Reinforced Dense Concrete
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Types and Durability
| Description Reinforced Dense Concrete |
Expected Lifespan ( Years ) |
Adjustment Factors |
| Internal | ||
| Insitu floor slab complying with CP 65: 2000 or BS 8110: Parts 1 and 2 (for strc. use of concrete). Cement requirements to ASTM C 150 and aggregate to ASTM 256 or BS 7543.
i.e. flush slab; beam and slab; drop slab; and waffle-grid slab |
35+ | 1st stage adjustment factor:
In industrial areas (heavy polluted): -15% years. in urban areas: -10% years in suburban areas: -0% years. 2nd stage adjustment factor: Within 20m from expressway: -20% years. Within 20m from major asterial road: -10% years Within 20m from light traffic road: -5% years Within 20m from seawater/ prone to salt spray: -15% years |
| Floor slab not complying with CP 65: 2000 or BS 8110: Parts 1 and 2. | < 35 |
Combination of adjustment factor (1st stage and 2nd stage) should be added to obtain the durability values. Refer to durability calculator.