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Most studies on the PAFSIN pipes were oriented monitoring their behavior in laboratory conditions, focusing on the fluid and less influence on the environment laying on the mechanical properties in the short term then extrapolated mathematical term. Moreover, a large part of these studies refer only to the effect on PAFSIN composite samples without taking into account the specificities induced specific geometry pipeline. In this way, the effect PAFSIN pipes can be overlooked, which in practice can lead to significant errors of design and / or execution. Compared to existing studies, taking into account only the effect of a sealant (generally standardized solutions of acid or base) of the PAFSIN pipes, in the article to present the results of tests conducted on PAFSIN pipes buried in different types of land and attempted to surprise the complexity of the interactions of soil solution to the conduit.

of PAFSIN Pipes in Different Types of land. Journal of Applied Sciences, 7(20), pp. 11-16, . Aveston, J., Sillwood, J.M., 1982. Long-term strenght of glass-reinforced plastics in dilute sulphuric acid . Journal of Material Science, 17(12), pp. 3491-3498. AWWA C950-13. Fiberglass Pressure Pipe - American Water Works Association. David-West, O.S., Nash, D.H.; Banks, W.M., 2008. An experimental study of damage accumulation in balanced CFRP laminates due to repeated impact. Composites Structures , 83(3), pp.247-258, https