80 lb. High Early Strength Concrete Mix

QUIKRETE® 5000 Concrete Mix is suitable for all concrete applications requiring a high-early strength concrete designed to reach 5,000 psi once cured.

I believe it would work but only when you use the adhesive to bond the concrete together. I have not had much success with bonding concrete together but I was told that the concrete I was repairing was to old and I needed to replace entire slab

Presuming a 4” nominal post, the footer would be 12” by 12” and 42” long. At these dimensions, you will need 3.5 cubic feet of concrete. Each 50-pound bag of QUIRKETE® Fast-Setting Concrete Mix yields approximately 0.375 cubic feet, so you will need 10 50-pound bags. Yields will vary with waste, uneven subgrade, etc.

Please contact your local The Home Depot store for pricing and availability.

QUIKRETE® 5000 Concrete Mix is suitable for all concrete applications requiring a normal-setting product which will achieve 1500 psi after 24 hours and 5000 psi once cured. QUIKRETE® 5000 Concrete Mix will set in 4-6 hours after placement; if a faster setting time is desired, a Fast Setting product should be used.

QUIKRETE® Sand/Topping Mix (No.1103), in conjunction with QUIKRETE® Concrete Acrylic Fortifier (No.8610) replacing half of the required water content, is the combination of products recommended for a shower pan or a mortar bed for shower base or bathtub installation. ANSI 108.1 provides application and material requirements for shower pans and bathtubs. It is critical that the subfloor / structure underneath be rigid. Bathtubs require secure and adequate support because of the combined weight of the tub, person, and water. Please consult and follow local building /plumbing code requirements.

Each 80 lb bag of QUIKRETE® Concrete Mix will yield approximately 0.6 cu ft. For a 6’ by 8’ slab at 5” thick, you will need 20 cubic feet of concrete 34 80-pound bags of concrete. Yields are approximate and will vary with waste, uneven subgrade, etc.

Yes that is exactly how I used this when I was setting my fence posts.

Typical dimensions for a full pallet of 80-pound QUIKRETE® Concrete Mix are 48” wide by 42” tall by 42” long. These dimensions will vary slightly regionally due to the density of local aggregates.

QUIKRETE® 5000 PSI Concrete Mix is normal setting; it will typically begin to stiffen after 60-90 minutes and will be '‘thumbprint hard’ after 4-6 hours.