Seabee Masonry Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Type S mortar is known for its high strength and is specifically designed for use in load-bearing applications. It has a mix ratio that typically includes one part cement, one part lime, and six parts sand, which contributes to its durability and overall strength. This type of mortar is ideal for structural masonry, such as in masonry walls, facades, and some types of masonry support systems. The high compressive strength of Type S mortar makes it suitable for use in environments where the mortar must support significant weight, ensuring that the bond between the bricks or blocks remains stable over time.

This strength characteristic helps to prevent structural failure and provides the necessary support for the weight of the wall or any additional loads placed upon it. This is in direct contrast to lower strength mortars or those designed for decorative purposes, which do not have the structural integrity required for load-bearing applications.