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.

Question: 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 it to happen? The building ...

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 ...

Question: My ten-year-old house developed some cosmetic cracks in the mortar. I got some bids to have tuck-pointing work done and nearly gagged when I looked at the cost. I’m wondering about using a ...

Q: My 10-year-old house developed some cosmetic cracks in the mortar. I got some bids to have tuck-pointing work done and nearly gagged. I'm wondering about using a special caulk I found that's made ...

The mortar in between these bricks was repaired, but the mix failed. It can be removed and repaired. (Courtesy of Tim Carter) Analysis by Tim Carter It appears I wasted some money five years ago. I ...