The typical concrete strength used for a driveway is in the 3000 psi to 4000 psi range, although temperate areas of the country may use lower strengths. Contractors, when ordering ready mixed concrete, should advise the producer of the intended use for the concrete.
What is 8000 psi concrete used for?
It is estimated that a 50-story structure with 4-foot diameter columns using 4000 psi concrete can reduce column diameters by approximately 33% by using 8000 psi concrete (Peterman). High –strength concrete is occasionally used in the construction of highway bridges.
What is the highest psi for concrete?
6,000 psi
How long does it take 6000 psi concrete to cure?
Curing means maintaining proper moisture and temperature. Allow newly placed material to set until surface is hard to the touch. SAKRETE PSI 6000 will set in approximately 6 hours. Keep material damp or cover with plastic to prevent evaporation of mix water for at least three (3) days.
What is 6000 psi concrete used for?
PRODUCT USE PSI 6000 can be used for any application requiring concrete in a minimum thickness of 50 mm (2”), such as slabs, footings, steps, columns, walls and patios.
What strength should concrete be at 7 days?
Age Strength percent
------- ----------------
3 days 40%
7 days 65%
14 days 90%
28 days 99%
How long should concrete cure before putting weight on it?
When waiting for concrete to dry, keep these timeframes in mind: 24 to 48 hours - after inital set, forms can be removed and people can walk on the surface. 7 days - after partial curing, traffic from vehicles and equipment is okay. 28 days - at this point, the concrete should be fully cured.
How long does it take 5000 psi concrete to cure?
A typical concrete compressive strength specification requires 4,000 to 5,000 psi at 28 days. Some go a step further and mandate that concrete products cannot be installed or used until 28 days after the date of manufacture.28 Oct 2013
What is the strongest concrete PSI?
Ultra-High Performance Concrete (UHPC) is a cementitious, concrete material that has a minimum specified compressive strength of 17,000 pounds per square inch (120 MPa) with specified durability, tensile ductility and toughness requirements; fibers are generally included in the mixture to achieve specified requirements
What is 9000 psi concrete used for?
High strength concrete is being used in many high-rise apartment and office buildings. In this case, high strength means 9000 psi (62.0 MPa). Quality control, aggregate availability and specification restrictions are the factors that seem to have held back the general use of stronger concretes.
What is 2500 psi concrete used for?
Contractors use 2,500 PSI concrete, one of the most affordable, to make walkways, driveways and floor slabs and is used as a fill material in construction projects. Concrete with a higher PSI is preferred for its durability. Many states prohibit the use of concrete for construction with PSI levels under 2,500.9 Sept 2016