No presente estudo, observou-se a influência da microesfera de aço na utilização em concretos estruturais através da análise dos resultados da resistência à compressão aos sete dias de cura, obtidos através de ensaios destrutivos à compressão, de corpos de prova cilíndricos, moldados por concreto dosado com porcentagens do novo agregado (microesfera de aço), substituído por uma parcela de areia, nos traços de concreto utilizados. Os concretos produzidos foram dosados experimentalmente e identificados pelo teor de argamassa e porcentagem de microesferas pela areia nos traços calculados. No presente trabalho, foram moldados sessenta e um corpos de prova, sendo que cinqüenta e oito foram ensaiados, um seccionado longitudinalmente para a análise da estrutura interna (disposição dos agregados) e os outros dois últimos selecionados para observações futuras.
In the present study, the influence of the use of steel microsphere in structural concrete has been observed. By ayalyzing the results of compression resistance taken after seven days of curing and performance of compression destructive tests on cylindrical test molds consisting of measured concrete with added percentages of the new aggregate (steel microsphere), which replaced one sand parcel in the traces of the concrete used. The produced concrete was experimentally dosed and identified according to the rate of building cement and percentage of microspheres in the sand of the calculated traces. In the present study, sixty-one test molds have been produced of which fifty-eight have been essayed, one selected longitudinally for analyse of it's internal structure (disposition of the aggregates) and the last two have been selected for future observations
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