North Carolina Building Contractor License Practice Exam

Portland cement is categorized into different types based on its properties and the specific requirements of various construction projects. Type 1 Portland cement is the most commonly used variety, as it is designed for general-purpose construction. It possesses adequate strength and durability for a wide range of applications, including foundations, pavements, and structural elements.

The characteristics of Type 1 cement make it suitable for normal construction environments where exposure to moisture, freezing temperatures, or sulfate attack is limited. Because it provides a good balance of performance and cost-effectiveness, it is the preferred choice for most builders and contractors.

Other types of Portland cement, such as Types 2, 3, and 4, are formulated for specific conditions. Type 2 is often used when moderate sulfate resistance is needed, Type 3 is used for high early strength applications, and Type 4 is designed for low heat of hydration, making it suitable for massive structures. However, for the majority of ordinary construction tasks, Type 1 cement remains the standard due to its versatility and adaptability to various construction needs.