The effect of climate conditions on materials:
The role of material quality in structure safety:
- Cement and concrete: The appropriate grade of concrete, which directly depends on the quality of cement and mixing ratio, provides the necessary compressive strength. Weak concrete will not provide the required compressive strength, which is often determined based on the cubic test, that is, at least ( f'_c \geq 250 \text{ kg/cm}^2 ).
- Steel and rebar: It is necessary to use rebars with a specific and certified steel grade to withstand tensile and bending stresses in the framing.
The importance of long-term savings:
The main classification of commonly used construction materials in Parand city
1. Basic materials and foundation
Cement and ready concrete:
- Grade of concrete: Engineers should determine the required grade of concrete according to structure calculations. For example, concrete used for heavy foundations often needs to have a minimum grade of 350 kg of cement per cubic meter.
- Standard certificates: Ensure that the national standard and production date are up to date.
- Types of commonly used cement: In case, due to the nature of the projects, Portland cement type 2 (suitable for low sulfate environments) and in special cases type 5 (resistant to sulfate) are widely used.
Rebar and hardware:
- Checking the sizes: Making sure that the rebars purchased match the engineered sizes (for example, 8, 10, 16, etc.).
- Reputable brands: In the buying the best building materials in Parand market, brands that have chemical and mechanical analysis certificates should be chosen.
