Os espaçadores são pequenos dispositivos usados para garantir o correto posicionamento das armaduras durante a concretagem de peças de concreto armado ou protendido.
São posicionados na parte mais externa da futura peça de concreto para garantir o devido distanciamento entre as fôrmas e o aço das armaduras.
O objetivo é garantir o cobrimento mínimo das armaduras, previsto pela norma técnica brasileira NBR 6.118:2007 “Projeto de Estruturas de Concreto – Procedimento”, evitando a corrosão do aço pelas intempéries do tempo.
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