Incorporating an appropriate proportion of hydrated lime into a cement-based mixture improves plasticity and workability, making the product easier to handle on the trowel. Hydrated lime also increases water retention, which helps to improve the contact and bond with the substrate.
Why Is Lime Added to Mortar?
Lime has been used as an additive to mortar for centuries and a good reason. Adding lime to mortar offers several benefits that make it a valuable component in construction material. Mortar is a type of paste used to bind building materials, such as bricks and stones, and it’s used in various applications, from building walls to installing tile.
One of the main reasons lime is added to mortar is to increase its strength and durability. Lime helps to create a strong bond between the mortar and the building materials, which reduces the risk of the mortar cracking or crumbling over time. It also helps the mortar to remain flexible and not become brittle, which can cause other issues.
Another benefit of adding lime to mortar is increasing the material’s ability to resist water. This is important because it helps protect the structure from water damage. Lime helps to create a seal between the mortar and the building material, which prevents water from seeping into the frame. This makes the structure more durable and helps to keep it in good condition for longer.
Lime also helps reduce the shrinkage that occurs when mortar dries. This helps to ensure that the mortar remains in place, and it