Red Seal Bricklayer Practice Exam

Type N mortar is typically used for non-load-bearing applications due to its balanced characteristics of strength and workability. It has moderate compressive strength and excellent bonding abilities, which make it ideal for general masonry work such as brick walls, chimneys, and parging.

The composition of Type N mortar generally includes one part cement, one part lime, and six parts sand. This combination provides sufficient flexibility and adhesion for typical above-grade applications, where the load is not extreme. The moderate strength of Type N is adequate for structures where heavy loads are not a concern, making it the go-to choice for residential and light commercial projects.

Other mortar types, while having their specific uses, are either too strong or formulated differently for applications that require greater structural integrity (Type M and Type S) or lower strength (Type O) in niche scenarios. However, Type O is light-duty and predominantly used for interior applications or for repairs in historical masonry, which generally limits its use in modern constructions where a balance of strength and workability is required.