Journal of Building Technology

This paper aims to present the coastal erosion containment technology applied on the shoreline of Maceió, utilizing the Dutch methodology with solid concrete blocks and precast hexagonal rings, without the need for reinforcements. Maceiófaces challenges posed by advancing seas onto the mainland, exacerbated by sediment deficit and meteorological variations resulting infrequent storm surges and damage to urban infrastructure, as well as loss of vegetation due to human activities along the coast. In response to this scenario, studies have been conducted to mitigate the impacts of coastal erosion and halt sea encroachment. Among the considered approaches are the use of gabions, granite stone revetments, retaining walls, bagwalls, sandbags,and now the implementation of hexagonal rings and solid concrete blocks as coastal containment measures. The use of hexagonal rings and solid blocks aims to efficiently dissipate wave energy and serve as physical barriers to decelerate erosion and protect coastal soil. This multifaceted strategy represents a promising alternative to address the challenges of coastal erosion along the shoreline of Maceió.