Q. I am installing flagstone and some paving brick on top of a concrete patio. A book I read suggests mixing sand, cement and hydrated lime in different proportions to make the mortar mix. What is ...

You may not know this, but I received a bachelor of science degree in geology many moons ago. I was fascinated by the topic, and it helped me build houses and buildings that would not fail.

Lime-based mortars are flexible and pervious, allowing for shifts in older foundations and structures and facilitating the movement of moisture in and out walls. This malleability is paramount to ...