Hdpe pipeline damage risks reduced with green composite repair patches
Green Composites for Safer and Durable Water Pipelines
Computational Engineering, Finance, and Science
Summary
Water pipes in Algeria often break due to corrosion and handling damage, causing water shortages. The authors studied the plastic pipes made of HDPE to understand how they fail under pressure and stress. They used these insights to create a computer model that predicts when damage might happen. They also developed a special eco-friendly patch to fix damaged pipes and restore their strength, helping to keep water flowing safely for a long time.
What this means in practice
- •For pipeline maintenance teams: Use predictive models and green composite patches to repair and extend the life of damaged HDPE water pipes.
- •For water infrastructure managers: Plan safer water distribution strategies by anticipating pipe failure risks with mechanical property data and simulations.
- •For civil engineers: Apply eco-friendly composite repair techniques for sustainable rehabilitation of damaged plastic water pipelines.$Commercial implications: Green composite patches can be sold as durable repair products for water pipeline rehabilitation, reducing environmental impact and costs.
Authors
Djebbara Benzerga, Faycal Sotehi, Adel Chouiter, Abdelkader Haddi, Nahla Benzerga
Abstract
The intensifying water shortage in Algeria makes clear the need of novel, sustainable strategies to protect distribution networks. Current infrastructure struggles with frequent failures, particularly leaks stemming from corrosion or handling damage during transport and installation. High-density polyethylene (HDPE) has become a material of choice because it handles these challenges well; it is cost-efficient, flexible, and tough enough to withstand harsh environments.This work investigates the failure risks of HDPE pipelines manufactured by ITP Alg{é}rie -- Innovation Transformation Polym{è}re. Mechanical tests were performed on HDPE 100 to determine its fundamental properties, including burst tests under internal pressure and load/unload experiments aimed at establishing a material-specific damage law revealed the dominant degradation mechanisms that occur under different operational and environmental conditions. Based on these findings, a predictive numerical model was developed to simulate damage progression and anticipate potential failures in service. This study introduces a unique hybrid composite patch designed for the precise rehabilitation of compromised pipeline sections. It shows strong promise for rebuilding the mechanical integrity of pipes, which is vital for maintaining a safe and long-lasting drinking water supply.