Mortar is a cement mixture used to bond bricks, concrete blocks and stones together. Unlike concrete, which weakens if overworked by excessive mixing or smoothing, mortar can be spread and troweled ...

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 ...

Q: It appears I wasted some money five years ago. I had my brick building repointed with new mortar, and it has deteriorated quickly. Do you have any idea what caused that? The building is close to ...