JUSTIN COUTO > Grouting Specialists

Justin is a solution-driven project manager and grouting specialist with more than 10 years of diversified, hands-on construction experience.

Justin’s project experience includes the design and placement of specialty grout formulation for void filling, soil stabilization utilizing sodium silicate and cement grouting techniques and water cut-off solutions for geotechnical, underground and heavy civil applications. His extensive knowledge of grouting techniques allows him to resolve complex and challenging situations on-site to avoid production delays.

Justin provides technical direction for the grouting team to deliver the highest quality performance in all stages of the grouting process. His management of on-site operations ensures smooth execution of our services in a safe working environment.

Support for clients to handle challenging water and soil control issues on a variety of construction sites

Restoration of concrete structures, including high-performance waterstops, crack injection, and application of concrete repair materials

Control of water inflows through leaking concrete structures, construction joints, expansion joints, rock fissures and shoring

Grout mixing and pumping equipment for application of cement and chemical grouts

Light-weight cellular grout for annular space grouting and void filling

Construction job site troubleshooting and training of contractor personnel for concrete repair and water control applications

Cellular Grouting for Infrastructure Project

Greater Toronto Area, ON

Assisted an infrastructure contractor with a cellular grouting operation to backfill relined culverts along Highway 407.
Cellular Grouting for Void Filling Annular Space

Toronto, ON

Assisted an utility contractor with a cellular grouting operation to backfill underground casings, as part of the project to upgrade the Toronto’s electrical system.
Cement Grouting in LRT Construction Project

Toronto, ON

Performed microfine cement grouting and waterstop operations using polyurethane resins, and provided soil stabilization in cross passage tunnels along the road in a light rail transit (LRT) line construction project.
Cement Grouting to Fill Voids Behind a Tunnel Liner

Toronto, ON

Performed soil stabilization and microfine cement grout injection to fill voids around the tunnel liner at the Eglinton Crosstown Project in Downtown Toronto
Chemical Grouting for Masonry Restoration

Guelph, ON

Voids within a century old church tower required a low-density fill to prevent water infiltration from migrating within the masonry structure. Multiurethanes technical team safely filled the existing voids using durable chemical grout materials.
Chemical injection to Repair Construction Joints

Toronto, ON

Provided technical support to stabilize extra-large construction joints (250 m long) on a dam rehabilitation project in Western Manitoba.
Emergency Cement Grouting Operation to Stabilize a Retaining Wall

The City of Toronto required Multiurethanes' technical expertise for an emergency cement grouting project to stabilize an undermined retaining wall over a 50 m length.
Innovative Water Cut Off Solution for a Hard Rock Tunnel

A large tunneling contractor found itself in a difficult situation with a large flowing water leak in a new rock tunnel 20 metres underground. An innovative solution involving chemical grouting through single grout hole injection while isolating and identifying nearby localized leaks was successfully implemented.
Leak Sealing in an Underground Chamber

Toronto, ON

Performed crack injection work to provide a solution based on chemical grouting for a leaking underground chamber.
Leak Sealing in Sewer Rehabilitation Project

Markham, ON

Implemented a specialized leak sealing solution and customized grouting equipment to repair leaks in a large diameter sewer pipe for a municipal sewer rehabilitation project.
Soil Stabilization for High-rise Development Construction

Guelph, ON

A building restoration contractor experienced water leakage into the mechanical room. Polyurethane resin was injected to fill the holes, forming a semi-rigid foam barrier and preventing further water leakage.
Void filling in a Water Treatment Plant

North Bay, ON

Provided technical services to fill voids and stabilize soil underneath a footing, during an expansion project at a wastewater treatment plant.