Architecture

Concrete Spalling – Expert Article | Robson Forensic

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Concrete Spalling – Expert Article | Robson Forensic

Delamination and spalling of a concrete member are both undesirable conditions; not only do they represent a potential struck-by hazard in the scenario where the spalled concrete falls and strikes a person, but they also reduce the cross sectional area of the concrete member and decrease its ability to safely carry imposed loads. An additional consideration is that both delamination and spalling offer increased access of air and water to the reinforcing steel within that member; thus creating a cycle of corrosion and increased access of the corrosive elements exacerbating the process with each subsequent cycle.

Beyond the obvious aesthetic issues, a reduction in the cross sectional area due to spalling and delamination is synonymous with a weakened concrete section. Additionally, delamination and spalling require increased maintenance, subsequent higher maintenance costs, and can result in a decreased service life of the concrete member(s).

#112 Hagerbach – The Bat Cave of Tunnelling

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#112 Hagerbach: The Bat Cave of Tunnelling

6/17/21 by Reby Media

Web player: https://podcastaddict.com/episode/124557747
Episode: https://media.blubrry.com/engineeringmatters/content.blubrry.com/engineeringmatters/TTP_HAGERBACH_mixdown_mp3_VERSION_1_ENG.mp3

Every good superhero universe has its origins story. Hagerbach’s begins with Rudolf Amberg, looking to innovate and find new efficiency savings for his iron mine. So began a 50-year journey from testing equipment and explosives, to fire and tunnel safety simulations, and ever more creative uses for underground space. Ultimately the mining industry in Switzerland failed, but Hagerbach survived, and is still an iconic test site for the mining and tunnelling industries. This year it will celebrate its history and look towards its future with the NXT 50 Festival. And some of the ideas on display will push the use of underground space to greater heights than ever before. Guests Antonia Cornaro, Business Development Manager, Amberg Engineering Felix Amberg, President, Amberg Group Michael Kompatscher, CEO, Hagerbach Test Gallery Resources For more information on the Hagerbach NXT 50 Festival, click here For a previous episode of The Tunnelling Podcast that covered underground farming in Hagerbach, click here and a video explaining the concept can be found here For information about Mission Earth First click here

For the International Tunnelling Association’s Committee for Underground Space, click here
And to learn more about Edge Computing Underground, click here Supporters The Amberg Group is a unique knowledge, engineering and technology provider of logistics and infrastructures for smart cities, hubs and networks through innovative combinations of above and underground space usage. Its products and services cover in a digitalized manner the entire life cycle of the infrastructures and all engineering and technology aspects. ACO is the leading supplier for drainage solutions in the building industry. Drainage Solutions for the tunnelling industry is one of the core competencies of ACO. The combination of unique materials with the ACO safety concept for tunnels offers the optimal solution for every project. The prefabricated systems are built to the individual design of every project and ensures an easy and fast installation.