Frequently asked questons
Hydraulic lime offers more strength but less flexibility. The set is initiated by the addition of water (hence the name) and the cure times are shorter.
Non-hydraulic lime is made by adding water to quick lime (known as slaking) which produces an aggressive chemical reaction that produces lime putty. Lime putty is used to make lime wash, mortar, plaster and render depending upon the amount and grade of sand it is mixed with. Non-hydraulic lime sets by reacting with carbon dioxide in the atmosphere and produce less strength with more flexibility.
Lime requires far less energy to produce than cement and will reabsorb carbon dioxide when setting. Lime mortars make recycling bricks far easier, an important consideration when taking into account the amount of building waste and material that ends up in landfill.
Lime has been used for thousands of years and many buildings constructed using lime are still in fine fettle today.
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