Heavy-Duty Pothole Repair Products

Standard 5 and 7 Gauge cold-mix products perform reliably under car and light commercial traffic. They start to struggle under sustained heavy-axle loads — buses cornering at intersections, B-double freight on long-haul routes, loaded haul trucks on a mine ramp, container handlers pivoting in port pavement. Under those loads, lighter aggregate mixes can rut or shear at the edges of the patch.

Heavy-duty mixes solve that with two changes: larger aggregate (10 or 14 mm) for mechanical interlock, and a higher polymer binder loading for elastic recovery under shear. The patch keeps its shape under repeated heavy-axle traffic and resists rutting in summer heat.

10 Gauge Mix is the workhorse heavy-duty product. The 10 mm aggregate gives it real structural depth, and the polymer-loaded binder resists rutting in summer heat and freeze-thaw cracking in winter. It's the default specification for council road crews working on arterials and main roads, and for contractors patching freight routes and bus corridors.

Applied the same way as the lighter grades — pour, overfill, compact — it's trafficable immediately and bonds permanently under load.

14 Gauge Mix steps up the aggregate size to 14 mm for deep voids and big repairs. Use it for failed joints, washed-out trenches, blown-out potholes deeper than 75 mm and any repair where structural mass matters more than surface finish.

For lifts deeper than 50 mm, place the mix in stages — compact each 50 mm lift fully before adding the next. That keeps the binder activation consistent through the depth of the patch and avoids a soft layer in the middle.

Heavy-duty cold-mix is widely used at mine sites, ports and industrial yards where standard hot-mix paving is either impractical or too slow. A pothole on a haul road costs production time per hour of closure; on a port apron it stops cargo movement. The economics of permanent repair without a paver are decisive.

Site teams typically keep pallet quantities at the workshop and dispatch a single operator with a vibratory plate or vehicle compaction for any new failure. The patch is back in service within 30 minutes including travel time.

Heavy-duty 10 and 14 Gauge mixes are resistant to water, salt and most petroleum chemicals — important for fuel station forecourts, mining sites, coastal infrastructure and pavement near brine or waste streams. The polymer binder does not break down with normal chemical exposure.

For severe chemical environments — solvent spills, concentrated acid or alkali — contact us for application-specific advice before specifying.

Heavy-duty mixes need slightly more compaction effort than the lighter grades because the aggregate is larger. A vibratory plate or roller is the right tool; hand-tamping a 14 Gauge patch will under-compact and leave voids.

Always overfill by ~10 mm before compaction. For 14 Gauge in deep voids, stage the lifts at 50 mm and compact between each. Reopen to traffic immediately — the first hour of heavy traffic finishes the in-place compaction and locks the patch in.