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As estruturas de concreto armado estao presentes na construcao brasileira em grande escala e cada vez mais os tecnicos e responsaveis da area deparam-se com problemas e reparos relacionados a fatores ocasionados por solicitacoes intensas, ambientes agressivos, entre outros. No presente trabalho realizou-se um estudo da estrutura de um piso industrial de concreto armado de uma tinturaria de Brusque (SC), com o objetivo de identificar quais os agentes agressivos que atuam no processo de degradacao do piso em concreto armado de uma industria textil. A metodologia teve abordagem qualitativa e quantitativa; quanto aos procedimentos tecnicos se caracterizou como bibliografica aliada ao estudo de campo. Os resultados mostraram que mesmo com baixas taxas de porcentagem de areas atingidas por ataque de solucoes acidas, os pisos industriais necessitam ser revestidos apropriadamente, a fim de evitar as manifestacoes patologicas oriundas de ambientes agressivos. Ainda mostraram que as patologias identificadas, foram principalmente, em areas molhadas, ou seja, ao lado de cada maquina de tingimento no piso da tinturaria, ocasionada por ataques de corantes diluidos em agua que formam solucoes acidas, uma vez que a maquina do processo de tingimento faz uso desses em suas composicoes para realizar o tingimento. Os acidos sao altamente agressivos as estruturas de concreto armado, principalmente, quando em contato direto com o concreto, pois desintegra a pasta de cimento e expoe os agregados, tornando-o com o passar do tempo ainda mais suscetivel a degradacao. Conclui-se que a lixiviacao e responsavel por degradar a capa do concreto pela infiltracao de solucoes acidas e de agua sobre os poros do concreto, reduzindo sua resistencia mecânica. Palavras-Chave: Concreto Armado. Patologia. Piso Industrial Tinturaria. ABSTRACT Reinforced concrete structures are present in Brazilian construction on a large scale and more and more technicians and managers in the area are faced with problems and repairs related to factors caused by intense requests, aggressive environments, among others. In the present work, a study of the structure of an industrial concrete floor of a Brusque dyeing plant was carried out in order to identify the aggressive agents that act in the process of degradation of the reinforced concrete floor of a textile industry. The methodology had a qualitative and quantitative approach; technical procedures was characterized as a bibliography allied to the field study. The results showed that even with low percentages of areas hit by acid solutions, industrial floors need to be properly coated in order to avoid pathological manifestations from aggressive environments. They also showed that the identified pathologies were mainly in wet areas, that is, next to each dyeing machine on the dyeing floor, caused by attacks of dyes diluted in water that form acidic solutions, since the process machine dyeing makes use of these in their compositions to accomplish the dyeing. Acids are highly aggressive to reinforced concrete structures, especially when in direct contact with the concrete, as it disintegrates the cement paste and exposes the aggregates, making it over time even more susceptible to degradation. It is concluded that the leaching is responsible for degrading the concrete cover by the infiltration of acidic solutions and water over the pores of the concrete, reducing its mechanical resistance. Keywords: Armed Concrete. Pathology. Industrial Dyeing Floor.

RECOMENDAÇÕES TÉCNICAS À PREVENÇÃO DE FENÔMENOS PATOLÓGICOS EM PISOS DE CONCRETO ARMADO: AMBIENTE INDUSTRIAL TÊXTIL SOB AÇÃO DE SOLUÇÕES ÁCIDAS