Análise da Viabilidade Econômica e Sustentável do Uso de Tubos BIAX (PVC-O) como Substituto às Tubulações de DEFOFO e Ferro Fundido na Construção Civil

Abstract

This study compared three types of pipe materials — DEFOFO (PVC-M), Cast Iron, and BIAX (PVC-O) — widely used in water and sewage networks. The analysis, focused on head loss, reviewed technical manuals from each manufacturer to extract essential specifications such as nominal diameter and pressure parameters, critical for hydraulic efficiency. It was observed that, while DEFOFO and BIAX pipes provided detailed head loss calculations, cast iron pipes required additional calculation using the Hazen-Williams roughness coefficient (C=130). For standardization, a design velocity of 6 m/s was adopted, allowing for uniform comparison. The results, organized into spreadsheets, highlighted differences in head loss and provided insights on durability, cost, environmental impact, and the suitability of each material for infrastructure projects, contributing to a robust analysis of the viability of each option.