ESTUDO DE CASO: Implementação de Laje Subpressão em um Edifício Residencial no Setor Bueno, Goiânia-GO

Abstract

Over the last few decades, significant population growth and notable technological advances in the field of civil engineering can be observed, in parallel to these factors, and given the need to optimize space in large cities, we have witnessed the verticalization of constructions. However, this type of structure brings with it a small number of challenges, especially in relation to the management of water present underground. The construction of vertical buildings requires deep foundations, which often exceed the water table. The study in question addresses a solution to ensure that water coming from underground does not harm the structure, known as a subpressure slab. This process was monitored from the planning phase to its execution. With regard to waterproofing, preventive measures were used such as the use of asphalt blanket in the elevator shafts, BITUTHENE® 3000 blanket in the foundation blocks, and the 100S preprufe blanket in the entire basement area and on the retaining walls. Once the waterproofing was completed and the entire steel structure was in the location planned in the project, the concreting process began. This process received meticulous care, involved large service fronts and carried out several tests and procedures to guarantee the quality of the concrete on site. To provide resistance and ideal characteristics for good concrete, some additives were used such as polypropylene microfiber, polyfunctional additive, plasticizing and crystallizing additive.