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It is a never-ending problem! Corrosion of rebar in concrete is the major cause of infrastructure deterioration worldwide. April 24th is the corrosion awareness day. So, here is an article in contribution to the challenges we have dealing with corroding concrete infrastructure Explore 12 Futuristic Technology Trends Solving Concrete’s Biggest Challenges. Download our 2025 Innovations Calendar! Download Now Rebar Corrosion 101Steel reinforcement is naturally protected against corrosion in the alkaline environment of concrete. In exposure to aggressive conditions the protective passive layer (that is only few nano-meters thick) breaks down and in the presence of oxygen and moisture, rebar corrosion is initiated by the formation of anodic and cathodic areas. The expansive iron oxide that forms in the anodic area eventually results in the cracking and delamination of concrete.How Critical Is This?It is estimated that billions of dollars is required…

UCLA researchers turn carbon dioxide into sustainable concrete. The new building material could transform polluting emissions into a valuable resource. A team of interdisciplinary researchers at UCLA has been working on a unique solution that may help eliminate these sources of greenhouse gases.

Estimates put the cost of concrete corrosion at about $9 billion annually. This article looks at the causes of corrosion and what’s being done to mitigate it and notes that ultrasonic and videoscope inspection can help determine if corrosion is occurring inside concrete.

Design issues or lack of quality control? Empty oil cans were used as “construction materials” in the 17-story building that collapsed earlier this month in Taiwan following the 6.4 magnitude earthquake. Moreover, the rebar bending appeared to be performed incorrectly.

De-icing concrete could improve roadway safety, guard against corporate espionage Explore 12 Futuristic Technology Trends Solving Concrete’s Biggest Challenges. Download our 2025 Innovations Calendar! Download Now January 22, 2016 by Scott SchrageA 200-square-foot slab of seemingly ordinary concrete sits just outside the Peter Kiewit Institute as snowflakes begin parachuting toward Omaha on a frigid afternoon in late December.The snow accumulates on the grass surrounding the slab and initially clings to the concrete, too. But as the minutes pass and the snow begins melting from only its surface, the slab reveals its secret: Like razors, stoves and guitars before it, this concrete has gone electric.Its designer, UNL professor of civil engineering Chris Tuan, has added a pinch of steel shavings and a dash of carbon particles to a recipe that has literally been set in concrete for centuries. Though the newest…

In this video, you will learn more about the concept and application of the Maturity Method in concrete. Maturity Measurement has long been known as an effective approach in estimating the early age strength of concrete materials.

In an article published by the Concrete International, the basic concepts and measurement techniques as well as the applications of electrical resistivity method as novel NDT approach for concrete quality control are discussed.