Compared across 7 stores. Prices are checked against each store and labelled with when.
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Sakrete Crack Resistant Concrete Mix is a pre-blended 50 lb bag of cement, sand, stone and reinforcing fibers that reaches 4000 psi. The fibers are the selling point: they cut the shrinkage cracks that plain mixes often show on slabs, posts and repairs. It is not a fast-set product, so you can walk on it the next day but should keep traffic off it for about 72 hours. It suits fence posts, small slabs, steps and patching, where a bag mix is easier than ordering ready-mix. Against basic 4000 psi bag mixes it trades a slightly coarser, fiber-flecked finish for better crack resistance.
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Lowest price we've seen: $6.47 on Nov 9 at Home Depot. Tracked across 7 stores since Nov 9.
Owners of fiber-reinforced Sakrete mixes generally report easy mixing and solid, hard-set results for posts and small pours. Complaints center on visible fibers at the surface and on bags that arrive hard or lumpy.
