Guide to Foundation Crack Repair

Poured concrete walls:
Vertical wall cracks are the most common in poured concrete foundations, they typically form at the bottom corner of a window opening or just below the area where main support beams rest. However, cracks can also form in any area of the   wall where joint or seams are present. When a crack forms in a poured concrete wall,  it typically goes all the way thru the concrete, thus allowing an entry point for ground water and even mud or silt to enter the basement or crawlspace area. The general options for repairing these cracks are as follows:

1) Excavating the crack from the exterior side of the foundation wall (if accessible), cleaning and prepping the crack and surrounding wall area, applying a hi-modulus two part epoxy in conjunction with a carbon fiber-kevlar covering. This covering or strapping stabilizes and prevents further exacerbation of the crack as well as creating a waterproof seal. In some instances lead anchor pins are used in conjunction with the carbon fiber covering, sometimes referred to as “dog-earing”, which assists in the structural integrity of the repair.

2) Repairing the crack from the interior side of the foundation wall consists of utilizing the same method described above in option 1. This option is many times necessary due to inability to access the crack from the outside. This option is more cost effective since there is no labor involved for outside excavation.

In some instances with a very large crack it is prudent to perform both procedures together to assure the structural integrity of the wall.

In both of these methods, the use of a Dura-wall panel is sometimes recommended. The Dura-wall is 100% plastic (0.50 thickness) panel that is permanently attached to the wall over the repaired area. this panel acts a curing strip for the epoxy and affords another level of water-moisture proof barrier.

The Fortress Carbon Fiber Stabilization System

What is Carbon Fiber?

Carbon fiber is now a proven, popular alternative to steel reinforcing structural substrates in residential and commercial applications. Carbon fiber is highly effective at adding tensile strength to concrete blocks and poured walls. It is superior to steel since it is stronger and non-corrosive. It can also be bonded to the surface of concrete   structures at any time to stop bowing and cracking. This allows limitless applications for new constructions, repair, retrofit, and seismic upgrades.

Studies conducted over the last 20 years confirm that carbon fiber is a strong, durable and safe product. Carbon fiber does not rust, nor is it susceptible to alkali deterioration. Once carbon fiber is encapsulated in any epoxy matrix, strength is locked in, it will not stretch, creep, or bend over time.

Fortress Carbon Fiber Stabilization System

· Non-obtrusive - lays flat to substrate
· No destructive attachments made to the floor or ceiling
· Inclusive of Kevlar provides additional shear strength—Stronger then traditional steel beams
· Grid is fully encapsulated in epoxy anchoring it in place
· Able to conform to bowed walls
· Can be painted for smooth clean look
· Lifetime Warranty on Strapping
· 7 Years Guarantee on Labor


MSDS For Epoxy

Epoxy A 4020
Epoxy B 4020
Epoxy A 4550
Epoxy B 4550
Epoxy 526A
Epoxy 526B

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