Severe subgrade deficiencies may require complete removal of part or all of the pavement and base material.  After excavation and removal, pre-existing conditions in the subgrade such as excess moisture, shallow utility lines, missing aggregate base, or incorrectly prepared subgrade may require additional steps in the base preparation.  These conditions are usually not discovered until the overlying asphalt is removed.  After careful inspection, your Sanchez Paving representative can recommend the most effective methods to resolve these conditions.  When pre-existing conditions have been corrected, new aggregate is supplied as needed and re-compacted.  The new asphalt is then placed and compacted with vibratory rollers to finish the process.

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