Table 4 Compressive strengths of NA and RCA fly ash concretes after being exposed to marine environment for 7 years.
From: Utilization of Recycled Aggregate Concrete for Marine Site Based on 7-Year Field Monitoring
Mix | Compressive strength (MPa) | Compressive strength at 7 years compared to 28 days (%) | |
|---|---|---|---|
28 days | 7-year exposure in marine site | ||
I40 | 48.6 | 48.2 | 99 |
I40FR00 | 38.3 | 30.3 | 79 |
I40FR15 | 38.1 | 35.5 | 93 |
I40FR25 | 41.4 | 38.1 | 92 |
I40FR35 | 35.7 | 32.6 | 91 |
I40FR50 | 31.6 | 27.1 | 86 |
I45 | 42.6 | 41.9 | 98 |
I45FR00 | 30.4 | 24.2 | 80 |
I45FR15 | 37.3 | 30.9 | 83 |
I45FR25 | 31.7 | 27.1 | 85 |
I45FR35 | 28.5 | 25.5 | 89 |
I45FR50 | 27.0 | 23.2 | 86 |
I50 | 39.1 | 38.4 | 98 |
I50FR00 | 28.5 | 21.6 | 76 |
I50FR15 | 31.0 | 23.2 | 75 |
I50FR25 | 30.5 | 23.7 | 78 |
I50FR35 | 28.2 | 21.2 | 75 |
I50FR50 | 26.7 | 21.1 | 79 |