Recommended Compressive Strength Of Concrete For Residential Basement Floor Slab

The specification for the floor of a maintenance building called for a 6 inch slab thickness and concrete with a design compressive strength of 3000 psi.

Recommended compressive strength of concrete for residential basement floor slab.

Water reducing admixtures lower the amount of water needed for workability and improve compressive strength at all ages. 1 2500 3000 psi most concrete has a psi rating of 2500 to 3000. While traditional concrete normally has a compressive strength ranging anywhere from 2 500 to 5 000 psi uhpc can have a compressive strength of up to 10 times that of traditional concrete. Psi is a measure of compressive strength or the ability of the material to carry loads and handle compression.

One of the most important factors before ordering ready mix concrete is knowing the required compressive strength. Compressive strength must be at least 3500 psi. Between 3 500 to 5 000 psi on suspended slabs beams and girders. This number increases to 30 000 psi when fully cured for 28 days.

The actual average cylinder strength for the floor concrete was 3630 psi. Good slabs on ground are made from a mix in which the water cement ratio is kept low and they contain as much coarse aggregate as possible at the surface. Need help with a concrete project. After just 14 days of curing uhpc has a compressive strength of 20 000 psi.

However 4 500 psi as the ideal. Four months after the floor was placed 10 cores were drilled measured and tested in compression. Typically reinforced concrete ranging between 3 500 to 4 000 psi is used on footing and slabs on grade. Compressive strength mpa air content r 1 footings for walls columns fireplaces and chimneys 0 70 15 3 6 r 2 foundation walls grade beams piers etc.

This type of concrete can be used for sidewalks and residential driveways. And walls and columns normally require between 3 000 to 5 000 psi. 2 3500 4000 psi concrete with a psi of 3500 to 4000 is typically used for concrete beams and footings.