The strength of concrete
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What is the bearing capacity of concrete per square meter? For example, what are the values for C15, C20, C25, C30, and C35 respectively? I have another question: I’m not majoring in civil engineering, so I don’t know what C15 means either. Is it some code referring to a type of concrete? There’s no information on this topic; learn about it.*
C15 is the strength grade designation for concrete; the higher the grade, the greater the compressive strength of the concrete. For example, the designed compressive strength of C30 is 14.3 MPa, which means it can withstand a compressive force of 14.3x10^6 N per square meter, or 1430 tons of axial pressure (based on design values). However, this is a theoretical value derived from tests on concrete samples, and it is also influenced by the actual composition of the concrete, the methods of pouring and curing, as well as the quality of construction~~
The poster’s question can be found in “Building Materials”