Do all slabs marked with a white letter need to be removed and replaced?
A Not in all cases. Concrete removal and replacement is the traditional method for sidewalk repair when the damage is so extensive that alternative methods are not enough to make the necessary repairs. Today there are a wide variety of sidewalk repair technologies available that, when implemented correctly, can result in major savings of both time and money. In some instances if the sidewalk concrete is in good condition and there is only a vertical misalignment along the seam between slabs (See Stub Toe and Longitudinal Slope in Sidewalk Inspection Criteria) it may be possible to correct the problem by one of the following methods. 1. Concrete Raising (Slabjacking): Concrete raising is a repair method that lifts concrete sidewalk slabs back to their original position by pressure injecting cement or non cement material under the sidewalk. Holes are drilled through the slab and grout is injected to raise the concrete slab or to fill the voids under them. Although it is less costly than
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- Do all slabs marked with a white letter need to be removed and replaced?
