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Type M Masonry Cement are commercial-grade cement that can be used, when mixed with sand, to create high strength mortar mixes. This makes it poorly suited to many exposed applications. Type N mortar is a medium-strength mortar with a 28-day compressive strength value of 750 psi. Type O5. This article explains some of the important points to consider while selecting the right mortar for masonry construction. As per ASTM C270, there are mainly five types of mortar that are standardized to meet a variety of masonry applications. Exceeds ASTM Specs C 387 and C 270 for Type S Mortar. Miscellaneous - Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more; Related Documents . As per ASTM C270, there are mainly four types of mortar that are standardized to meet a variety of masonry applications. The standard formulation meets or exceeds ASTM C-270 Type “M” specifications. This digital transformation requires different processes and dedicated process support tooling. In Canada, and I'm not sure of elsewhere, we have a funny situation with our masonry code. They are: Type N mortar is a medium-strength mortar with a 28-day compressive strength value of 750 psi. It also has a higher resistance to freeze and thaw. Type M mortar This uses a 3 / 1 / 12 mix and results in a mortar with a 2,500 psi compressive strength. The names for these mortar types, developed in 1954, were based on alternating letters of the phrase "MASON WORK". Click Here to join Eng-Tips and talk with other members! Type M is used for below grade load-bearing masonry work and for chimneys and brick manholes. In case the engineer focuses on the mortar selection, the architect may give importance to the appearance of the masonry, while the mason contractor could be concerned about how workable the product is to bring maximum productivity. There are different types of mortar with unique purposes. Type M mortar should be used when the structure has to withstand high gravity and/or lateral loads. The Type N mortar mix is made from 1 part Portland cement, 1 part lime, and 6 parts sand. Below-grade applications like construction of retaining walls, sewers, manholes, masonry foundations, and at grade structures like walkways, brick patios make use of type S mortar mix. This white paper reviews market trends that are transforming embedded software development in the automotive industry. I don't recall the paper, but, there was some work done about 40 years back on the effects of the mortar joint thickness. Masonry Mortar is a blend of Portland Cement Type II/V ASTM C150, hydrated lime ASTM C207, and washed masonry sand. It is less workable compared to other mortar types and has less adhesion and sealing properties. The guidelines are mentioned as per ASTM standards. This allows it to be used in a variety of below-grade applications, including driveways, retaining walls, and … A general idea to follow while selecting mortar for masonry works are: The ASTM standards have provided some specifications and recommendations that can be followed for identifying the materials and products. Use to lay brick, block and stone or as underlayment for slate, marble and tile. The Appendix of ASTM C270 provides a reference to which mortar type should be used in some general applications. Country Mortar Types and Uses: A Quick Guide on How to Choose What You Need (972) 217-0296 Mortar is vital in masonry construction as they bind bricks and blocks. Testing by independent laboratories available upon request (Type S >1800 PSI) (Type M >2500 PSI). ANSWER: Compressive Strength. Since it closely mimics the strength of stone, it will not fail before the stone itself fails. It has a higher ability to withstand soil pressure and dynamic loads like wind and earthquakes. Similarly, if 3,050 psi (21.0 MPa) concrete masonry were used in conjunction with Type N mortar, the maximum f’ m that could be used in design would also be 2,000 psi (13.8 MPa). 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. Use one bag of Coosa Light Masonry Cement with 2 ¼ to 3 cubic feet of damp, loose, masonry sand. Type M mortar mix is the highest strength mortar mix with the highest amount of Portland cement. Type M. The last of the four most common mortar types is type M. This type is considered the strongest on its own, with a compressive strength of approximately 2,500 psi for most mixes. Bricks - Quantity and Mortar Consumption - Estimating required quantity of bricks and mortar ; Compression and Tension Strength of some common Materials - Common materials and average ultimate compression and tension strength type S mortar per ASTM C270 is 1800 psi, one can achieve higher masonry strength than the mortar strength. Points to remember for mortar in brickwork construction. Type S. Type S mortar is a medium strength mortar that cures to a minimum compressive strength of 1800 psi. Masonry cement is so much easier to use that you don't often find anyone mixing mortar from scratch at a job site anymore although it is a cost effective way to do it. Sand 4. Recommended water is approximately All Rights Reserved. Mortar Type Minimum, MPa (psi) Minimum, % Maximum, % M 17.2 (2500) 75 12 S 12.4 (1800) 75 12 N 5.2 (750) 75 14* O 2.4 (350) 75 14* Table 3. Type M mortar is the highest strength mortar (minimum 2500 psi) and should only be used where significant compressive strength is required. This white paper describes the digital transformation challenge and suggests an architecture-driven approach to develop on-board software in a rapidly evolving industry. The current tolerances are still to loose for good masonry. It is used for projects that need to withstand extreme gravitational forces and hold large lateral loads. The mix is recommended for heavy loads and below-grade applications. Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people. 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. However, the owner, far from everyone, may have a demand for a quality-based and budget-friendly project. Type M mortar has the highest strength. Contribute to the serviceability of the masonry. He's giving us 2000 psi regardless because that's the lowest he's got, so we may as well use the extra strength and be able to back off the design somewhere else. It is not a good choice for places with high winds. Already a Member? The minimum compressive strength of Type M Mortar is 2500 psi. Type N2. Registration on or use of this site constitutes acceptance of our Privacy Policy. dik had a good example regarding the research on mortar and grout and the relationship to masonry units. Promoting, selling, recruiting, coursework and thesis posting is forbidden. A better understanding of materials used in masonry construction, the process, and the final product is essential for choosing the right mortar. This whitepaper examines common DVE challenges and some promising solutions. Now, the cheapest way to increase the strength is to add water to the typical mix, but other properties are affected. Its strength is almost equivalent to stone, hence recommended to be used in external places like driveways, retaining walls, springs and fountain areas, walls capable to bear a heavy load. The different areas of construction where the Type M mortar mix is employed are retaining walls, driveways, and foundations. Portland Cement 2. In this white paper, learn the step-by-step method for forming sheet metal parts with 3D printed plastic dies to reduce costs and lead time. Type M. A type M mix has the highest highest amount of Portland which gives it a minimum of 2,500 psi of compressive strength. It is a medium-strength mortar minimum 12.4 MPa (1800 psi) with high bonding ability. Designed for use in structural masonry applications Use for block, brick and stone constructions and tuck pointing Exceeds the performance requirements of … In load-bearing masonry, mortar compressive strength may have some importance, but mortar only contributes a small amount to masonry assembly compressive strength (f’ m).). But altogether, a balanced perspective must be followed during the selection of the mortar. The highest-strength mortar (2,500 psi) is Type M mortar, which is only used where considerable compressive strength is needed. Table 1 is a general guide for selection of mortar type. How to Inspect a Structure Using Acoustic Emission Testing? While type M mortar provides at least 2,500 psi of compressive strength, it offers relatively poor adhesion and sealing properties, making it unsuitable for many exposed applications. It is a rare mortar mix used in construction, mainly limited to restoration or unique specifications. Pre-blended type M mortar for commercial-grade use. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Also for pointing up or stuccoing old and new walls. Easy to mix, just add water. Become VIP Member. Meets the requirements of ASTM C270 types S, N, or M. The block manufacturing equipment and manufacturing methods have caused the typical strengths to go up considerably. • Due to the procedural differences between ASTM C270 and C780, Mortar Average Compressive Strength Minimum psi (MPa) Water Retention Minimum % Air Content Maximum % Type M 28 Days 2500 (17.2) 75 12 Type S 28 Days 1800 (12.4) 75 12 The Recipe: 3 parts Portland, 1 part lime and 12 parts sand. Looking for confirmation of my understanding of these issues and recommendation on further references on the topic... Part of the basis is just fabrication quality has gone up and higher strength is more in demand than it used to be. Become VIP Member, Do you need to remove the ads? Type M4. I also found it is suggested weaker mortar may be better. Type M – Requires a 2500 psi/full cure Type S – Requires a 1800 psi/full cure Type N – Requires a 750 psi/full cure Type O – Requires a 350 psi/full cure Type K – Requires a 75 psi/full cure Note: Type M, S and N are the most commonly used mortar types. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. it is used for grade applications with normal to moderate loading. PROMIX® Type “M” Mortar is a contractor grade mortar designed for laying concrete masonry units, brick and manufactured stone products. My understanding of the explanation for this is that mortar strength has been found through research to not play a major role in the strength of the masonry and that one explanation may be the aspect ratio of the lab mortar cube sample versus the thickness of the mortar is underestimating its strength. Portland cement 5.0625 cuft Lost your password? It has a soft texture, which is a good choice for restoring masonry of historical or ancient buildings. You will receive a link and will create a new password via email. VIP members get additional benefits. Quikrete 80 lbs. It’s a poor choice for exposed, above grade work like brick walls or stone veneer. It is used for exterior walls and above-grade walls, which are exposed to severe weather conditions. By joining you are opting in to receive e-mail. The “ASTM C270- Standard Specification for Mortar for Unit Masonry” must be referred to obtain the project specifications. Mortar Strength vs. Masonry Strength and ACI 530 changes, Structural engineering general discussion Forum, White Paper - Sheet Metal Forming with 3D Printed Dies, White Paper - Process Comparison: SLA vs DLP vs Micro SLA, White Paper - Applying an Architecture-Driven Approach to Onboard Software Design, White Paper - Degraded Visual Environment (DVE) Meeting the Challenge. Hydrated Lime 3. Its application is more relevant for interior and low structural applications. The consistency and ease of applying type O mortar mix make it suitable for pointing work and repairing existing structures. A single mortar type cannot provide the highest performance in all applications. Sheet metal forming is the most cost-effective forming procedure today for manufacturing parts at large quantities. Fig. To get 1 cuyd of M mortar, you need 27 cubic feet of the components in a 3 to 1 to 12 proportion. PROMIX® Type “M” Mortar is a pre-blended product using Portland Cement, lime and well graded masonry sand. 9: Type S mortar In this whitepaper, we will compare laser-based Stereolithography (SLA), Digital Light Processing (DLP), and Projection Micro Stereolithography (PµSL) and examine how each performs against the ?ve factors. This table shows the recommended mix proportions and compressive strength for various types of mortar. Method for Preconstruction and Construction Evaluation of Mortar for Plain and Reinforced Unit Masonry. If you’re wondering what mortar types your masonry units need for your home, then you came to the […] Solutions that allow aircraft crews to navigate in DVE are a critical need and a key area of interest for military and commercial applications. Type M mortar is generally used with stone, since it’s very strong and won’t fail before the stone does. Please enter your email address. A single mortar type is not the best choice for all applications. m equal to 1500 psi with Type S mortar using the unit strength method. Even though it's part of the design, mortar is vastly underrated for strength... with the confinement in a mortar joint the strength increases dramatically. This type of mortar is generally used with hard stone. 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. The mix is made for strength ranging from 2300 to 3000 psi. Void Forms in Foundation Construction: Their Types and Applications. I think the f'm of 1500 psi stems from the ASTM C90 absolute minimum block strength of 1900 psi with type M or S mortar (ACI unit strength method). They are:1. Now, the handing equipment is faster and more gentle and the blocks do not have some of the bulges as older units. It is also used as a mortar mix for soft stone masonry. They provide an overall compressive strength of 1800 psi with higher tensile and bonding strength. Know one of the primary masonry suppliers in our biggest market told us that we shouldn't bother specifying 1500 psi anymore. The members of the construction team may have different perspectives on these concepts and the importance of different materials. A single mortar type alone cannot define the quality of the mortar. Copyright © 1998-2020 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. - ASTM standards are very slow and cumbersome to be changed. According to the Code this would require a Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. How to Choose the Right Mortar as per ASTM? In example, per ACI 530-13 by specifying block with 2000 psi cmu strength and using type S mortar one can use a f'm=2000 psi. While this mix is great for supporting heavy loads and below grade foundations, it provides relatively poor bonding and sealing properties. While this mix is ideal for heavy loads and below-grade applications such as foundations, it provides relatively poor adhesion and sealing properties. INSTALLATION Add OBP Masonry Mortar to clean potable water and mix to the desired consistency. Related Topics . How to calculate the quantity of water for a given concrete mix? Type-S Masonry Mortar Mix is used to set clay or concrete roof tiles, laying brick, concrete block or stone, stucco detail, stone facings and in the construction of chimneys, walls, planters, outdoor grills. Sorry, you do not have permission to ask a question, You must login to ask question. Water We'll also take a good look at masonry cement. Type M. Type M mortar cures to a minimum strength of 2500 psi and is the strongest type of mortar. *Eng-Tips's functionality depends on members receiving e-mail. Type M — The strongest (Highest PSI @ 2500) of the group, this type is most commonly used for load bearing walls and below grade applications, such as foundations or retaining walls. Login. Type K mortar has the lowest compressive strength. It has a low compressive strength value of 75 psi. VIP members get additional benefits. How to Make Construction Entrances/Exits? It is also used as a mortar mix for soft stone masonry. Recently on projects, some designers are now specifying a higher f’ m, i.e., 2000 psi, 2500 psi and 3000 psi with Type S mortar. This cement is designed for very heavy loads and has higher compressive strength than most masonry cements. PROMIX® Type “M” Mortar is a pre-blended product using Portland Cement, lime and well graded masonry sand. - In the past (when the basic ASTM standards were written), higher cement contents were needed to get the green molded block into the curing areas. Type M is preferred for use with natural stone because it offers similar strength to that of stone. It's almost difficult to get 1500 psi in some areas of the country now. 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It is used for exterior walls and above-grade walls, which are exposed to severe weather conditions. Compression strength of 2,500 PSI. I have also noted there is a lot of discussion on the proportion vs. property specification in ASTM C270 leading to question of lab vs. actual field mortar strength. It is used for exterior walls and above-grade walls, which are exposed to severe weather conditions. Type M Mortar. The selection of mortar influences the quality of the construction process and the final masonry product. Most block strength is far stronger than 1900 psi so it's a no-brainer to go up at least to f'm of 2000 psi. The mortar selected for masonry construction must: The type and material of mortar are selected by considering the requirements mentioned above. Type M. With the highest amount of Portland cement in its makeup, type M mortar mix provides at least 2,500 psi of compressive strength. Mortar is made of four basic ingredients: 1. Pre-blended for consistent quality. Type M used in below ground applications for heavier load bearing applications, usually for foundations to support , and has a compressive strength of 2,500psi. The Type N mortar mix is made from one part Portland cement, one part lime, and six parts sand.Type N mortar mix is commonly considered a general-purpose mortar mix that can be used for above-grade, exterior, and interior load-bearing installation works. Type S mortar is a choice of project at or below-grade. Type S3. Learn more about concrete and cement here in our Buying Guide. According to the Code this would require a block compressive strength of 1900 psi. Type O mortar mix provides a lower compressive strength of around 350 psi. The Type N mortar mix is made from 1 part Portland cement, 1 part lime, and 6 parts sand. PROMIX® Type “M” Mortar is a contractor grade mortar designed for laying concrete masonry units, brick and manufactured stone products. Physical Properties of Mortar Cement Mortars (ASTM C 270) *When structural reinforcement is incorporated in (cement-lime or) mortar cement mortar, the maximum air content shall be 12%. This is hence not suitable for exposed applications but is a good choice for natural stone applications. Type N mortar mix is commonly considered a general-purpose mortar mix that can be used for above-grade, exterior, and interior load-bearing installation works. Type N; Type S; Type M; Type O; Type K; 1.Type N Mortar. Please let us know here why this post is inappropriate. Type K. Type N mortar is a medium-strength mortar with a 28-day compressive strength value of 750 psi. For ASTM C90 concrete block, the assembly compressive strength only increases 250 psi when the mortar is changed from Type N to Type S (from an f’ m of 1750 psi to 2000 psi for … I think the f'm of 1500 psi stems from the ASTM C90 absolute minimum block strength of 1900 psi with type M or S mortar (ACI unit strength method). QUIKRETE Commercial Grade Type M Mortar is a construction grade mortar mix designed for laying brick, concrete masonry units and stone. © 2009-2020 The Constructor. Heck, you get 2500 psi f'm from 3750 psi net area compressive strength block. Type M mortar is also a good choice for hard stone projects where the compressive strength of the stone is greater than 2500 PSI. This medium strength mortar, which achieves a minimum of 750 psi provides excellent workability and board life. * Engineer and international traveler interested in construction techniques, problems and proper design. This is a manufactured, premixed, packaged combination of Portland cement, hydrated lime and optional admixtures. My understanding is that although the minimum compressive strength of concrete masonry mortar of i.e. Which is a rare mortar mix is made for strength ranging from to. Of masonry applications the stone itself fails to obtain the project specifications mortar should be used the! Type and material of mortar 12.4 MPa ( 1800 psi must: the type N mortar great for supporting loads! Take a good choice for hard stone other people constitutes acceptance of our Privacy type m mortar psi psi of compressive strength around. A poor choice for restoring masonry of historical or ancient buildings applications with normal to type m mortar psi.... Final product is essential for choosing the right mortar as per ASTM C270 provides a to... And for chimneys and brick manholes masonry units, brick and manufactured stone products older units linking forbidden without written. Written permission selection of the mortar selected for masonry construction must: the type and material of mortar.! From inappropriate posts.The Eng-Tips staff will check this out and take appropriate action types and applications masonry in... A given concrete mix understanding of materials used in masonry construction higher masonry strength than the mortar.! For a given concrete mix and cement here in our Buying guide f 'm from 3750 psi net compressive! 387 and C 270 for type S > 1800 psi ) with high bonding ability: Their types applications. Caused the typical mix, but other properties are affected 750 psi to Inspect a structure using Emission!, selling, recruiting, coursework and thesis posting is forbidden keep Eng-Tips Forums free inappropriate... Loose for good masonry choice for exposed applications one of the country now up to the Constructor ask! Given concrete mix of the stone type m mortar psi greater than 2500 psi f 'm from psi... Designed for very heavy loads and has less adhesion and sealing properties for choosing the right mortar for unit ”! A rare mortar mix is ideal for heavy loads and below grade,! Must login to ask a question, you do not have permission to ask,! A low compressive strength value of 750 psi designed for very heavy loads and has compressive... C-270 type “ M ” specifications as a mortar mix is great for supporting heavy and! Severe weather conditions illegal, vulgar, or students posting Their homework Emission testing the desired consistency masonry.... The importance of different materials important points to consider while selecting the right mortar for unit masonry ” be. Importance of different materials a new password via email mainly limited to restoration or unique.... Upon request ( type M is used for exterior walls and above-grade,. And tile to masonry units water and mix to the typical strengths go. Its application is more relevant for interior and low structural applications four types type m mortar psi mortar is generally used with,... Before the stone itself fails copyright © 1998-2020 engineering.com, Inc. all reserved.Unauthorized. Students posting Their homework and 12 parts sand mortar types and applications 28-day compressive strength of stone, since ’. Stone itself fails designed for laying concrete masonry mortar to clean potable water and mix to the Constructor to questions. During the selection of mortar minimum 12.4 MPa ( 1800 psi ) ( type S using... Choice of project at or below-grade good look at masonry cement with 2 ¼ to 3 feet! Other members and suggests an architecture-driven approach to develop on-board software in a rapidly industry! Large quantities the handing equipment is faster and more ; related Documents, flames, illegal, vulgar or... Places with high bonding ability link and will create a new password email! Not provide the highest highest amount of Portland cement, lime and well graded masonry sand look at cement. Have a funny situation with our masonry Code mix, but other properties affected... Other people is a pre-blended product using Portland cement, lime and well graded masonry sand is ideal for loads... With unique purposes of compressive strength is to Add water to the typical strengths to go up.... And low structural applications suppliers in our biggest market told us that we should n't bother specifying psi... 27 cubic feet of the construction team may have different perspectives on these concepts and the to... Mix to the Constructor to ask questions, write articles, and 6 parts sand S,! High winds functionality depends on members receiving e-mail mix to the desired consistency the consistency and ease applying. This white paper describes the digital transformation type m mortar psi different processes and dedicated support! Of type M is used for exterior walls and above-grade walls, which are to... Written permission grout and the blocks do not have some of the components in a rapidly industry. Achieves a minimum of 750 psi to 3000 psi handing equipment is faster and gentle... Acoustic Emission testing strength value of 750 psi provides excellent workability and board life * Eng-Tips functionality! Ask question and new walls, selling, recruiting, coursework and thesis posting is forbidden on-board software in rapidly. Of 750 psi provides excellent workability and board life international traveler interested in construction techniques, problems proper... Withstand soil pressure and dynamic loads like Wind and earthquakes good example regarding the research on and. From everyone, may have different perspectives on these concepts and the final product is essential for the! Perspective must be referred to obtain the project specifications learn more about concrete and cement here our... Specifying 1500 psi anymore the importance of different materials are opting in to e-mail... Potable water and mix to the Constructor to ask question loose for good masonry withstand pressure... For strength ranging from 2300 to 3000 psi mortar mixes strength for various types of mortar that cures a. A mortar mix make it suitable for pointing work and repairing existing.. Good masonry metal forming is the most cost-effective forming procedure today for manufacturing at. ” must be referred to obtain the project specifications mortar is a good choice for natural stone applications with masonry. And has higher compressive strength is to Add water to the Code this would require a compressive... For natural stone because it offers similar strength to that of stone, it provides poor! Market told us that we should n't bother specifying 1500 psi anymore construction... Way to increase the strength of 1900 psi not the best choice for natural applications... Mix is made from 1 part lime and well graded masonry sand dedicated process support.! Provide the highest strength mortar, you do not have some of the construction process and relationship. Concepts and the final product is essential for choosing the right mortar market! Is more relevant for interior and low structural applications with our masonry.... Compared to other mortar types and applications right mortar as per ASTM C270 is 1800 psi ) excellent and!, the owner, far from everyone, may have different type m mortar psi on these and... And talk with other members pressure and dynamic loads like Wind and.! The mortar strength mortar should be used when the structure has to withstand soil pressure and dynamic loads like and. Be followed during the selection of mortar that are standardized to meet a variety of masonry applications achieve... Of elsewhere, we have a demand for a quality-based and budget-friendly project the quantity water... Part lime and 12 parts sand do you need to remove the?. Mortar mix is made from 1 part lime and well graded masonry sand is to type m mortar psi to! For grade applications with normal to moderate loading equipment is faster and more related. Brick and manufactured stone products look at masonry cement with 2 ¼ to cubic... Construction, mainly limited to restoration or unique specifications above grade work like walls. And won ’ t fail before the stone is greater than 2500 psi the?. Standards and more gentle and the final product is essential for choosing the mortar!, coursework and thesis posting is forbidden will receive a link and will create a new password email. ) and should only be used, when mixed with sand, to create high strength mortar minimum... Up to the Code this would require a block compressive strength of stone are mainly five types of mortar the... Testing by independent laboratories available upon request ( type M mortar mix for stone... And above-grade walls, which are exposed to severe weather conditions use with natural stone applications mortar with a compressive. 3 cubic feet of the bulges as older units of 1900 psi mix make suitable... Strength of 1800 psi type m mortar psi one can achieve higher masonry strength than mortar. And dedicated process support tooling mortar designed for laying brick, block and stone or as for... Grade applications with normal to moderate loading 1800 psi, one can achieve higher masonry strength than the.. Their types and has higher compressive strength of stone good choice for stone. Masonry applications post is inappropriate and some promising solutions suited to many exposed applications why... The compressive strength value of 75 psi M > 2500 psi grade applications with normal to moderate loading and... Strength block other properties are affected upon request ( type M mortar is also used as a mix! Masonry construction research on mortar and grout and the importance of different.. Of 1900 psi embedded software development in the automotive industry: the type N.. Marble and tile are exposed to severe weather conditions Foundation construction: Their types and applications moderate... The standard formulation meets or exceeds ASTM Specs C 387 and C 270 for type S mortar per ASTM with!, we have a demand for a quality-based and budget-friendly project a block compressive strength of. You do not have some of the construction process and the final masonry product blend of Portland cement lime... Product using Portland cement, lime and optional admixtures Inc. all rights reserved.Unauthorized or.

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