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NextStar-technologies-concrete-foundation-crack-injection-repairCategory ListPolurethane-crack-injection-kits
NextStar-technologies-concrete-foundation-crack-injection-repairRelated ItemsPolurethane-crack-injection-kits
600X ML Applicator
NX600ML Applicator
Dual component manual dispensing gun for 600ML X 600 and 600ML X 300ML Used with Carbon Fiber / Kevlar kits
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$124.95 USD
In Stock

Fortress Kevlar Necktie Anchor kit 6 straps
Fortress Kevlar Neckties 6
Fortress Stabalization Kevlar Necktie Top of wall anchor system used with fortress grid strap installations 6 anchors with bolts supplied in the kit
Add to Shopping cart  More Product Info
$321.00 USD
In Stock

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Fortress Stabilization Grid Strap kit
NextStar-technologies-concrete-foundation-crack-injection-repairItem DetailsPolurethane-crack-injection-kits
Fortress Stabilization Grid Strap kit
Item Name:

Fortress Stabilization Grid Strap kit

Item #:
Fortress 6 Grid Strap Kit
Price/ea:
$1,195.00 USD  $999.00 USD
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Stop Concrete or Masonary walls from bowing further ! 
This Kit Will cover up to 30ft of wall support Installed on 4ft centers.

  • 6  7.6ft Carbon fiber/Kevlar straps
  • 4  300/600ML 4020 High modus Fortress Epoxy
  • 1 300/600ML Dispensing tool
  • 4 Sets of gloves & Safety goggles & Instructions
  • Shipping
  • Contractor Pricing does not include Tool
 Injection gun included

Included Applicator 600x300ml

Bowed Basement or Foundation Walls: their Cause and Solution
Bowed Basement or Foundation Walls occur as a result of soil loads pushing against the wall. Compounded with depth and other factors and the lateral forces surpass the foundation's original resistance to these loads. Over time, these factors can produce lateral bending and the foundation or basement wall becomes bowed. This condition also produces significant cracking. If left unattended this condition will worsen with time jeopardizing both the structural integrity and resale value of the property.

Repair bowed horizontal cracked wall with cabon fiber and kevlar straps by fortress stabalization systems

Bowed basement or foundation walls can be straightened but require excavation of foundation, lifting the weight of the structure off of the wall and pushing the wall back to as close to plumb as possible.
Even after this is accomplished, the wall itself has lost the structural integrity and requires reinforcement.

You can also reinforce a bowed concrete foundation or basement wall that is still within tolerance at it's current condition without straightening. Historically, I-beams were used to correct a bowed basement or foundation wall by erecting the beams in a fashion that provides lateral concrete reinforcement. While remaining an effective method, installation can be expensive and the end result are obtrusive beams sticking out from the wall. In addition, the cracks which have undoubtedly occurred as a result of the bowed basement or foundation wall are not addressed.

Bowed basement walls can be resolved using the latest carbon-fiber technology developed by Fortress Stabilization Systems. Using carbon-fiber kevlar sheet straps in combination with specifically designed epoxies, bowed basement walls can now be repaired and arrested with little to no obtrusiveness. The repaired bowed basement wall can then be painted thereby creating an almost invisible repair, thereby increasing the resale value of the home. Conditional that product is installed by certified Installer.
Free shipping Phone support for installation
Any cracks in the straped walls must be injected with epoxy only to complete the process. The wall must not be allowed to move and compress the straps after installation and the epoxy injected into the cracks provides the solution.
Other Fortress introduction and technical videos    Installation Video

 

 Q. Why is Fortress Stabilization Systems grid straps different from other forms of carbon fiber?

A. Prior to Fortress grid strap, there were two types of carbon fiber commercially available: wet layup (tow sheet), and protruded plate. Both of these have pros and cons. After evaluating the strength and weaknesses of available products, Fortress developed the Carbon Fiber/Kevlar grid strap.

Wet layup: Must use more fabric for wall coverage to achieve desired strength and must be impregnated on the job site, which is messy. This also requires a much higher skill level in getting tows straight. Any misalignment of tows and carbon has no strength at all. If used on damp walls it may also fail to properly bond.

Protruded Plate is very strong. However, its is also very rigid and typically has very poor bonding capabilities. Epoxies do not bond well to epoxies or polyester resins. This can be a disadvantage on deflected surfaces. It also depends on a "sandwich" bond, where voids can be typical and unseen.

Fortress Stabilization Systems Carbon Fiber Kevlar Grip Straps has the advantages of both the wet lay up and protruded plate but eliminates the disadvantages related to both.


Q. Do I need to always install straps on 4ft. centers? A. In compliance with A.C.I. #530 the maximum spacing for external reinforcement is four times the thickness of the masonry wall, translated is 4ft., this is with a 2.5 safety factor.


Q. Will carbon fiber straighten a wall?

A. The simple answer is no, and most ways of straightening walls require excavation.

Tie-backs may, over a period of time, straighten walls to a certain degree. Tie-backs tend to creep or loosen and may punch through and twist a masonry wall when tightened. So the required tightening of tie-backs every 6 months is adjusting the grip that can loosen. The lamination of carbon fiber will hold the wall in it's current deflection or can be applied after straightening to hold the wall in place and strengthen the foundation.


Q. My walls move thermally with the seasons. Cracks opening in the winter and closing in the summer. How does this affect the carbon fiber?

A. By injecting with epoxy all cracks at the time of carbon fiber lamination, will assure a wedge when the wall attempts to hinge. Epoxy material goes into compression not allowing the wall to move outward, while the laminated carbon fiber will not allow the wall to move inward.


Q. A competitor is showing us that their carbon fiber is much stronger than Fortress, what does this mean?

A. We manufacture a 12k, 24k, 48k, 80k as well as a 100k. The 50k grid makes sense for higher wall and loads; however, it is overkill for an 8ft. high with 7ft. backfill. What they neglect to inform you is that you will never achieve 40,000 tensile or even close to 20,000 tensile before the bond will fail.

Example: One manufacturer makes a 4" steel beam and the other manufactures a 6" beam. A 2" beam is required. Of course, the 6" beam is stronger. Or is it? Not really, because neither the 4" or 6" will ever load up. The connection will fail before the steel does.


Q. How does FRP perform in fires on interior installations?

A. Strengthening of a Structure Composite Design Guide ACI 440-F states:

"A Class-A FRP system can be used as long as it is self-extinguishing. A Class-B can be made a Class-A by utilizing ¼ gypsum board or coatings."

Fire ratings can be misleading. Fire ratings are a timetable calculating the time a person has to leave a burning building. A Class-A fire rating is a measure of how much smoke is produced and how quickly the resin burns.

Painted on fire coatings such as in tumescent paints help by swelling and insulating the surface below. The reaction time of a coating and heat deflection of epoxy is far different. For example: heat deflection of Fortress 4020 is 175 degrees and foaming of coatings is around 300 degrees. Most epoxies are self-extinguishing after the fire source is removed.

FRP is a Reinforced Polymer or plastic. The kind of fibers used play little role in its performance in a fire. The fibers maintain their physical properties at high temperatures; they are actually produced at extreme temperature. Carbon Fibers are manufactured by cooking at roughly 1,900 degrees F.

It therefore is the bonding agent that is in question under fire. The most common bonding agent is a thermo set plastic, two-part resin: such as epoxies, vinyl esters and polyesters. It is Glass Transition Temperature Tg. where polymer begins to soften and how resin performs. Thermo-sets do not re-harden and lose any physical characteristics of hardened laminate.

Tg is a function of initial cure temperature. For example: many per preg plates and grids are cooked over 300 degrees. Therefore their glass transition is at or higher than 300 degrees. Epoxy resins in the field are usually cured at room temperature and have a Tg of roughly 120 to 175 degrees.

In conclusion the difference between 120 degrees Tg and 300 degrees Tg is simply the amount of time. Yet you will have a Class-A fire rating. A thermal barrier such as ¼ gypsum board will improve this. But like many of the compounds that make up a building, depending on the duration of heat and smoke, many components may be lost and in need of replacement.


Q. Why use Fortress Carbon Kevlar Staples for stitching concrete cracks?

A. Crack injection became less expensive with the introduction of dual cartridge tube sets, dual dispensing guns, etc. However, it also became too easy. Everyone with a pulse began shooting cracks with some kind of sealant.

Poured wall companies, when they are slow, will pull a guy off a crew and send them out for warranty repairs. Find a contractor today that doesn't offer a warranty, but are they still in business 2 or 3 years later when the repair fails.

Very few crack repairs fail immediately. It is long-term creep and fatigue of material injected with the movement of foundation that can fail over time. By cross-stitching crack repair with staples this creep is eliminated, improving long-term performance of repair material.


Q. Is the Carbon Fiber Reinforcement in the Building Code.

A. Yes. However the original ICBO codes are and have been changing based on new codes and ACI 440 Technical Guidelines. Therefore only a very few manufacturers have across the board approval. This is actually a good thing as our systems have upgraded dramatically over the last seven years, so approvals are based on outdated systems. All Fortress products are manufactured and meet ACI Guidelines as well as ASTM Standards.

The most common test method is ASTM D-3039.
Stop Concrete or Masonry walls from bowing further!.Use a Fortress carbon fiber kevlar foundation wall reinforcement grid straps. Reinforce basement foundation wall structure from bowing or re-cracking after Epoxy crack injection.
 
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