Yes, the latter.jamesdocherty said:Hi, as the compressive strength of concrete formula is max load applied/ surface area, could you say that the compressive strength of concrete is inversely proportional to it's surface area or this would make no sense as the concrete with a smaller surface would have a smaller max load anyway and hence the compressive strength of concrete for a certain mixture will always be roughly the same, thanks for any help!
Concrete compressive strength refers to the ability of concrete to withstand compressive loads without breaking or failing. It is typically measured in pounds per square inch (psi) and is an important factor in determining the overall strength and durability of a concrete structure.
The compressive strength of concrete is determined by conducting a compression test on a sample of the concrete. This involves placing the sample in a testing machine and applying a gradually increasing load until the sample fails. The maximum load that the sample can withstand before failing is then recorded as the compressive strength.
Several factors can affect the compressive strength of concrete, including the water-cement ratio, the type and amount of cement used, the quality and size of aggregates, and the curing process. Other factors such as temperature, humidity, and the presence of admixtures can also impact the strength of concrete.
The compressive strength of concrete is important because it directly affects the structural integrity and durability of a concrete structure. Buildings, bridges, and other structures must be able to withstand heavy loads and environmental factors, and a strong compressive strength is necessary to ensure their stability and longevity.
The compressive strength of concrete can vary depending on the specific mix design and curing process, but a typical range for normal weight concrete is between 3,000 and 6,000 psi. High-strength concrete can have compressive strengths of up to 20,000 psi, while low-strength concrete may have strengths as low as 500 psi.