Dictionary of Moisture Protection & Restoration

Intended uses of stone as a building material: a. As a load-bearing masonry structure. b. As cladding. c. As flooring and paving materials. d. As landscaping. e. As ornamental units. f. As casework and furniture. Deterioration and Problems with stones: a. Environmentally related deterioration: 1. Delamination 2. Spalling 3. Salt Crystallization 4. Discoloration – Staining 5. Organic Growth 6. Fracturing due to corrosion of metal anchorages b. Deterioration of adjacent building materials:

1. Mortar joints 2. Sealant joints 3. Flashings c. Stress related deterioration:

1. Cracking due to settlement 2. Cracking due to thermal move- ment. 3. Cracking due to shrinkage. 1. Incompatible repair material 2. Improper preparation and workmanship 3. Improper repairs (sealants, mortars, etc.)

d. Inappropriate repairs:

78

Made with