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2014SumShotcreteEMag

Sustainability Completed shotcrete application at low tide The concrete base of the lighthouse was conditions that constantly disrupted shooting divided into 14 triangular sections, each sepa- schedules. The skill of the Cimota Inc. certified rated by a vertical construction joint. Each sec- nozzlemen and the quality of the specially tion was shot from the bottom of the section (at designed King shotcrete mixture were evident the base of the lighthouse) to the top to maximize by the overall quality of the completed project. the amount of material that could be applied After 2 years, the performance of the shotcrete before the action of the rising tides threatened has met all expectations and Public Works and to wash out the applied shotcrete. As the tide Government Services Canada has expressed retreated, cleaning and preparation work was complete satisfaction with the performance of completed on the next section and the next the product and the installation. shooting session began. To ensure the project would be finished in time to meet the fall 2004 deadline, Cimota Inc. elected to use two Aliva AL 246 shotcrete Patrick Giroux is President machines, supplied by King Packaged Materials’ of Cimota Inc., a Quebec, Minequip division. Cimota Inc. also used two Canada-based civil contractor ACI certified nozzlemen. This challenging shot- specializing in shotcrete and crete rehabilitation project was successfully concrete repair, rock protec- completed on time despite the difficult weather tion and stabilization, drilling, and grouting. He is a graduate civil engineer from Sherbrooke Pointe de la Prairie Lighthouse University, Sherbrooke, QC, Canada. Giroux has over 15 years of experience in shotcrete and Project Name concrete repairs. Rehabilitation of the Pointe de la Prairie Lighthouse Simon Reny, Eng., is Manager of the Technical Services for Project Location King Packaged Materials L’Ile-aux-Coudres, QC, Canada Company (an ASA Corporate Shotcrete Contractor Member), where he is respon- Cimota Inc. sible for all mixture design General Contractor development, quality control, Yves Germain Construction and technical support. He received his degree in civil engineering from Laval Project Owner University in 2004. He is a member of the Amer- Canadian Coast Guard ican Concrete Institute; a member of ACI Com- Architect/Engineer mittee 506, Shotcreting; and a member of the BPR Inc. Shotcreting-Guide Subcommittee and the Shot- Material Supplier creting-Underground Subcommittee. He is also Past President of the International Concrete King Packaged Materials Company Repair Institute’s Quebec Chapter. 50 Shotcrete • Summer 2014


2014SumShotcreteEMag
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