ICC Structural Masonry Practice Exam

Type S mortar is primarily known for its high compressive strength, which is one of its defining characteristics. This type of mortar is designed to withstand significant loads, making it particularly suitable for structural applications such as concrete masonry units and various types of reinforced masonry. The strength of Type S mortar is due to its specific proportions of cement, lime, and sand, which provide both the necessary compressive strength and durability.

While other types of mortars may prioritize different characteristics—such as flexibility or permeability—Type S is optimized for strength and performance under load. This makes it a common choice in construction where structural integrity is paramount, such as in foundations and load-bearing walls.

Understanding the properties of various mortars is essential for selecting the right material for specific construction tasks, where the structural demands can greatly impact the longevity and stability of the masonry work.