Research Article
Estimation of Long-Term Stiffness of Storage Aged GFRP Composite Samples Immersed in HCl Acid by TTSP Method
Table 4
Experimental modulus of elasticity of the nonacid immersed samples.
| Storage aged samples | (MPa) |
| 15-year aged () | 8130 | 15.5-year aged | 7200 | 16-year aged | 6800 | 16.5-year aged | 6250 | 17-year aged | 6400 | 17.5-year aged | 5950 | 18-year aged | 5550 | 18.5-year aged | 5400 | 19-year aged | 5150 |
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