DESIGNMIX Professional-Grade Mortar Mix Type N is designed for use above grade. Type S mortar has great durability that is why it is highly suitable for locations where the masonry is in contact with the ground, such as paving or shallow retaining walls. Although commonly used in setting bricks, Type N can also be used for repointing newer brickwork. Type M; Type S; Type N; Type O; Type K; Readily Available Mortar Colors. It is great for semi-soft masonry and has a flexibility to it that makes it not crack as easily as the stronger mortars. For general use of mortars for brick and block, including brick veneers, in non-load bearing applications. Gauged mortar is a type of mortar where cement and lime both are used as binding material and sand is used as fine aggregate. Type O and Type K are recommended for most historic masonry applications. Type S has high compressive strength (1800 psi) but adds high tensile bond strength. Type "S" is "structural", which means it will bond tightly to masonry (brick, stone, cast stone, etc. Type S Mortar is the ideal product for masonry at or below grade. Type N is a medium compressive-strength (750 psi) mortar made of 1 part portland cement, 1 part lime and 6 parts sand. It also provides increased resistance to freeze-thaw deterioration. Compressive strength, bonding and flexibility work together while holding mason… Natural (No color added) Light Buff; Red; Deep Red; Super Black; CUSTOM COLORS AVAILABLE. Mar 10 2014 type n a common mix for tuckpointing and laying softer materials type n is the most flexible and resilient 750 psi the recipe 1 part portland 1 part lime and 6 parts sand furthering the concentration of lime in the mix does take away from the structural strength aspects but in turn offers more resilience and flexibility Type N is also the preferred mortar mix for soft stone masonry as its flexibility helps to prevent cracks in the stones that stronger mortars might actually cause. 9: Type S mortar. Type S mortars are required to have a minimum of 1800 psi and their mixes usually give you strengths ranging between 2300 and 3000 psi. In addition, it has higher bonding and lateral strength than type N, which makes it a good choice for resisting moderate soil pressures below grade. S contains 2 parts portland cement, 1 part hydrated lime and 9 parts sand, and yields maximum flexural strength to fight wind, soil pressure or earthquakes. • Type S: General all-purpose mortar with high flexural bond strength; 28-day compressive strength of 1,800 psi. ), while type "N" is "non-structural", which means it won't bond tightly to masonry. It is a mortar that can be used for exterior structures such as a patio, as it is used for exterior walls that are considered below grade because it is stronger than (type N). Type N mortar mix is a medium-strength mortar (750 psi) recommended for exterior and above-grade walls and interior load-bearing walls. However, masons are not aware of this. I am trying to match mortar on a 50's stone house and it is darker than the type s mortar we used on the foundation. Type N mortar, also known as the general purpose mortar, is medium strength. Using the correct Mortar is key to completing your project correctly. Basically, it is a lime mortar where cement is added to gain higher strength. Mortar (Type S)… This is a mortar that has a minimum of 1800 psi. Even though it is usually specified for those kind of jobs, it offers great quality. More … … Type K mortar has the lowest compressive strength @ 75 PSI., The recipe: 1 part Portland, 3 parts lime, and 10 parts sand. In general, Type S mortar is used for structural or foundation work, but Mark finds that the Type N works better in this application because it’s softer and will accommodate some movement in the foundation. Type N Vs Type S Mortar. Type N: For exterior, above-grade walls . We Can make it!!! Each mortar mix has a specific portland cement, hydrated lime and sand proportions that keep each type of mortar apart from the other. I noticed that in the December 2005 version this language was modified. Type M, S, N, O, K, and L. Type M is the strongest and hardest and contains the highest percentage of Portland Cement while Type L has no Portland Cement and is the softest. Type N mortar withstands high heat, low temperatures, and severe weather and is considered to be a general-purpose mix. Available in type M mortar, type S mortar and type N mortar which all meet ASTM C 270, ASTM C 1714 and CSA A179 requirements. PROPORTIONING MORTAR. Type S mortar is used in structural load-bearing applications and for exterior applications at or below grade. Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. Type N mortar has a compressive strength of about 750 PSI, which is ideal for use with semi-soft stone or masonry applications. Here in Texas, where we have active soils, I use "N" (because if "Z cracks" develop in a brick wall, the masonry can be raked out and replaced) for everything except for attaching cast stone. 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