Lehigh Masonry Cement Type N Mortar 70Lb Bag
Masonry Cement
Description
Portland Lime Cement
Lehigh Hanson's Portland lime cement consists of portland cement and hydrated lime. The lime serves as a plasticizer. Portland lime blends in Types N, S and M are only covered by ASTM C270, Standard Specification for Mortar for Unit Masonry. This is because the two components, portland cement and lime, are each covered by their respective specifications: ASTM C150, Standard Specification for Portland Cement, and ASTM C207, Standard Specification for Hydrated Lime for Masonry Purposes.
For consistency and convenience, most portland lime blends are premixed and added to sand and water at the job site to produce mortar. However, some contractors prefer to mix all ingredients at the job site.
Masonry cement consists of portland or blended cement, plasticizers, and an air entraining agent. Air-entraining agents protect mortar from freeze-thaw damage and provide additional workability. The specific components of masonry cement may vary depending on the manufacturer and local construction practices. ASTM C91 defines masonry cement by physical requirements and performance properties rather than ingredients.
For consistency and convenience, most portland-lime blends are premixed and added to sand and water at the job site to produce mortar. However, some contractors prefer to mix all ingredients at the job site.
Type N is for general use in most mortar and stucco applications. Types M and S are specified when higher strength is required in load-bearing or below-grade walls.
Lehigh Masonry Cement Type N Mortar
70 lb. Bag
Masonry cement consists of portland or blended cement, plasticizers, and an air entraining agent. Air-entraining agents protect mortar from freeze-thaw damage and provide additional workability. Type N is for general use in most mortar and stucco applications. ASTM C91 defines masonry cement by physical requirements and performance properties rather than ingredients. Proportioned and packaged under laboratory-controlled conditions, Lehigh masonry cements take the guesswork out of mortar mixing and ensure consistent results from batch to batch, project to project.
Lehigh masonry cement products fit any application or need: masonry cement, mortar cement, portland cement-lime, white masonry cement and colored masonry cement.
At their simplest, masonry cements are a mixture of portland or blended cement and a plasticizing material, such as hydrated lime, which retains water and lends "workability" to the mortar mix – a measure of ease of use for masons. Other components enhance key properties, such as setting time, durability, strength, water resistance and color.
Masonry cement is mixed with sand and water to produce mortar for brick, block and stone construction. Mortar is the bonding agent that forms individual masonry units into a wall. Other applications include stucco and cement-based plasters.
Lehigh Hanson's masonry cements consist of portland or blended cement, plasticizers, and an air-entraining agent. Air-entraining agents protect mortar from freeze-thaw damage and provide additional workability. The specific components of masonry cement may vary depending on the manufacturer and local construction practices. ASTM C91 defines masonry cement by physical requirements and performance properties rather than ingredients.
Masonry cement Types N, S and M are covered by ASTM C91, Standard Specification for Masonry Cements.
Most masonry cements are preblended, ready to be mixed with sand and water at the job site. Premixed masonry cements offer consistent and uniform performance. Convenience is also a factor.
An alternative is to mix all the individual ingredients – cement, lime, sand and water – at the job site.
The American Society for Testing and Materials (ASTM) designates both mortars and the masonry cement used to produce them by types, which are primarily based on strength.
Traditionally, alternating letters of the words "mason work" became the letters used for five types of mortar: MaSoN wOrK, with Type M being the strongest and Type K the weakest.
ASTM now designates three types of mortar: Type M, Type S and Type N. Types O and K are no longer common in construction and are used primarily for restoration of historic masonry structures.
Type N is for general use in most mortar and stucco applications. Types M and S are specified when higher strength is required in load-bearing or below-grade walls.