Type M, on the other hand, contains less Portland cement and is typically used for thin joints or light-duty masonry jobs, such as chimneys and sidewalks. Type S is often used for heavy-duty masonry jobs, such as walls and foundations. Type S mortar contains a higher percentage of Portland cement, making it stronger and more durable than Type M mortar. Type S and Type M mortar are both types of masonry cement, but they differ in the amount of Portland cement they contain. What is the difference between Type S and Type M mortar? Its low compressive strength makes it well-suited for these applications, as it can be easily manipulated and does not require too much pressure when applying. Type O mortar is also used for setting natural stone and thin veneers on walls and other types of masonry applications. It is commonly used in areas that require a lighter mortar such as residential foundations, staircases, patios, chimneys and other masonry structures. This type of mortar has a low compressive strength rating and is relatively easy to mix and use. Type O mortar is a type of mortar used in different types of construction applications, primarily as a thin bed mortar for laying bricks/blocks.
