Masonry cement is a fine, pre-blended mixture of sand and portland cement designed for use in masonry construction. It is manufactured under strict quality control procedures and meets the requirements of ASTM Specification C-91, Standard Specification for Masonry Cement. Masonry cements are specifically formulated to meet the needs of the mason contractor and are available in Types N, S, and M.
Type N masonry cement is specially formulated to produce reinforced masonry mortar for use in load-bearing walls, foundations, chimneys, arches and other masonry structures where high strength and good durability are required.
Type S masonry cement is specially formulated to produce reinforced masonry mortar with increased compressive strength and bonds that exceed the minimum requirements of ASTM Specification C-270, Standard Specification for Mortar for Unit Masonry.
Type M masonry cement is especially formulated to produce mortars with very high bond strengths. The use of Type M mortar results in higher compressive strengths than those specified for Type N or Type S mortars in ASTM Specification C-270.
Masonry cement is specially formulated to provide a workable consistency and superior bond without the use of lime. Masonry cements comply with ASTM C91 and Federal Specification SS-S-1401C. Masonry cement is used for construction and repair of brick, block, and stone for footings, walls, columns, chimneys, fireplaces, arches, and other masonry structures.
Masonry cement is available in three types: Type S (2500 psi), Type N (750 psi), and Type M (2000 psi). Type S masonry cement contains sulfate resisting properties for use where soil conditions are moderate to severe. Types N and M are used where soil conditions are moderate to low.
Types N and M contain air-entraining agents that produce small air pockets within the concrete that help resist damage during freeze/thaw cycles. Air entrainment also enhances workability of the mix during placement. Excessive handling time should be avoided to prevent loss of air content.
Masonry cement is specially formulated to provide the best performance in masonry applications. Masonry cement can be used to make mortar that is workable, durable and resistant to cracking.
Masonry cement is a factory blended combination of Portland Cement, hydrated lime and dried masonry sand which is specifically designed to be mixed with masonry sand (concrete sand) for use in mortar for brick, block or stone construction. Masonry cement conforms to ASTM Specification C 91 and Federal Specification SS-S-1401.
Masonry cement must meet a minimum air content requirement as well as a compressive strength requirement at 28 days. The minimum air content of properly mixed mortar is 6 percent; however, between 7 and 8 percent air is normally recommended. The compressive strength of properly mixed mortar using masonry cement should exceed 17 MPa (2500 psi).
Masonry Cement is specially formulated to ensure a uniform product and color to produce quality masonry mortar for use in brick, block, and stone masonry construction. Masonry Cement provides consistent workability allowing trowel adjustment without disturbing mortar consistency. The type N formula provides good adhesion and long board life. Masonry Cement can be used for load-bearing walls, veneers, patios, walkways, steps, swimming pools and planters.
Masonry cement is a factory-blended combination of portland or blended hydraulic cement and plasticizing materials (such as limestone, hydrated lime, or air-entraining agents). Masonry cements may also contain specified amounts of pozzolans, water repellent agents, or colors. These cements are available in various colors.
Masonry cement is used to produce mortars with increased bonding and water-retention characteristics. Mortars made with masonry cement are also more resistant to water penetration and weathering because of their ability to maintain a high bond strength over time.
Masonry cement is a pre-blended, factory produced mortar mix that can be used without additional mixing of sand or other aggregate and requires only the addition of water. Masonry cement consists of a mixture of portland cement and hydrated lime which is proportioned, ground and blended under controlled conditions. Producers use carefully selected, tested and certified materials to ensure uniformity and consistency in performance. This means that the mason can go right to work without worrying about whether he’s got the correct proportions of cementitious materials and sand for the job at hand.
A masonry cement is a high quality portland-cement based mixture manufactured to conform to ASTM C-91 with the addition of ground limestone, blended with other materials to provide higher workability and durability. Masonry cement is designed for use in mortar for masonry construction; it is not to be used in concrete.
It has been found that portland cement reacts with water to form a gel which fills the voids between sand particles and binds them together into a solid mass. In masonry mortar, this gel also provides an adhesive bond between mortar and masonry units. This adhesive bond is necessary to obtain maximum strength, waterproofing and resistance against freezing and thawing.
When mixed with masonry sand, properly graded from coarse to fine, this uniformity of texture ensures complete hydration between water and cement so that no voids are present in the resulting mortar which would reduce bonding power or durability.
Anns is a contributor at PanyamCements. We are committed to providing well-researched, accurate, and valuable content to our readers.
