What Is The Difference Masonry Cement Vs Portland Cement

What Is The Difference Masonry Cement Vs Portland Cement

Masonry cement and Portland cement are two types of cement used in construction. They have different ingredients, manufacturing processes, and are covered under different specifications. Masonry cement is made from portland clinker, plasticizers, and an air entraining agent, while Portland cement is a blend of portland cement and hydrated lime. Masonry cement is covered by ASTM C91, whereas Portland cement is covered by ASTM C150 and C207. Both types of cement have similarities in terms of bond, workability, weather resistance, water permeance, efflorescence potential, water retention, and board life. However, the key to a successful masonry project is the skill and familiarity of the mason with the chosen product.

Key Takeaways:

• Masonry cement and Portland cement are two different types of cement used in construction.
• Masonry cement is made from portland clinker, plasticizers, and an air entraining agent. Portland cement is a blend of portland cement and hydrated lime.
• Masonry cement is covered by ASTM C91, while Portland cement is covered by ASTM C150 and C207.
• Both types of cement have similarities in terms of bond, workability, weather resistance, water permeance, efflorescence potential, water retention, and board life.
• The skill and familiarity of the mason with the chosen product is crucial for a successful masonry project.

Types of Mortar – Masonry Cement

When it comes to masonry construction, choosing the right type of mortar is crucial for the success and durability of the project. Masonry cement, covered by ASTM C91, offers a range of types that cater to different applications and requirements.

Type N Masonry Cement

Type N masonry cement is a versatile option suitable for general use in mortars for brick and block. It is often used in non-load bearing applications, including brick veneers. This type of masonry cement provides good workability and bond strength, making it ideal for various masonry projects.

Type S Masonry Cement

Type S masonry cement is recommended for both interior and exterior masonry mortar. It offers higher load-bearing capacity compared to Type N, making it suitable for projects that require increased strength and durability. Type S masonry cement is commonly used in applications where the mortar will be exposed to severe weather conditions.

Type M Masonry Cement

Type M masonry cement is designed specifically for below-grade construction. It provides excellent resistance to water penetration, making it ideal for applications in areas with high groundwater levels or moisture. This type of masonry cement is commonly used in foundations and other below-grade masonry work.

Choosing the right type of masonry cement is essential for achieving the desired strength, workability, and durability in masonry projects. It is important to follow the specifications outlined in ASTM C91 and consult with a qualified professional to determine the most appropriate type of masonry cement for the specific project requirements.

Types of Mortar – Portland Cement

Portland cement is a common type of cement used in construction, and it is blended with hydrated lime to create Portland/lime blends. Portland cement is covered by ASTM C150, while hydrated lime is covered by ASTM C207. Portland/lime blends are manufactured using portland cement and hydrated lime, providing workability and water retention similar to masonry cement. The lime in the blend acts as a lubricant, increasing workability, while the fine particles of lime help retain water effectively. Portland/lime blends are suitable for use in masonry mortar for various applications, including non-load bearing interior walls and exterior walls carrying the load of the roof or multiple stories of brick or block.

In terms of applications, Portland cement is versatile and widely used in various construction projects. It is commonly used for concrete production, as it provides high strength and durability to the final product. Portland cement can be used for building foundations, structural columns, slabs, sidewalks, and driveways. It is also suitable for precast concrete products, such as pipes, blocks, and panels. Additionally, Portland cement is used in the construction of bridges, dams, and other infrastructure projects. Its versatility and reliability make it a preferred choice for many construction professionals.

Table: Comparison of Masonry Cement and Portland Cement

	Masonry Cement	Portland Cement
Ingredients	Portland clinker, plasticizers, air entraining agent	Portland cement, hydrated lime
Covered by ASTM	C91	C150, C207
Workability	Good workability	Workability similar to masonry cement when blended with hydrated lime
Bond	Similar bond as Portland cement	Better bond ability
Water Permeance	Similar water permeance	Claimed to be more water-tight
Cost	Lower cost	Higher cost
Availability	Widely available	Limited availability compared to masonry cement

As seen in the comparison table above, masonry cement and Portland cement have their own strengths and advantages. Masonry cement offers good workability, lower cost, and enhanced setting times, making it suitable for various masonry applications. On the other hand, Portland cement provides a better bond ability and is claimed to be more water-tight. However, it comes at a higher cost and has limited availability compared to masonry cement. The choice between the two depends on the specific requirements of the project and the familiarity of the mason with the chosen product.

Comparison – Masonry Cement vs Portland Cement

When it comes to choosing between masonry cement and Portland cement, there are several factors to consider. Both types of cement have their advantages and it ultimately depends on the specific needs of your project.

Masonry cement offers several advantages that make it a popular choice among builders. First and foremost, it has a proven track record of successful use in construction projects. Its lower cost compared to Portland cement can be a significant factor, especially for larger projects where cost savings are a priority.

Another advantage of masonry cement is its increased workability, which can lead to higher production rates on the job site. Additionally, masonry cement has enhanced setting times and water retention rates, reducing the risk of shrinkage cracking.

On the other hand, Portland cement offers certain advantages as well. It provides a better bond ability, making it a preferred choice for projects that require a strong and durable bond between bricks or blocks. Portland cement is also claimed to be more water-tight, making it suitable for applications where water permeance is a concern.

However, it’s important to note that Portland cement generally comes at a higher cost compared to masonry cement and may have limited availability in some areas. Therefore, it’s crucial to weigh the advantages and disadvantages of each type of cement and consider the specific requirements of your project before making a decision.