Lime mortar

Definition

Lime mortar is a type of building material made from a mixture of lime, water, and aggregate, such as sand. It has been used in construction since ancient times and was particularly prominent in the architecture of Ancient Greece due to its strong binding properties and flexibility. This material allowed for durable structures that could withstand the test of time, while also being able to accommodate slight movements without cracking, making it essential in the construction methods of the era.

5 Must Know Facts For Your Next Test

1. Lime mortar is highly breathable, allowing moisture to escape from walls, which helps prevent damage from trapped humidity.
2. The production of lime mortar involves heating limestone in a kiln to create quicklime, which is then mixed with water to form slaked lime before being combined with aggregate.
3. In Ancient Greece, lime mortar was essential for constructing long-lasting buildings like temples and theaters, contributing to their survival into modern times.
4. The flexibility of lime mortar enables structures to adapt slightly to environmental changes without causing damage, unlike more rigid materials.
5. Lime mortar can be easily repaired and reused, making it an environmentally friendly option compared to modern cement-based mortars.

Review Questions

• How does the flexibility of lime mortar contribute to the longevity of ancient Greek structures?
  • The flexibility of lime mortar allows buildings constructed with it to accommodate slight movements caused by environmental factors such as temperature changes and settling. This adaptability helps prevent cracking and structural failure over time, which is why many ancient Greek structures have survived for centuries. The ability of lime mortar to endure minor shifts while maintaining its integrity is a key reason these historic sites continue to stand strong today.
• What are the advantages of using lime mortar over modern cement in construction?
  • Lime mortar offers several advantages over modern cement, including its breathability that allows moisture to escape from walls, reducing the risk of damage. Additionally, lime mortar is more flexible than cement, which means it can better handle minor shifts in structures without cracking. Furthermore, lime mortar is easier to repair and more environmentally friendly since it can be made from natural materials and is less energy-intensive to produce compared to cement.
• Evaluate the role of lime mortar in the architectural achievements of Ancient Greece and how it influenced later construction methods.
  • Lime mortar played a crucial role in the architectural achievements of Ancient Greece by enabling builders to create durable and flexible structures that have withstood the test of time. The use of this material allowed for intricate designs and large-scale constructions like temples and theaters that are still admired today. As techniques evolved, the principles established through the use of lime mortar influenced later construction methods, leading to a greater understanding of materials science and the development of modern building practices that still value flexibility and breathability in building materials.

Related terms

Hydraulic lime: A form of lime that hardens when mixed with water, even under water, and is used for building purposes where resistance to water is required.

Aggregate: Materials like sand or gravel mixed with cement or lime to create concrete or mortar, providing strength and stability.

Cement: A powdered substance made from calcined lime and clay that hardens when mixed with water, often used as a modern alternative to lime mortar in construction.