Quikrete Concrete Mix 60 lb

Quikrete Concrete Mix 60 lb delivers 4,000 psi strength at 28 days — the baseline for structural concrete work in Montana. Each bag yields 0.45 cubic feet, making material calculations straightforward for contractors who need accurate estimates. The mix is specifically engineered for pours 2 inches thick or greater.

Skip it if you’re chasing bargain-basement concrete or need specialty mixes for unique applications. This is straight-up structural concrete for footings, slabs, and posts.

Strength and Specifications

The numbers that matter for Montana construction:

Specification	Value	Source
7-day strength	2,500 psi	(ASTM C39)
28-day strength	4,000 psi	(ASTM C39)
Yield per bag	0.45 cubic feet	(manufacturer)
Density	~140 lb/cu ft	(manufacturer)
Water requirement	4-7 pints per bag	(manufacturer)
Slump	2-3 inches	(manufacturer)

The mix meets ASTM C387 standards for packaged concrete materials. That 4,000 psi strength puts it right where Montana contractors need it for freeze-thaw resistance. Lower strength concrete cracks and spalls when moisture freezes inside it. This mix has the density to resist that damage.

The formula is pre-blended portland cement, sand, and gravel. Nothing fancy. No fibers, no accelerators, no special admixtures. Just concrete that works.

Cold Weather Performance

Montana isn’t California. The mix requires temperatures above 50°F for application — that’s your hard cutoff. Protect fresh concrete from freezing for the first 48 hours or you’ll have a crumbling mess come spring.

Curing takes 7 days in cold weather versus 5 days in warm conditions. Plan accordingly. Quikrete recommends their Acrylic Concrete Cure & Seal for maintaining moisture during cure, but any decent curing compound works.

The real challenge in Montana is that narrow window between “too cold to pour” and “first freeze.” Smart contractors batch their concrete work for late spring through early fall. Trying to push the season with regular concrete is asking for callbacks.

Installation and Coverage

Each 60 lb bag covers 0.45 cubic feet. Do the math before you start — nothing worse than running short on a Saturday pour. For a typical 4-inch thick sidewalk, you’re looking at about 2.7 square feet per bag. A 10x10 slab at 4 inches needs roughly 37 bags.

Mix with 4 pints of water minimum, up to 7 pints maximum. Dampen the sub-grade before pouring. Strike off and float immediately. Standard concrete work — nothing special here.

Cut control joints every 6 to 8 feet to manage cracking. Montana’s temperature swings make control joints non-negotiable. Concrete will crack. Control joints tell it where.

The Verdict

Quikrete Concrete Mix 60 lb earns a 4.6 rating from over 7,500 reviews. That’s contractor validation, not marketing fluff. Professional contractors value its fast setting times and predictable performance.

This isn’t revolutionary concrete. It’s reliable 4,000 psi mix that does what it says. The rapid setting time requires precise timing during mixing and placement — have your crew ready when you add water.

For Montana contractors dealing with short building seasons and freeze-thaw cycles, predictable performance matters more than fancy features. This mix delivers consistent 4,000 psi strength when you follow the instructions. No surprises. No callbacks. Just concrete that works.

Frequently Asked Questions

How many bags are needed for a 10x10 slab? At 0.45 cubic feet per bag, a 10x10 slab at 4 inches thick requires approximately 37 bags. Always buy 10% extra for waste and over-excavation.

Can this concrete be poured in cold weather? Don’t apply if temperatures will drop below 50°F. Protect from freezing for 48 hours minimum. Allow 7 days for cold weather curing instead of the standard 5 days.

What’s the actual strength of this mix? 2,500 psi at 7 days and 4,000 psi at 28 days when tested to ASTM C39 standards. That’s contractor-grade strength suitable for structural applications.

How does this compare to fast-setting concrete? Fast-setting concrete cures in 20-40 minutes but is designed for different applications. The 60 lb mix is for general structural work requiring full strength development.

What’s the minimum thickness for pouring? Minimum 2 inches thick. Anything thinner risks cracking and won’t develop proper strength.