Asphalt Patching Techniques
Hot and Cold Asphalt Patching Techniques
Removal & Replacement Asphalt Patching is a more permanent and more costly method of repairing deteriorated asphalt. This is not always necessary unless the problem is due to base failure (asphalt foundation). In this case removal is required in order to properly compact and prepare the base. This kind of patching is used quite often in highly trafficked zones. All edges of the repair area should be cleaned for best tacking results. Try to make the edges straight and even. Once the decayed asphalt has been removed, the base should be leveled and compacted. The new fresh asphalt patch is then applied in two layers, both about 1 and a half inches thick, compacting each layer for a more stable, permanent patch.
Hot Asphalt Patching
If you are intending to patch with hot asphalt. It is extremely hot and can burn your skin. It also takes some skill to work the hot asphalt with a rake. It needs to be leveled and has to be the right thickness. Asphalt patching contractors usually carry hot asphalt in an asphalt hot box. A hot asphalt box is insulated and heated to keep the asphalt mix hot. This allows asphalt contractors and large property owner to work with the asphalt in it's hot workable form. Without an asphalt hot box, the asphalt would cool too quickly and turn to a solid form.
Cold Asphalt Patching Application
Cold Asphalt Patch can be applied under all weather conditions. It has superior adhesion to wet or dry surfaces. Remove any loose material from the pothole and fill it with Cold Asphalt Patch using a shovel. The pothole can then be compacted with a shovel, a hand tamper, vibratory tamper, or truck tires. Irrespective of the compaction method, the patched area should be immediately opened to vehicular traffic as it will not kick up, push, or ravel.