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Repair Methods
Granite's proven repair systems include
Drainage correction systems including surface drains and french drains can also be provided to correct problem areas.
Click here for info on watering and drainage.
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To schedule a free evaluation or for telephone consultation call us now at 972-412-2171 or email us at
Info@GraniteFoundationRepair.com
Foundation Repair Methods
Granite's Foundation Repair Solutions are situation dependent, based upon the age and style of foundation and house as well as the soil conditions and goals of the property owner.
Granite's Model 2000 Steel Pier provides the very best in long lasting support.
Our robust steel pier is driven to solid rock or a hard load bearing strata at pressures of up to 10,000 PSI, and depths of as much as 60 feet. Time for foundation repair is typically 1 to 3 days.
- Bracket Material is steel, typically ASTM A-36
- No Shims, No Pins, and No Concrete
- Typical 48” pier section lengths
- pier shaft material is high carbon 2 7/8” O.D, steel
- Shaft sections have a typical yield strength of 50 KSI
- All joints include a steel overlap of approximately 6".
- Piers individually driven to rock or hard, rock like load bearing strata.
- Friction reduction collar used to assure maximum depth.
The Pressed Pilings provides a fast, clean solution. The pre-cast 5000 PSI pilings are rigidly mated with a solid core of steel and concrete.
The pilings are hydraulically driven to refusal using an installation force of up to 5000 PSI. Studies have shown that due to the soil mechanics of friction and compression, this system will attain a support strength of twice its installation force within one month after installation. The system consists of pressed concrete pilings topped with a pier cap, blocks and shims.
Other processes occasionally used in budget foundation repairs:
Drilled or Poured Concrete Piers: Holes are drilled to a depth of 9-12 feet below the surface, then filled with reinforcing steel and concrete. The pier shown is commonly called a double 8, that is, twin 8 inch columns. A 12 inch in diameter single column pier is also available. Angular spacing of the two legs is typically 5-15 degrees. Poured concrete pier is topped with concrete spacers and shims.
Mud Jacking is commonly used to lift driveways and sidewalks and is less often used in foundation repair. It seldom provides satisfactory long term results, since the process does not either reach down to the zone of soil stability or bedrock.
Most foundation companies will not provide a warranty for a foundation repair using mudjacking.
Spread Footings were used in the past and have been proven to be less than satisfactory. The footing is typically installed directly under the beam as a poured concrete slab measuring 3'x3'x3'. Practice has shown that
since the footing is in the highly expansive 3-5 foot depth, it may contribute to foundation upheaval and further problems.
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