Using pozzolan in drainage systems: practical field notes

Pozzolan can be effective in drainage systems when layer sequencing is correct. In most projects, a clean geotextile separator helps maintain long-term performance by limiting fine migration. Layer thickness should be defined by hydraulic load and local soil behavior.\n\nField observations show that maintenance intervals improve when the system is designed for easy inspection. Keep access points clear and avoid contaminating stored material before installation.\n\nFor best results, align design assumptions with actual site conditions and expected seasonal changes. A short on-site validation phase can prevent expensive post-installation corrections.