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2017SpringShotcreteEMag

| SHOTCRETE CORNER pour concrete construction, with a 6000 psi (40 MPa) concrete design mixture. Buesing submitted pricing for shotcrete installation of these perimeter walls as a value Fig. 5: Rod, float, and trowel work to tolerance wall thickness to ground wires Fig. 6: Applying a light broom finish 58 engineering alternative to the form-and-pour construction, showing both a time and cost savings to the project. For synergy of cost control, scheduling, and overall coordination of scope, our contract for these shotcrete finish walls was directly with Suntec instead of Ryan Companies. Through this collaboration process, our wall installation was performed in six phases over the span of 12 months (November 2014). To accelerate the schedule and help accommodate the aggressive schedule by Suntec, Buesing increased its crew size by 20% from what is typical, and worked 9- to 10-hour-long days, and frequently worked Saturdays. An extensive mockup panel was constructed to evaluate and test the various integral components, an appreciably more robust mockup panel than typical. The mockup structure included the soil nail heads for shoring, the complete waterproofing system, reinforcing bar installed per plans, an inside corner, and an outside corner. As planned, the actual shotcrete finish wall was installed atop the completed waterproofing system, which was installed over our Fig. 7: Completed shotcrete finish walls in the background (CIP columns by concrete subcontractor in foreground) Shotcrete | Spring 2017 www.shotcrete.org


2017SpringShotcreteEMag
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