3000 psi 3500?
4500
500psi
3000 psi concrete weighs Approx 3900 Lb/yd3
The strength of concrete on the 28th day is considered full strength with regard to the engineering calculations for its use. Concrete continues to get hard for 100 years or more, as long as it has water on it now and then. For a 6-sack concrete mix, its 28 day compressive strength should be at 4,000 psi or greater.
3000 psi 3500?
4500
500psi
3000 psi concrete weighs Approx 3900 Lb/yd3
Concrete 3000 psi means that the concrete has a compressive strength of 3000 pounds per square inch (psi). This measurement indicates how much pressure the concrete can withstand before cracking or breaking. A higher psi value generally means stronger and more durable concrete.
The strength of concrete on the 28th day is considered full strength with regard to the engineering calculations for its use. Concrete continues to get hard for 100 years or more, as long as it has water on it now and then. For a 6-sack concrete mix, its 28 day compressive strength should be at 4,000 psi or greater.
It is exactly 4351 psi but generally referred to as 4500 psi.
If is standard concrete it is usually 3000 psi mix
rades
Generally speaking, concrete is rated anywhere from 2000 psi to 10,000 psi. Of course if you do NOT use the proper ratio of aggregate (usually sand) to cement and water you can make concrete that is even weaker. When concrete is ordered from a delivery company, you specify the strength of he mix or pour that you want.
4&1/2 sack type 1 type 2 mix is quite standard in the industry but 5 sack mix is very common also. the higher the sack mix the greater the concrete breaking strength.
That will depend on the thickness (depth) of the concrete.