Idaho B22C — (12/10) is a type of dry-pack mortar, often referred to as a Type S mortar. It is a premixed cementitious material, made from a combination of Portland cement, hydrated lime, and other additives. This dry-pack mortar is typically used in masonry construction, and can be used for repairing mortar joints, patching, and bonding of concrete, masonry, and stone surfaces. It is designed to provide excellent adhesion, strength, and durability. The Idaho B22C — (12/10) type S mortar is available in different varieties, such as: 1) Standard blend (Type S); 2) High-strength blend (Type H); 3) Rapid-setting blend (Type R); and 4) Low-shrinkage blend (Type L).