Table 1. Composition of composite samples
| No. | Conditions | Thickness (mm) | Fiber length (mm) | Density (kg/m3) |
| 1 | ANS-T10-L10 | 10 | 10 | 285.46 ± 0.41 |
| 2 | ANS-T20-L10 | 20 | 10 | 282.15 ± 0.30 |
| 3 | ANS-T30-L10 | 30 | 10 | 280.65 ± 0.40 |
| 4 | ANS-T10-L20 | 10 | 20 | 294.82 ± 0.61 |
| 5 | ANS-T20-L20 | 20 | 20 | 291.30 ± 0.37 |
| 6 | ANS-T30-L20 | 30 | 20 | 287.94 ± 0.53 |
| 7 | ANS-T10-L30 | 10 | 30 | 329.67 ± 0.29 |
| 8 | ANS-T20-L30 | 20 | 30 | 326.03 ± 0.05 |
| 9 | ANS-T30-L30 | 30 | 30 | 322.31 ± 0.38 |
| 10 | ANS-T30-L10 + 20 | 30 | 10 + 20 | 330.25 ± 0.43 |
| 11 | ANS-T30-L10 + 30 | 30 | 10 + 30 | 325.05 ± 0.14 |
| 12 | ANS-T30-L20 + 30 | 30 | 20 + 30 | 324.75 ± 0.52 |
ANS: areca nut shells.