is invariably an important factor affecting any aqueous corrosion process, including that for steel embedded in concrete. The most prevalent corrosion activator in concrete...

... are compared to the ones reported on ordinary Portland cement (OPC) mortars investigated under similar conditions. ‡ Corresponding author. E-mail: [email protected] . 11 2003 02 2005 NACE International 2005 calcium aluminate cement forced corrosion Portland reinforcing steel...

... collected from various evaluation methods with careful consideration for the effects of environmental conditions. ‡ Corresponding author 12 2001 01 2003 NACE International 2003 concrete bridges current density electrical resistivity half-cell potential reinforcing steel...

..., and the external solution was filled up in the panel. A direct current was fed between the reinforcing steel in concrete and a titanium-mesh immersed in the external solution. Visual observation and electrochemical investigations were performed to assess the effectiveness of this method. The results indicate...

... life. Utility of the method is demonstrated using previously reported data for laboratory specimens and a field structure. 07 2001 01 2002 NACE International 2002 cathodic protection chloride concrete current capacity galvanic anode reinforcing steel slope parameter...

... reinforcing steel stainless steel zero resistance ammeter Corrosion of reinforcing steel embedded in concrete structures has been shown to be essentially galvanic. ^1-5 Micro- and macrogalvanic cells exist, and six different types of corrosion cells have been proposed as likely to play...

... environments anodes bridges cathodic protection chloride current potential reinforced concrete reinforcing steel zinc Corrosion of steel in reinforced concrete is a major concern because of the expense incurred in repair and replacement of affected structures. ¹ One method used...

... for experiments with plain steel and galvanized rebar in concrete. 12 1996 05 1997 1 2010 NACE International 1998 concrete constant phase angle element cyclic polarization impedance modeling polarization resistance solution resistance rebar reinforcing steel Measurement...

... periods (5 y to 10 y). 11 1995 04 1996 1 2010 NACE International 1997 calcium hydroxide chloride concrete current efficiency durability imposed current mortar nitrite reinforcing steel Corrosion of steel embedded in concrete structures has become a major...

...A. A. Sagüés; R. G. Powers The use of sacrificial anodes consisting of sprayed zinc on the surface of concrete containing corroding reinforcing steel bars was examined in field tests and laboratory experiments. The anodes were sprayed directly onto the external surface of spalled regions of marine...

... to small lengths of reinforcing steel. The anode-steel couples were placed in simulated concrete environments consisting of sealed containers filled with silica sand treated with a mixed alkali solution containing 6 kg/m³ (10 lbs/yd³) of chloride ion (Cl^–) by volume of sand...

... was exposed to corrosive substances such as moisture and road salt. 02 1995 07 1995 1 2010 NACE International 1995 anode bridges chloride concrete cracking iron permeation rebar reinforcing steel zinc Corrosion of reinforced concrete on bridge decks, support columns...

...J.A. González; M. Benito; S. Feliu; P. Rodríguez; C. Andrade The ability of various electrochemical techniques to differentiate between areas of reinforcing steel (rebar) with high and low corrosion activity and to define the boundary between such areas was studied. These techniques are based...

... reinforcing steel The determination of i_corr (the corrosion rate in terms of the corrosion current density) in concrete-embedded steel reinforcement (rebar) can be regarded as a special instance of electrochemical measurement since the electrolyte is a solid mass. It usually entails...

.... Presented as paper no. 341 at CORROSION/93, March 1993, New Orleans, LA. 04 1993 11 1993 NACE International 1994 bridge decks calcium nitrite chloride diffusion concrete inhibitors lifetime prediction marine piles parking structures profiles silica fume reinforcing steel...