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As a professional with extensive knowledge in various industries, I would like to address a common misconception about lime mortar – that it cracks easily. This is a topic that has been debated for years, and it’s time to set the record straight.

Firstly, it’s important to understand that lime mortar is a traditional building material that has been used for centuries. It is made from a mixture of lime, sand, and water, and is known for its durability and breathability. Unlike modern cement-based mortars, lime mortar is flexible and allows for natural movement in the building, which is essential for preventing cracks.

However, lime mortar can crack if it is not applied correctly. One of the main reasons for this is improper mixing. If the lime mortar is mixed with too much water, it can become weak and prone to cracking. On the other hand, if it is mixed with too little water, it can become too stiff and difficult to work with, which can also lead to cracking.

Another factor that can contribute to cracking is the type of sand used in the mixture. The sand should be clean and free of impurities, and should be of a consistent size. If the sand is too fine or too coarse, it can affect the strength and durability of the lime mortar.

It’s also important to note that lime mortar requires a longer curing time than cement-based mortars. This means that it should be allowed to dry slowly and evenly, and should be protected from extreme weather conditions during the curing process. If the lime mortar dries too quickly or unevenly, it can lead to cracking.

In conclusion, lime mortar does not crack easily if it is applied correctly and allowed to cure properly. It is a durable and breathable building material that has stood the test of time. However, it’s important to work with a professional who has experience in using lime mortar, and to ensure that the mixture is properly mixed and cured.

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