Concrete pressure

This program calculates the design compressive strength of unreinforced concrete according to section 3.1.6 Design compressive and tensile strength in NS-EN 1992-1-1:2004+A1+NA.

(1)P The value of the design compressive strength is determined according to formula (3.15)

The program also calculates the reduced compressive strength of concrete with reduced curing time at an age, t, in number of days according to section 3.1.2(6) in NS-EN 1992-1-1:2004+A1+NA.

(6) The compressive strength of concrete at an age t depends on the type of cement, temperature, and curing conditions. For a mean temperature of 20 ˚C and curing in accordance with NS-EN 12390, the compressive strength of concrete at different ages fcm(t) can be assessed using expression (3.1).