Concrete Admixtures - Project Profiles:
Marcellin-Champagnat Gym Floor

Project: Marcellin-Champagnat Gym Floor
Location: Saint-Jean-sur-Richelieu, Quebec, Canada
Products: STRUX® 90/40 Synthetic Macro Fiber Reinforcement , Eclipse® Floor , and Adva® 120
Concrete Supplier: Baillargeon, Saint-Jean-sur-Richelieu, Quebec
Concrete Contractor: J.C. Sirois, Inc., Rougemont, Quebec

The Challenge . . .

The Marcellin-Champagnat Secondary School was adding a new gymnasium and needed a high performance floor — a seamless slab-on-grade solution to provide a smooth, durable surface for recreation. The challenge was creating the gymnasium-sized 120 by 80 foot slab with no control joints while mimimizing shrinkage and cracking.

The Solution . . .

The construction team started with good flooring construction practices, and with guidance from the American Concrete Institute, developed an innovative mix design including Grace's STRUX® 90/40 Synthetic Macro Fiber Reinforcement to provide maximum crack control and durability. In addition, Eclipse® Floor shrinkage reducing admixture was included to minimize drying shrinkage, and ADVA® 120 superplasticizer was added to increase workability. Together, the three admixtures provided a formula for success that surpassed expectations. "The concrete floor performed exactly as I hoped it would," said Yvan Desharnais from the Marcellin-Champagnat School. "I couldn't see a crack in it."