• “Mortar” and “grout” are not synonyms
• Workable paste used to bind construction blocks together
• Becomes hard when it sets
• Typically made from a mixture of sand, a binder such as cement or lime, and water
• Not as strong as CMU (does not need to be)
• Purpose is to be the “glue”
• Type “S” or “N” (and others)
• Mortar cement has more tensile strength than masonry cement
• Mortar cement is better for unreinforced masonry walls