• Best For: Early-entry and same-day joint sawing of green concrete where the aggregate is hard - the combination that undercuts and destroys a general-purpose blade.
• Highlight: The MK-7601W bond is specified for green concrete with hard aggregate, the opposite duty from the cured-concrete MK-7503: it resists the undercutting that a fresh, wet, abrasive slab causes.
• Expert Note: Timing decides the result on green concrete - saw too early and the joint ravels, too late and the slab has already cracked - and control joints are normally cut to about a quarter of slab thickness, well inside this 18-inch blade's range.