Concrete mix and water combine to form concrete. The concrete is found in all the sidewalks and used for the construction of many buildings. There are a few different types of cement, including high strength, fast setting and the mix of regular concrete. While most people may think that there is a weight limit that you can put on the concrete that is not true. If you plan to build a structure or building on concrete, you need to calculate the limit load static on the floor concrete before installation because the weight of the concrete should not exceed 3,000 psi (210 kef / cm²) .

**Instructions**

- Inspect the concrete into which you place the weight check which has been dried properly. Touched by hand to determine if it is dry enough, Inspect for cracks and check it for any that may affect the weight of the structure on the concrete.
- A tape passes along the length and width of the concrete slab that has already been poured. Record both measurements. Multiply the two to get the total square feet (square meters) area.
- Divide the maximum amount of stress that concrete can have the total square footage in feet (meters). If the length was 40 inches (1 m) and width was 10 inches (0.25 m), then the total amount would be 400 square inches (10 m).
- Divide 3,000 / 40 to obtain 75 psi (5.2 kef / cm²). Capacity load of 75 psi (5.2 kef / cm) is sufficient to maintain the structure, since it is not equal to 3,000 psi (210 kef / cm²).