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Numerical Study on the Effect of Cracking on Surface Resistivity of Plain and Reinforced Concrete Elements
Publisher: American Society of Civil Engineers
Abstract: The effect of discrete cracks on the Wenner probe measurements for surface resistivity of plain and reinforced concrete elements is investigated. A numerical modeling approach is utilized to study the effect of a wide range ...
Effectiveness of <i>E. coli</i> Biofilm on Mortar to Inhibit Biodegradation by Biogenic Acidification
Publisher: American Society of Civil Engineers
Abstract: Effectiveness of E. coli DH5α biofilm growth on mortar surfaces to inhibit microbiologically-influenced deterioration is investigated. Unlike traditional chemical deterioration processes through direct acid addition, ...
Quantitative Interpretation of Half-Cell Potential Measurements in Concrete Structures
Publisher: American Society of Civil Engineers
Abstract: The interpretation of half-cell potential measurements in reinforced concrete structures can be a major challenge for civil engineers. The main reason for this is that half-cell potential mapping provides information to ...
Mitigation of Calcium Oxychloride Formation in Cement Pastes Using Undensified Silica Fume
Publisher: American Society of Civil Engineers
Abstract: Certain chloride-based deicing salts can react with calcium hydroxide in cement paste to form calcium oxychloride. Calcium oxychloride formation results in expansive pressures that damage concrete. This study examines the ...
Relating the Formation Factor and Chloride Binding Parameters to the Apparent Chloride Diffusion Coefficient of Concrete
Publisher: American Society of Civil Engineers
Abstract: ASTM C1556-11a [ASTM (2016). Standard Test Method for Determining the Apparent Chloride Diffusion Coefficient of Cementitious Mixtures by Bulk Diffusion] provides a systematic procedure to determine the apparent diffusion ...
Passivation and Chloride-Induced Depassivation of Additively Manufactured Duplex Stainless Steel Clads in Simulated Concrete Pore Solution
Publisher: ASCE
Abstract: The metallurgical and electrochemical behavior of additively manufactured super duplex stainless steel (SDSS) clads on carbon steel [low-carbon steel (LCS)] substrates are investigated in a simulated concrete pore solution. ...
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