Lime and Limestone have been extensively used in construction because of their physical and chemical characteristics as well as their widespread availability. Lhoist has developed Tradical^® products for this market.

Lime is frequently used in mortars as it ensures superior workability and less wastage making mortars easier to use. From an engineering perspective lime mortars display greater long-term durability and enhanced flexural strength. These characteristics can reduce or even eliminate the need for construction joints in brick and blockwork. In addition, their ability to react with water provides a self - healing capability for minor cracks.

Increasingly in new build applications as well as in historical refurbishment, lime is specified not only for mortars but also for plasters, renders and screeds. The advantages of the breathability of lime based products and their self - healing and ductility characteristics make them ideal for these purposes.

Lime is also used in the manufacture of lightweight insulating concrete blocks and building elements otherwise known as Autoclaved Aerated Concrete or AAC. These products are not only light, improving productivity of construction, but are also strong due to their cellular structure. Their increased insulation capabilities over conventional concrete and clay products readily deliver compliance with Building Regulations that demand specific environmental performance in building projects.

Calcium silicate bricks, often referred to as sand lime bricks, have been manufactured since the 19th Century and provide an excellent alternative to clay bricks. Their precise dimensions and clean edges not only provide an attractive finish removing the need for plastering or rendering but also reduce mortar usage thus saving on overall cost through both of these benefits. Their high compressive strength and frost resistance combine to provide excellent durability even when used for exposed locations and aggressive environments for all types of building.

Of course limestone is commonly used as a construction material in its own right as well as being a component for products such as coated roadstone, ready mixed concrete and pre-cast concrete products.