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2014WinShotcreteEMag

Sustainability Shotcrete = Sustainability T series detailing the “Top 10 Sustainability Benefits of in-place construction.As a reminder, our “Top 10” series covered these topics:1. Formwork savings of 50 to 100% over conventional cast-- magazine’s SustainShotcretehe Summer 2013 issue ofability column marked the completion of a 10-article Shotcrete.” We’ve had great contributions to the series by 2. Formwork does not have to be designed for internal various authors, including Cathy Burkert, Michael Cotter, Oscar pressures. Duckworth, Charles Hanskat, Joe Hutter, Ray Schallom III, 3. Complex shapes require very little—if any—formwork. Ted Sofis, and Marcus von der Hofen. 4. Crane and other equipment savings or elimination. 5. Labor savings of at least 50% in repair applications. 6. New construction speed savings of 33 to 50%. 7. Speed of repair reduces or eliminates downtime. 8. Better bonding to the substrate enhances durability. 9. Adaptability to repair surfaces that are not cost-effective with other processes. 10. Ability to access restricted space and difficult-to-reach areas, including overhead and underground. Additionally, over the course of the 2-1/2 years our “Sustain- ability Top 10” series has run, we’ve had many other articles in Shotcrete magazine that have addressed sustainability topics, either directly or indirectly. In many ways, sustainability is becoming a key aspect of all types of shotcrete work we report on in Shotcrete magazine. In fact, three articles in last Fall's issue directly relate to sustainability! • The Technical Tip, “Material Velocity at the Nozzle,” by Nicolas Ginouse and Marc Jolin, detailed practical research on nozzle material velocity with the intent to develop future Shotcrete sprayed in place against one-sided forms saves guidance on optimizing—and hopefully reducing—rebound. 50% of the forming required in cast-in-place installations No flat surfaces here—shotcrete is a natural choice for this project 56 Shotcrete • Winter 2014


2014WinShotcreteEMag
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