I was introduced to the concept of lime and cement by Manu at SacredGroves, Auroville.
We did our first experiment with the material last year. With the help of the local masons and my understanding from a workshop I attended in Chennai, we created some really good mixes for a tank plastering job at sacredgroves.
Since then I have been continually trying to learn more about lime and observe its behaviour. It is challenging because it depends on your environment more than cement.
At Sun farm so far, we have only used lime for mortar use (mixed with earth, sand and surkhi). The setting times vary of course because of the varying humidity and temperature here, but it does work.
We have built a small water tank with lime and surkhi and its strength over time will guide us in the future experiments.
(Anybody trying to work with lime, please reach out. I can share some test data that could save you some time.)