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2017SpringShotcreteEMag

• Greater square footage (m2) per day can be delivered consistently; • Project schedules are accelerated because of productivity and efficiency gains; • Faster project completion translates into substantial cost savings; • The inherent flexibility of shotcreting versus pouring reduces the complexity of many structural forming challenges; and • More surface finishing options are available. LESS FORMWORK All vertical, two-sided formwork is designed to withstand a minimum of 600 lb/ft2 (2900 kg/m2) of concrete head pressure. The resulting forms are substantial and heavy to carry this high internal pressure. With shotcrete applications, however, a one-sided form is all that is required and this form only needs to withstand 50 lb/ft2 (240 kg/m2) of pressure. This reduced pressure requirement is a direct result of Fig. 3: Complex forming for architectural “Y” columns, using one-sided shoot panels Fig. 4: Retaining wall with an architectural pattern of radiating reveals, with alternating broom-and-polished finish Fig. 5: Complex shoot panel formwork for a church; notice the lack of internal bracing required in the window blockout Fig. 6: Finished shotcrete structure using only one-sided shoot panels, eliminating the risk of voids in the slender pillars that can occur when using form-and-pour www.shotcrete.org Spring 2017 | Shotcrete 53


2017SpringShotcreteEMag
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