At Cal Poly, recreation is seen as an important part of their students’ education, physical, and intellectual well-being, while providing the opportunity for social interaction. But with Cal Poly’s growing student population in San Luis Obispo, their existing Recreation Center was no longer up to the task.
The University needed a cost-effective way to remodel and expand their Recreation Center. The expanded 166,000 square foot facility would transform their Recreation Center to create a more accommodating facility and help attract new students as well.
Designed to achieve green building Leadership in Energy and Environmental Design (LEED) certification, the new facility architecture included approximately 95,000 square feet of existing area that was renovated or reconfigured and approximately 100,000 square feet of new construction which included six racquetball courts, two basketball courts, a multipurpose court, pool, lobby, and workout rooms.
The site for the new construction was tight. Part of the Recreation Center building was adjacent to a higher-grade level and near roads that constrained the property line and would have made excavation beyond the perimeter of the building footprint a difficult task. Accordingly, the architecture design and construction team determined that using spray concrete foundation walls would provide a more cost-effective solution without requiring extensive excavation in that area of construction.
To waterproof the shotcrete walls would have posed some challenges, but the team brought on technical expertise from Blue360sm Design Advantage and specified a blindside waterproofing product specifically designed for shotcrete applications.
By using Preprufe® SCS blindside waterproofing in the architecture design, there was no need to modify a conventional waterproofing system to try to make it work for a shotcrete application. The innovative system is engineered for shotcrete foundation wall applications with a unique combination of waterproofing membranes and injection grout to prevent water leaks and minimize the potential for water damage.
The system’s composite membrane, built to withstand the force of shotcrete, was attached to the soil retention system.
Then, the specially formulated hydrophilic grout was injected into the composite membrane to fill and seal the waterproofing system.
Throughout approximately 10,000 square feet of shotcrete foundation walls at the Recreation Center, the system’s components worked together to form a continuous and integral bond to the structure, to eliminate water migration between the membrane and shotcrete.
“GCP’s reps came out and were very helpful with the installation of the product,” said Larry Taniguchi, the architect on the project from Cannon Design. “We have a sub-floor drainage system in place so we see water there when it rains, and we haven’t seen any evidence of water coming through the waterproofed walls.”
When installed by trained and approved applicators, Preprufe® SCS is designed to prevent water leaks, minimize the potential for water damage, and reduce the time and cost for any needed repairs on foundation walls caused by water damage.
By using the right products with quality construction practices, the education project’s design and construction team helped ensure the project’s success—as a valuable asset to Cal Poly’s students now, and classes for years to come.
Blue 360sm Field Advantage.
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Last Updated: 2018-12-12