Método construtivo de uma laje de subpressão no município de Goiânia - estudo de caso

Abstract

The subpressure slab is a reinforced concrete structure placed below ground level to prevent water infiltration in a building and maintain waterproofing. Designed for submerged structures, it is commonly used in basements, underground garages, water treatment stations, among others. It is engineered to withstand hydrostatic pressures caused by groundwater. This study aimed to document the on-site execution process and key features of constructing a subpressure slab in a residential/commercial building in Goiânia. The research underscored the significance of using crystalline additives in concrete and emphasized considerations for both concrete temperature and microclimate to ensure proper execution. Proper planning of construction joints, incorporating hydro-expansive tapes, was identified as crucial to prevent water passage in these areas.