I mixed a batch for a small retaining wall with insufficient cement, thinking it would set fine. A sudden storm washed it away before it could cure, wasting a day's effort. What are your best practices for mixing in unpredictable climates?
Touring the site showed me how granite is sourced from the earth. The machinery and manpower required are staggering. It's a side of stonemasonry we often don't see in the shop.