Treat grit exposure as part of the service context and document it separately from snowfall. Compare the observed deterioration and similar work exposure before attributing a difference to the edge material.
Record grit exposure and pavement texture separately from snowfall
Describe where the grit comes from if known, where it is encountered and whether exposure varies by route or event. Keep uncertainty visible; a photograph of dirty snow does not establish particle properties. Note the underlying pavement texture separately so loose material and the road surface are not collapsed into one vague description of abrasion.
The hardened-steel and carbide service guide covers the broader material decision. This enquiry is specifically about adding grit exposure to the comparison record. A snowfall total alone cannot describe the material passing through the clearing task, and a truck assigned cleaner routes is not automatically a fair reference for a truck working repeated gritty sections.
Classify gradual abrasion versus discrete fractures
Document gradual dimensional loss, grooves or polished regions separately from discrete chips, fractures or other damage. These observations help direct a qualified review but should not be treated as a definitive cause diagnosis from appearance alone. Record the installed position and any known events so a single damage incident does not disappear into an average wear-rate calculation.
WESTERN’s edge-selection guidance treats surface conditions as relevant to wear. It does not supply a universal material ranking for the fleet’s particular grit. Ask suppliers to explain how their proposal addresses the documented conditions and which part of the recommendation is supported by relevant service evidence. Avoid converting a hardness comparison into an assumed life multiplier.
Match trial routes and service exposure before interpreting material differences
Match candidates by the route work actually performed and keep grit exposure changes in the trial log. If one candidate serves a section after sanding or another surface event, note that context. Use the same inspection references and removal criteria, and preserve early removals. A convenient total distance is not a complete comparison if contact conditions differ substantially.
For a carbide blade enquiry, provide the route exposure record and the observed removal reason alongside the fitment specification. Ask for a conditional recommendation rather than an unconditional longer-life promise. If the available data cannot separate material effect from assignment differences, report the comparison as limited and identify what a better matched evaluation would need. The useful decision is grounded in the grit-laden task, not in a general claim that dirty snow always favours one material.
Primary references support the specific points linked above; equipment documentation applies to its stated models.
