Which type of hydrated lime is best to use with Portland cement for mortar?

Which type of hydrated lime is best to use with Portland cement for mortar?

• A. Type S
• B. Type N
• C. Type O
• D. Type L

Answer: (A)

The use of Type S hydrated lime with Portland cement for mortar is best due to its specific properties that enhance the performance of the mortar. Type S lime possesses greater strength and durability than other lime types, making it particularly suitable for structural masonry applications. It also contributes to improved workability and water retention in the mortar mix. This type of lime can help to offset the brittleness that may occur with just Portland cement, allowing for a more flexible and robust mortar that can better accommodate movement and settling in masonry structures. Additionally, Type S lime supports the strength of the bond and helps in avoiding cracking, making it an ideal choice for construction projects where longevity and integrity are crucial. In contrast, other types of hydrated lime, such as Type N, Type O, and Type L, do not offer the same level of strength or workability enhancements for use in combination with Portland cement. Therefore, Type S is clearly the most effective option when aiming for high-quality mortar in masonry work.

The use of Type S hydrated lime with Portland cement for mortar is best due to its specific properties that enhance the performance of the mortar. Type S lime possesses greater strength and durability than other lime types, making it particularly suitable for structural masonry applications. It also contributes to improved workability and water retention in the mortar mix.

This type of lime can help to offset the brittleness that may occur with just Portland cement, allowing for a more flexible and robust mortar that can better accommodate movement and settling in masonry structures. Additionally, Type S lime supports the strength of the bond and helps in avoiding cracking, making it an ideal choice for construction projects where longevity and integrity are crucial.

In contrast, other types of hydrated lime, such as Type N, Type O, and Type L, do not offer the same level of strength or workability enhancements for use in combination with Portland cement. Therefore, Type S is clearly the most effective option when aiming for high-quality mortar in masonry work.