Resumo

CAMARGO PEREZ, Nelson Ricardo  e  HIGUERA SANDOVAL, Carlos Hernando. CONCRETE HYDRAULIC MODIFIED WITH SILICA OBTAINED OF THE RICE HUSK. Cienc. Ing. Neogranad. [online]. 2017, vol.27, n.1, pp.91-109. ISSN 0124-8170.  https://doi.org/10.18359/rcin.1907.

The cement is one of the raw materials in the production of the hydraulic concrete, but its production is considered one of the most polluting processes on our planet. The research project analyzes the mechanical, physical and chemical behavior of a mix of hydraulic concrete modified with silica obtained from the incineration of rice husk. The used methodology was an experimental design that was worked with cement Holcim M1 Concretera, it was used as pattern sample, a mix design of hydraulic concrete for a compressive strength of 350 Kg/cm2 , and flexural strength of 42 Kg/cm2 . The modification was made by replacing the cement by ash rice husk (silica), in proportions of 5%, 15% and 30%. The results show viability for the replacement percentage of 5% in the compressive strength, indirect strain and flexural, therefore there is a technical feasibility to apply this procedure.

Palavras-chave : husk of rice; hydraulic concrete; rigid pavement; pozzolan; silica.

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