Research Article
A Study on the Flexural Behaviour of Geopolymer Lightweight Eco-Friendly Concrete Using Coconut Shell as Coarse Aggregate
Table 6
Comparison of test results at service stage and ultimate stage.
| Beam ID | Service load (kN) | Ultimate load (kN) | 1st crack load (kN) | Cracking moment (mcr-exp) (kN·m) | Service moment (Ms-exp) (kN·m) | Ultimate moment (Mu-exp) (kN·m) | Ultimate moment (Mu-theo) (kN·m) | Capacity ratio |
| Singly reinforced beam | GPCSC-S1 | 18.67 | 28 | 9 | 4.20 | 8.71 | 13.07 | 12.24 | 1.07 | GPCSC-S2 | 25.33 | 38 | 10 | 4.67 | 11.82 | 17.73 | 16.88 | 1.05 | GPCSC-S3 | 36.00 | 54 | 11 | 5.13 | 16.80 | 25.20 | 22.69 | 1.11 | GPCC-S1 | 20.00 | 30 | 10 | 4.66 | 9.33 | 14.00 | 12.41 | 1.13 | GPCC-S2 | 26.67 | 40 | 12 | 5.60 | 12.45 | 18.67 | 17.17 | 1.09 | GPCC-S3 | 38.67 | 58 | 14 | 6.53 | 18.05 | 27.07 | 23.58 | 1.15 |
| Doubly reinforced beam | GPCSC-D1 | 54.67 | 82 | 12 | 5.60 | 25.51 | 38.27 | 35.69 | 1.07 | GPCSC-D2 | 88.00 | 132 | 13 | 6.07 | 41.07 | 61.60 | 59.94 | 1.03 | GPCSC-D3 | 102.67 | 154 | 16 | 7.47 | 47.91 | 71.87 | 73.71 | 0.98 | GPCC-D1 | 56.00 | 84 | 14 | 6.53 | 26.13 | 39.20 | 37.65 | 1.04 | GPCC-D2 | 90.67 | 136 | 15 | 7.00 | 42.31 | 63.47 | 61.59 | 1.03 | GPCC-D3 | 108.00 | 162 | 18 | 8.40 | 50.40 | 75.60 | 75.07 | 1.01 |
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