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Concrete Crack Repair

On December 11, 2013, in Decorative Concrete, by admin
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With low-pressure crack injection, you can temporarily repair a basement leak and foundation crack without high cost and disruptive excavation.

While concrete cracks appear to be typical, it is not recommended that they remain ignored. Most homeowners best identify concrete cracks in their basement, either on the foundation wall or on the floor. They may also recognize cracks on the garage floor, patio or in-ground pool.

These cracks, typically due to drying shrinkage, thermal movement or other causes usually are minor and result in few problems. More often than not, a foundation crack will widen over time and result in water seepage or possibly the loss of structural integrity. Foundation and slab cracks are not only an eyesore, but they may hinder the value of the home.

Fortunately, there is an easy way to temporarily repair such cracks without the need for costly and disruptive excavation or drain tile. Poured foundation cracks may be repaired by using low-pressure injection of an epoxy or polyurethane foam material. For the repair of concrete floor cracks, certain epoxies and polyurea materials exists, suitable for such slab repairs.

The application of such materials may be completed by a basement waterproofing contractor or a do-it-yourself homeowner. Either way, the repair of concrete cracks in either the foundation or the slab may efficiently and effectively be completed in as little as an hour or more.

How Crack Injection Works

Most basements eventually leak. “Even if a crack is not leaking now, eventually water will find it,” says Lou Cole, president of Emecole Inc., Romeoville, Ill., a manufacturer of epoxies and polyurethane foams for all types of foundation crack repair. Cole says that in the Midwest, crack injection has been an accepted way of tackling these repairs for many years, and more and more foundation repair contractors around the country are adopting the technique because it is cost-effective, reliable, and permanent.

Why low-pressure injections is best

“Emecole’s customers, primarily residential waterproofing contractors, have less than a 1% callback rate for crack repair work. More than 99% of the time, crack injection will fix the problem,” says Cole. “Most contractors in the Chicago area (as well as other parts of the country) warranty the injection repair for the life of the structure,” he adds.

Limitations of Low-Pressure Injection

Cole launched his company in 1987, after coming up with the concept of dual-cartridge dispensing of two-component materials using a spring-assisted dispensing tool similar to a caulking gun. The application that seemed to show the most promise for his dual-cartridge system was low-pressure injection of cracks in concrete. That gave him the impetus to develop a line of epoxies and polyurethane foams specifically formulated for those types of repairs.

The whole purpose is to fill the crack, from front to back, with epoxy or polyurethane. “For basement walls, low-pressure injection is the best way to ensure that the crack is completely filled,” Cole maintains. This method is effective for filling cracks 0.002 to 1 inch wide in walls up to 12 inches thick. It can also be used to fill cracks in concrete floors and ceilings.

Source: http://www.concretenetwork.com/concrete/crack_injection/

 

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