Reference number : GC-2017-Q3-00561, amendment number : , agreement type : G, recipient legal name : Aoude, Hassan (University of Ottawa)|Aoude, Hassan (Université d’Ottawa), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Recent events around the world have demonstrated the vulnerability of existing buildings and infrastructure to_x000D_
blast loads caused by explosions. Blast loads have traditionally not been considered in the design of buildings_x000D_
in Canada, and there exists an important need to develop cost-effective methods to retrofit vulnerable structures_x000D_
(Government offices, Embassies, etc.) to improve blast performance and ensure safety._x000D_
Masonry walls are used in many older buildings as either non-load bearing (infill) walls, or as structural_x000D_
load-bearing walls. Modern codes require minimum steel reinforcement for masonry walls, but older buildings_x000D_
have no such requirement. As a result, unreinforced masonry walls (URM) in many existing buildings_x000D_
throughout Canadian cities and towns have very low resistance to out-of-plane blast loading. Moreover, failure_x000D_
under low blast pressures can lead to the formation of flying debris travelling at high speeds that can injure_x000D_
occupants._x000D_
This project will examine the potential of using an innovative shotcrete (Engineered Fiber Reinforced_x000D_
Shotcrete) developed by KING Shotcrete Solutions to enhance the blast performance of existing URM walls._x000D_
This high-performance, fiber-reinforced, pre-packaged and sprayable shotcrete has been developed for use as a_x000D_
protective liner in underground tunnels to protect against high-intensity rockbursts caused by earthquakes. Due_x000D_
to the provision of short fibers, the engineered shotcrete has very high toughness and energy-absorption_x000D_
capacity, making it ideal for extreme blast load applications. The protective design will involve application of a_x000D_
thin layer of Engineered Fiber Reinforced Shotcrete as a rapid and cost-effective blast retrofit method for URM_x000D_
walls. As part of the project, physical testing of full-scale retrofitted walls under blast loads will be conducted_x000D_
using the University of Ottawa Shock-tube, which is capable of safely and accurately simulating the_x000D_
shockwaves generated by explosions. The project will result in an innovative retrofit method that will open up_x000D_
new market opportunities for this shotcrete product, and increase the blast safety of buildings in Canada., program purpose french : Recent events around the world have demonstrated the vulnerability of existing buildings and infrastructure to_x000D_
blast loads caused by explosions. Blast loads have traditionally not been considered in the design of buildings_x000D_
in Canada, and there exists an important need to develop cost-effective methods to retrofit vulnerable structures_x000D_
(Government offices, Embassies, etc.) to improve blast performance and ensure safety._x000D_
Masonry walls are used in many older buildings as either non-load bearing (infill) walls, or as structural_x000D_
load-bearing walls. Modern codes require minimum steel reinforcement for masonry walls, but older buildings_x000D_
have no such requirement. As a result, unreinforced masonry walls (URM) in many existing buildings_x000D_
throughout Canadian cities and towns have very low resistance to out-of-plane blast loading. Moreover, failure_x000D_
under low blast pressures can lead to the formation of flying debris travelling at high speeds that can injure_x000D_
occupants._x000D_
This project will examine the potential of using an innovative shotcrete (Engineered Fiber Reinforced_x000D_
Shotcrete) developed by KING Shotcrete Solutions to enhance the blast performance of existing URM walls._x000D_
This high-performance, fiber-reinforced, pre-packaged and sprayable shotcrete has been developed for use as a_x000D_
protective liner in underground tunnels to protect against high-intensity rockbursts caused by earthquakes. Due_x000D_
to the provision of short fibers, the engineered shotcrete has very high toughness and energy-absorption_x000D_
capacity, making it ideal for extreme blast load applications. The protective design will involve application of a_x000D_
thin layer of Engineered Fiber Reinforced Shotcrete as a rapid and cost-effective blast retrofit method for URM_x000D_
walls. As part of the project, physical testing of full-scale retrofitted walls under blast loads will be conducted_x000D_
using the University of Ottawa Shock-tube, which is capable of safely and accurately simulating the_x000D_
shockwaves generated by explosions. The project will result in an innovative retrofit method that will open up_x000D_
new market opportunities for this shotcrete product, and increase the blast safety of buildings in Canada., agreement title english : Engineered fiber-reinforced shotcrete for the blast retrofit of unreinforced masonry walls, agreement title french : Engineered fiber-reinforced shotcrete for the blast retrofit of unreinforced masonry walls, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-12-13, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada