Shotcrete
A construction technique used to apply concrete or mortar through a high-pressure hose onto a surface.
Crack Repair
Fixing or remedying cracks that develop in concretre substrates.
Joint Reconstruction & Closures
Repairing or replacing joints in bridge and building structures, as well as permanently sealing joints to prevent water infiltration, air leakage, and other potential issues.
Self-Consolidating Concrete
A specialized type of high-performance concrete that is designed to flow and consolidate on its own without the need for mechanical vibration.
Waterproofing and Concrete Coatings
Prevents water intrusion and enhance the durability and longevity of concrete structures.
Bride Deck Overlays & Repairs
Maintenance and rehabilitation measures employed to extend the service life and structural integrity of bridge decks.
Projects
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Preparation
Before shotcreting, the surface to be covered with concrete is prepared. This may involve cleaning, roughening, and sometimes applying a bonding agent to ensure proper adhesion of the shotcrete.
Mixing
The shotcrete company will prepare the concrete mix, which usually consists of cement, aggregates (such as sand and gravel), water, and sometimes additives or admixtures to enhance certain properties like workability or strength.
Application
The shotcrete is pneumatically projected onto the prepared surface using specialized equipment. There are two main methods for shotcrete application: dry-mix and wet-mix.
- Dry-Mix: In this method, the dry ingredients are fed into the shotcrete machine, and water is added at the nozzle just before spraying onto the surface.
- Wet-Mix: Here, all the ingredients, including water, are pre-mixed before being fed into the shotcrete machine and then sprayed onto the surface.
CSI has over 60 years of combined repair and maintenance in the restoration industry.
