Concrete will crack – that is a fact. Despite advancements in today’s construction technologies, concrete structures continue to crack in unanticipated places due to settling of the structure and ground movement. A crack normally falls into two of four categories: static or dynamic, and structural or non-structural. A static crack does not move, while a dynamic crack does; and structural cracks place the integrity of the structure in jeopardy, while non-structural cracks can be eyesores and allow water infiltration.

If the crack is static, non-structural, and does not leak, epoxies are great to restore design strength and structural integrity. However, when concrete shrinks, expands, and leaks, the use of hydrophilic and hydrophobic polyurethane injection grouts to protect and permanently seal active or potential water leaks is the optimum product of choice.

For over 40 years, Avanti’s wide range of injection grouts have been used to address common challenges associated with concrete construction: stopping leaks, stabilizing soil, and controlling groundwater in structures such as basements, elevator pits, parking garages, vaults, and various other above/below-grade concrete structures. Our knowledgeable and experienced team regularly assists engineers, contractors, and owners through every aspect of the grouting selection and process.

The use of injection grout is a proven method for stopping leaks. There are four primary reasons why flexible injection grouts are the material of choice to stop leaks in concrete structures:

  • Fills Cracks Completely – the right injection grout can permeate any crack that will allow water movement and expand to provide a permanent, waterproof seal from inside-out, top to bottom.
  • Remains Flexible – polyurethane injection grouts are flexible when cured allowing the concrete to “breathe” without cracking at or near the injection repair spot.
  • Forms Permanent Seal – properly applied, injection grouts form an adhesive bond, mechanical lock, and compressive seal. This prevents water from bypassing the grout and migrating between the grout and the walls of the crack.
  • Safe to Use – injection grouts are safe to install when handled according to SDS instructions. Many of our injection grout products are NSF/ANSI/CAN 61: Drinking Water System Components – Health Effects certified, ensuring the product meets regulatory requirements for the US and Canada. To find out more about which products are NSF/ANSI/CAN 61 certified, visit Injection Products.

Common types of projects:

  • Sub-Grade Structures
    • Basement Walls
    • Vaults
    • Tanks
    • Elevator Pits
    • Electrical / Telecom Vaults
    • Gas Mains
    • Parking Garages
    • Conduit Pipes
  • Tiebacks
  • Culvert Repairs
  • DOT Repairs
  • Bridges
  • Sound Walls
  • Foundation Walls / Flooring
    • Food Processing Plants
    • Industrial Warehouses
    • Commercial Buildings
    • Industrial Facilities
  • Control Joints - Small and Large
  • Piers
  • Seawalls
  • Slab Lifting
  • Stadium Bleacher Repair
  • Water Fountain Repair
  • Steel Tanks
  • Tunnels
  • Dams - Concrete
  • Pools and Spas
  • Airports
    • Runways
    • Tunnels
    • Railways
  • Pre-Excavation / Soil Stabilization
  • Fish Hatcheries
  • Power Plants
  • Missile Silos
  • Various other concrete structures

Case Studies: