Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The blocks may be stone In geology, rock is a naturally occurring solid aggregate of minerals and/or mineraloids, brick A brick is a block of ceramic material used in masonry construction, usually laid using mortar, cinder blocks In the United States, a concrete masonry unit — also called concrete block, cement block or foundation block — is a large rectangular brick used in construction. Concrete blocks are made from cast concrete, i.e. Portland cement and aggregate, usually sand and fine gravel for high-density blocks. Lower density blocks may use industrial wastes, etc. Mortar becomes hard when it sets, resulting in a rigid aggregate structure. Modern mortars are typically made from a mixture of sand Sand is a naturally occurring granular material composed of finely divided rock and mineral particles, a binder such as cement In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term "opus caementicium" to describe masonry which resembled concrete and was made from crushed rock with burnt lime as binder or lime Lime is a general term for calcium-containing inorganic materials, in which carbonates, oxides and hydroxides predominate. Strictly speaking, lime is calcium oxide or calcium hydroxide. It is also the name for a single mineral of the CaO composition, occurring very rarely.[citation needed] The word 'lime' originates with its earliest use as, and water. Mortar can also be used to fix, or point, masonry when the original mortar has washed away.[1]
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