Type N Masonry Cement or Type S Masonry Cement can also be used in parging and stucco work. However, masons are not aware of this. This helps to prolong the integrity of old or even ancient bricks in historic structures. Compression or compressive strength is the capacity of a material or structure to withstand loads that are placed on top of the mortar which can cause it to reduce in size or compress. While mortar’s first and most important job is being the glue that holds your project together, It’s not the only job mortar does. The higher bond and compressive strength numbers make type S able to withstand soil pressures, wind, and seismic loads. 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. It also works well when used to construct brick patios, pavements, and retaining walls. Pro Tip: We recommend using type S mortar for veneer work. These components are proportioned at the cement … Recipe: Type S contains 2 parts Portland cement, 1 part lime and 9 parts sand. It is designed to be used with clay, concrete and stone masonry bricks. Interior work: Type O is great for interior masonry work. Types of Masonry Cement & Mortar CEMEX’s Masonry Cements are produced in Type N Masonry Cement, Type S Masonry Cement and Type M Masonry Cement strength levels for use in preparation of ASTM Specification C-270 Type N, M or Type S Masonry Mortar, respectively without any further additions. Masonry is very stiff once the mortar completely hardens which makes it susceptible to cracks. Because some can flex and absorb a certain amount of movement and some can’t, choosing the right type can help protect the structural integrity of your project. They can happen from a number of common causes like moisture, weather, movement, or other issues. If you have any questions or comments e-mail us any time. This tough, durable mortar is just right for masonry foundations, manholes, or sewers. Each mortar type is specially made to fit a certain application. Type N: exterior and above-grade walls, chimneys. Type S has high compressive strength (1800 psi) but adds high tensile bond strength. And other details are also important. Of course, these guidelines should be used with good judgment. KING 1-1-6 CREAM mortar complies with Table 6 of CSA-A179-14 for Type N mortar with addition of water on-site. There’s less waste because you only use as many bags as you need. Recipe: Type O is made of 1 part Portland cement, 2 parts lime, and 9 parts sand. Type S Mortar is the ideal product for masonry at or below grade. Usually, a Type S mix has a high compressive strength of between 2,300 and 3,000 psi. Bonding properties aren’t just about strength though, but also the extent of bond. Package sizes. N/A. The proportions are more accurate than mixes you make yourself unless your a trained and experienced mason. 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. There are five main types of mortar: M, S, N, O, and K. Each type is classified by it’s bonding properties, flexibility, and compressive strength. Table 1 is a general guide for selection of mortar type. Recipe: Type K is made from 1 part Portland, 3 parts lime, and 10 parts sand. Type N mortar withstands high heat, low temperatures, and severe weather and is considered to be a general-purpose mix. And the pros and cons of each. Type S mortar is used in structural load-bearing applications and for … It is important to start your next project with the correct product for the job. It’s more elastic than a high strength mortar, which helps to prevent cracking and spalling of adjacent masonry units. Here are some projects that typically use type M: Type O mortar mix has a fairly low compressive strength, rated at only about 350 psi. Many DIY pros and contractors working with stone, brick or some other veneer always end up asking the same question. Type N mortar can endure high temperatures and rough weather, thanks to its composition of one part cement, one part lime, and six parts sand. That stuff is DEADLY nasty! Which is recommended for each application. But it comes in different types that are each specially formulated for a different purpose. Good for stacked walls. With thin brick and stone veneer work, the bond between the stone or brick and mortar is the most important property to consider when choosing a mortar. It has a high compression strength and it’s easy to work with. Mixing: Place 2/3 of the required mixing water and half of the sand in the mixer. These types of walls are structural which means weight is placed on top of them. Type O and Type K are recommended for most historic masonry applications. Sakrete Type N Mortar Mix is only meant to be used for above grade applications. Because stronger is not always better. The last thing you want it to see your work damaged or destroyed because you chose the wrong mortar type. Opposite from Type M and Type S, Type N can be used for load-bearing exterior walls that are above grade or reinforced interior. Mortar is an all around building material that’s an essential part of construction. You don’t need to worry as much about pulling them apart because they’re generally held together by rebar or other metal ties. After you install thin brick or stone veneer you grout the joints with mortar. Although commonly used in setting bricks, Type N can also be used for repointing newer brickwork. You may, however be able to add fireclay to type S mortar to make refractory mortar. A certificate attesting to this will be furnished by the manufacturer upon request. Recipe: Type M contains 3 parts Portland cement, 1 part lime and 12 parts sand. Type N mortar includes portland cement -- typically 1 part portland cement, 1 part hydrated lime, and 6 parts sand. 1137-85) Glass Block Mortar (No. PAINTING. And it should also have the right properties in its workable state so that it’s easy to work with. Which Mortar Should I Use? This type is ideal for anything that is exposed to severe weather and high heat. Type N is also the preferred mortar type for soft stone masonry because its flexibility helps to prevent cracks in the stones that stronger mortars can actually cause. High bond strength provides resistance to cracking. Compressive strength, bonding and flexibility all work together to hold masonry units firmly in place for a very long period of time. Portland cement adds strength to mortars, but limits flexibility. For example, if your installing stone veneer then your mortar needs to have a lower compression strength than the stone. Sakrete’s Mortar Mix Type S is a mason-grade pre-blended mixture of sand and masonry cement or sand, lime, and portland cement. If you’re looking for the right mortar mix, consider type N. It’s the best choice for general applications and likely the perfect choice for your project. Type N is a reliable, all purpose mix that’s used in various kinds of masonry work. Recipe: Type N is made of 1 part Portland cement, 1 part lime, and 6 parts sand. Sometimes it’s used as a finished product that you see. Refer to paint manufacturer directions for application instructions. 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. Metrojersey.com NJ's #1 Web Directory Type S contains 2 parts portland cement, 1 part hydrated lime and 9 parts sand. Meets the requirements of ASTM C270 types S, N, or M. Re: Type S mortar vs Portland cement No. dusty PS - I mixed my own 1:3:1:1 for setting bricks, but after the first day I cut the lime down to 1/4 part. While this mix is great for supporting heavy loads and below grade foundations, it provides relatively poor bonding and sealing properties. All rights reserved. How they’re best used. 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 N, S, O and M. Below we’ll discuss each type in detail along with it’s most common usage and some pros vs cons. Type N mortar mix, which contains one part portland cement, one part lime and six parts sand, is a medium compressive-strength mortar of at least 750 psi and can achieve 28 … Type N – General all purpose mortar with good bonding. One property that’s often overvalued is compressive strength. Type N is a medium compressive-strength (750 psi) mortar and can achieve 28 day strength between 1500 and 2400 psi. Mix the cement and sand. Type "S" is "structural", which means it will bond tightly to masonry (brick, stone, cast stone, etc. Load bearing units require Sakrete Mortar Type S. - Non load bearing require Sakrete Mortar Type N. - and if it’s just only repointing then Sakrete mason mix is … Whether you’re a builder, mason, or homeowner working with veneer, you’ll eventually have to buy some mortar. Choosing the right type of mortar depends not only on the mix’s properties, but also what it’s being used for. It’s also great for thin brick or stone veneer work because of it’s higher bonding strength and stickiness. Masonry Cement . For example some designers tint the grout color for stone veneer rather than keeping it natural. Ideal for laying brick, block, and stone in load-bearing walls for above- or below-grade applications. Each job requires a mortar that balances work requirements with the performance of the completed project. What type of building material are you using? Type S mortar is designed for “below grade” or underground projects. This type of mortar performs well while fighting soil pressure and wind, or while under seismic conditions. A high bond strength is ideal for exterior projects that need to withstand the elements. Here are some projects that typically use type S: A type M mix has the highest highest amount of Portland which gives it a minimum of 2,500 psi of compressive strength. Some mixes need to contract and expand in response to changes in temperature. It has a very low compressive strength of only about 75 psi. 3. Real stone veneer installed with type S mortar over wire mesh and a good moisture barrier. Lafarge Types N, S and M Mortar Cement will result in Type N, S and M Mortar (respectively) meeting the requirements of IBC 2103.7(2), UBC 21-15, ASTM C 1329, and ASTM C 270. By varying the amount of each ingredient you can vary the properties of the mix. Type S has high compressive strength (1800 psi) but adds high tensile bond strength. Both interior and exterior masonry work is a beautiful look that’s low maintenance, extremely durable, lasts decades and is proven to increase home value, if it’s done in the right way. Type S: masonry foundations, manholes, retaining walls, sewers, and brick patios and brick pavements. What they’re designed to do. Developed by Search Marketing Resource LLC. Lafarge masonry cement eliminates the need to field proportion materials. However we can narrow it down quite a bit and tell you which mortar type is generally best for each of the most common applications. When it comes to foundation work compression strength and some flexibility are key. Below is a list: Thin brick and stone veneer: Type S is what we recommend here. Because without the right type of mortar your work will suffer. Choosing the right type of mortar mix depends not only on the mix’s properties, but what it is being used for as well. Type S Mortar is the ideal product for masonry at or below grade. The amount of surface contact required between the mortar and stone veneer or other masonry unit is why extent of bond is another key factor that needs consideration. Type N has a medium compressive strength of 750 psi and can achieve 28 day strength between 1500 and 2400 psi. It’s important to choose the right mortar for the job. Used to build stacked walls or veneer work. Type N mortar is a general-purpose mortar that provides good workability and serviceability. Should You Prime Concrete Before Painting? This mortar mix has a medium compressive strength. If you choose a type with a compressive strength that’s too high, you may end up with cracks and exterior projects that get worn down by the freeze thaw cycle. Below is a list of properties you should consider when choosing mortar. 5. Stacked real brick and stone veneer with a stone patio floor. Type S mortar is already a mixture of sand, portland cement and lime. For most small projects a pre-mixed mortar is more cost effective than mixing it yourself even though the bags are more expensive than the ingredients they hold. 1102) Veneer Stone Mortar (No. Some mortar needs to harden strong yet have some flexibility, allowing it to handle lateral loads. Type N is described as a general purpose mortar mix and can be used in above grade, exterior and interior load-bearing installations. White; Tan; Deep Tan; Dark Buff; Light Brown; Golden Brown; Deep Brown; Dark Brown; Pink; Maroon; Green Orange; Light Chocolate; Dark Chocolate; Not on the list? Soft stone masonry: Type N is what we recommend. Masonry/Mortar Cement Blend (Types S, N, & M) QUIKRETE® Masonry/Mortar Cement Blend (Types S, N, & M) is a high strength Commercial Grade dry pre-blended mixture of sand and cements specially selected for masonry applications. We Can make it!!! In this article we’ll review each type of mortar. Mortar mixes are classified according to a few key properties which include compressive strength, bonding strength and flexibility. Type N mortar mix has a medium compressive strength and it is composed of 1 part Portland cement, 1 part lime, and 6 parts sand. It’s a poor choice for exposed, above grade work like brick walls or stone veneer. It consists of a mixture of sand, lime and Portland cement in the proportions of 3, 1 and 1 respectively. Masonry cements are composed of portland cement, plasticizers, and air entraining additives. And when in doubt, hire a professional. When you need something stronger than type N consider type S. Type S mortars have a minimum of 1800 psi but typical mixes usually give you between 2300 and 3000 psi. No single type is best for all applications. Using the correct Mortar is key to completing your project correctly. Type N (min 750 psi): Type N mortar is a general-purpose mortar with some flexibility. Pro Tip: We recommend type N for most stacked brick or cmu block walls that are above grade. What type of weather will your finished work need to withstand? All masonry projects are unique and must adhere to local building codes and should be built as per the designers specifications. The mortar needs to bond strongly yet be able to flex in response to lateral loads as well as contract in response to changes in temperature. 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. (It’s a sticky mess.) So how do you choose the right mortar type for your project? Higher extent of bond increases durability and water resistance which makes it ideal for veneer work. This is generally measured in PSI or pounds per square inch. Easy to work with. For large jobs you can save a lot by mixing your own mortar however for smaller projects it’s better to buy pre-mixed bags.Mortar mixed at the factory is more expensive but there are a few advantages to using it. As with any commonly used construction materials, some slight variations of type N mortar exists. Even though it is usually specified for those kind of jobs, it offers great quality. 1136-80) Mason Mix Type ‘N’ (No. Things like high lateral loads from wind or seismic activity possibly requiring a mortar with higher flexibility. A combination of factors should go into your mortar selection based on the job your doing. Mortar mixes are classified according to their compressive strength, bonding properties and flexibility. This mortar’s high compression strength of around 750 psi also allows it to be load-bearing if necessary. It’s hard to do masonry work without it. If you do decide to mix your own, make sure you only use clean sand and clean water. The higher bond and compressive strength numbers make type S able to withstand soil pressures, wind, and seismic loads. Type N mortar mix is a medium-strength mortar (750 psi) recommended for exterior and above-grade walls and interior load-bearing walls. Compressive strength, bonding and flexibility work together while holding masonry units in place. Stronger types have less flexibility and are generally harder to work with. Type K mortar has the lowest compressive strength @ 75 PSI., The recipe: 1 part Portland, 3 parts lime, and 10 parts sand. Stacked brick or cement below grade block walls (cmu): Here we like Type S. It’s stronger than type N so it holds up better to pressures from things like soil. Because of these properties, type S is what we recommend for most below grade applications such as masonry foundations and sewers. It is also associated most commonly with soft stone masonry. Color, flexibility, easy to work with or other properties should be considered. It’s used primarily for interior work and above grade, non load bearing walls. Type K – Extremely low strength used primarily for historical restoration work. Whichever mortar type you decide on, Bedrock Industries has the right product for any job. There really is no one size fits all best mortar type so make adjustments based on the type of work your doing and the material your using. Other problem areas may include below grade durability issues or inside retaining walls. In particular, type N mortar sees a lot of use in soft stone masonry projects due to the aforementioned properties. All built with different mortar types. It’s great for repointing brick and similar repair work on existing walls because of its consistency and how easy it is to work with. Type N: For exterior, above-grade walls Type N is a medium compressive-strength (750 psi) mortar made of 1 part portland cement, 1 part lime and 6 parts sand. But you should choose a type with a compression strength lower than that of the product you’re installing. Extent of bond is the level of contact between the mortar and stone, which is improved when a mortar is easy to work with. TECHNICAL DATA . Compression strength is important to consider for a few key reasons. It’s the glue that sticks stone and brick veneer to the wall, holds together bricks and concrete blocks, fills joints, and provides structural support to all sorts of masonry projects. Type S Masonry mortar is recommended for use in all masonry be-low grade as well as in exterior load bearing walls requiring high strength. 1). A more uniform mortar can be obtained when only one blending operation is involved. SAKRETE Mortar Mix, Type N conforms to CSA A179-14 when used as directed. Restoring historical buildings: Type K. For this type of work type K is the best choice. Stacked brick or cement above grade block walls (cmu): For this we prefer type N It has a good compression strength and it’s easy to spread which makes it great for both installing the masonry and grouting the joints. Type N mortar is not a lime mortar -- if by lime mortar you mean a traditional mix of sand, lime, and water. 3 parts damp, loose brick sand . 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. So although the color won’t affect how durable your finished product is, sometimes it will impact the finished look. Here are some projects that typically use type O: Type K mortar is rarely used for new construction but is sometimes used for restoration work. If you’re working on an outdoor project, keep in mind that lighter shades will show dirt more easily than a dark color. To help the mortar bond better with the stones, Mark also added C-21 All Acrylic cement modifier admix, which is manufactured by Silpro. Copyright © 2020 Bedrock Orlando. Add water until the mortar is of suitable “buttery” consistency. Different types have varying degrees of flexibility. Mortar comes is types. 1136-86) Mortar Mix (No. Choose a type that’s easy enough to work with. Because sometimes masonry needs to have a little flexibility and a super stiff mortar just won’t work. Kafka Granite’s masonry experts recommend type N mortar for use on exterior and above-grade projects that are exposed to severe weather and high temperatures, as well as on interior, load-bearing installations. It is also the preferred mortar mix for soft stone masonry. Type M; Type S; Type N; Type O; Type K; Readily Available Mortar Colors. More information here: Repointing. Available Mortar Types. But you need the right mortar type for the job. Type S mortar is a medium-strength mortar (minimum 1800 psi). It has higher tensile bond strength and performs well in the outdoors. Even though it is usually specified for those kind of jobs, it offers great quality. Type S is commonly used for new construction and many repairs. Select a type with the lowest compressive strength that meets the project requirements. Bonding strength is measured in two main ways: Pro Tip: Use a mortar that meets the minimum bond strength requirements for your project. Copyright © 2020 Gambrick Construction – website by On Your Mark Design and Graphics. . For applications requiring conventional Type S Mortar, please refer to SAKRETE Mortar Mix, Type S. SAKRETE Mortar Mix, Type N is a pre-blended, ready-to-use, Type N Mortar made of masonry cement and natural mortar sand. Stickier than other types which makes it ideal for veneer but it’s also used for stacked walls. Type ‘S’ (No. Higher strength mortars can actually cause damage to a softer stone. It has a high bonding strength and it’s sticky which is perfect for sticking stuff to a wall. We recommend type N mortar for use on exterior, above grade projects that are exposed to severe weather and high temperatures, as well as on interior, load bearing applications. Even though looks should be a secondary concern to structure, the color of your mortar is still important. Type S – General all purpose mortar with higher bond strength. First, consider the material you’ll be working with and the kind of work you’ll be doing. The force required to break the bond between two materials held together by mortar. The ingredients will be more evenly distributed throughout the mix unless you have your own cement mixer. Here are some projects that typically use type K: Masonry gate pillars built with mortar and real stone veneer. Repointing: Type N or type O are what we use for repointing. Pro Tip: Mortar is caustic, so always wear gloves and other safety equipment when mixing or working with mortar. If your mixing the mortar yourself then you can vary your ingredients based on the strength requirements you need. Using Type N is also common for the installation of block or brick and for above grade stucco where a weaker material is needed. Bond strength is the force required to separate the mortar from the brick. Once you understand what your finished work needs to do you can choose the type that’s best. DO NOT use masonry cements for concrete jobs. This mortar is composed of White Portland Cement, Type S hydrated lime, an air entraining agent, and masonry sand with controlled grain size. Mortar selection should also be based on properties like durability, bond strength, flexibility, moisture resistance and how easy it is to work with. But its minimum compressive strength is lesser than of Type S Mortar, its 750 psi. 1). 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