Granite
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Types and Durability
| Description
Granite and Other Igneous Rocks |
Expected Lifespan
(Years) |
Adjustment Factors |
| Internal | ||
| Natural granite and other igneous rocks specified and selected to BS 5385-1 or ASTM C1528-02. Performance and specification to be confirmed with supplier. | 35+ | Quality relies on preservative or water repellent: -30% years
Contact with soluble salt: -30% years Constantly contact/ immersed in water or exposed to extreme moisture: -15% years High possibility exposed to reactive chemical: -15% years Test certificate from local approved testing authority (including porosity, crystallization, etc) for specific batch delivered to site: +15% years |
| Natural granite and other igneous rocks specified and selected to BS 5385-1 or ASTM C1528-02. Performance and specification to be confirmed with supplier. | 35 | |
| Unclassified, i.e. natural granite and other igneous rocks neither specified nor selected to BS 5390. | < 35 | None |
In the case of 2 or more condition of adjustment factor occur, the percentage of year shall be added to obtain the durability value.
Refer to durability calculator.