During your yearly examination, you may spot blossoming, a white fine substance on your blocks. Flowering happens when salts in the mortar or block are broken down by abundance dampness and move to the outside of the blocks. At the point when the dampness dissipates, the leftover salts leave behind a white fine film. Blooming seldom happens to block houses and structures worked before 1920, in light of the fact that the lime and sand mortar utilized around this time didn't contain Portland concrete. Lime-based mortars have barely any, salts in them.