Mortar: Mortar is generally used as a bonding material to join masonry units (like bricks, stones, or concrete blocks) together. It is not meant to be a structural material on its own. Mortar is typically weaker than concrete because it contains a higher proportion of sand, which reduces its compressive strength.
Concrete: Concrete is a structural material used to create building foundations, slabs, columns, beams, and other load-bearing components. It has a higher cement content and typically includes a coarser aggregate (like gravel) compared to mortar. This composition gives concrete a much higher compressive strength than mortar, making it suitable for bearing heavy loads.
In terms of strength, concrete is significantly stronger than mortar. Concrete typically has a compressive strength ranging from 3,000 to 7,000 psi (pounds per square inch) or even higher, depending on the mix design and curing conditions. In contrast, mortar generally has a compressive strength ranging from 750 to 2,500 psi.
The difference in strength between concrete and mortar is due to their intended purposes. Concrete is designed to provide structural support and bear heavy loads, while mortar is primarily used to bond masonry units and create a cohesive, durable wall or structure.
It's important to use the appropriate material for a given application. Attempting to substitute mortar for concrete in a structural context would likely result in an inadequate and potentially unsafe construction. Conversely, using concrete as a bonding material for masonry may not be practical due to its higher cost and stiffness, which can make it less effective for accommodating the movement and settling of masonry units.
