Remedial Waterproofing Products
Bentogrout®
Bentonite Injection Grout for Remedial Waterproofing
Bentogrout® is a high-solids grout consisting of a proprietary blend of bentonite and polymers formulated for sealing water leaks in existing below-grade structures. Bentogrout® is pumped in a fluid state adjacent to the exterior of the structure where it sets up to a solid material forming a waterproofing membrane around the structure. Bentogrout® can be used to seal leaks in concrete, masonry block, brick, and stone foundations.
Installation is fast and easy. Simply mix Bentogrout® with water and pump it adjacent to the exterior of the building. There it solidifies and expands slightly to form a waterproofing membrane. It can be pumped from above-grade outside the structure without excavating or from the interior of the structure through drilled holes in the walls or floors. Limited jobsite space is required for injection.
Unlike many remedial waterproofing products that are applied as a surface treatment to the interior of the foundation, Bentogrout® is applied to the exterior of the building where it stops the water before it can penetrate the structure and further corrode the reinforcing steel. The thick Bentogrout® membrane covers the exterior surface of the structure filling voids in the adjacent soil and bridging over small cracks in the concrete. Also, Bentogrout® has the ability to self-seal if the structure settles and therefore its performance is not limited by future hairline cracking in the concrete.
Bentogrout® does not shrink or dry out in sub-surface soil formations and is not affected by freeze/thaw cycling. It remains flexible, maintains a putty-like consistency over time, and retains a swell potential to seal itself off. And since Bentogrout® primarily consists of natural minerals, it is friendly to the environment and will last the life of the structure.
Applications
Typical applications include:
- Concrete and masonry foundation walls
- Manholes
- Utility vaults
- Foundation slabs
- Tunnels
- Sheet piling interlocks
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Footing & Wall Joints |
Around Pipes |
Slab Edges |
Structural Penetrations |
Akwaseal® LV
Low Viscosity, Polyurethane Chemical Grout
Akwaseal® LV is a hydrophobic polyurethane chemical injection grout designed to stop water infiltration through concrete cracks, joints, fractures and unproperly consolidated areas. Akwaseal® LV is injected as a liquid directly into a leaking crack, fracture, hole or joint. After injection, the grout reacts with water and forms into an expanding foam that fills the void. The cured foam adheres to the concrete within the crack to form an inpermeable, elastomeric seal.
The seal works in three ways. Firstly it forms a chemical bond to the surface area. Secondly, it forms a mechanical anchor in the irregular surface areas of the joint. And thirdly, through expansion, a compression seal is formed within the crack, fracture or hole. The elastomeric and flexible properties of the cured foam allow it to resist cracking or pulling apart and to stand up to freeze/thaw and wet/dry cycles.
Akwaseal® LV is non-corrosive, has EPA approval for contact with potable water and adheres well to most surfaces including concrete, clay tile, metal, wood, stone, mortar and brock.
In addition Akwaseal® LV can be applied without the need to stop the seepage or leaks prior to application. The grout bonds to wet or dry surfaces.
When it comes in contact with water a chemical reaction occurs changing the product to a dense polyurethane foam through which water will not pass. After curing it forms a flexible gasket and an effective barrier to water infiltration.
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Crack Repair |
Penetrations |
Structural Joints |
Footing/Wall Joints |
