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Título : Compressive strength of HPC contining CNI and fly after long-term exposure to a matine environment
Autor : López-Calvo, ´H. Z.
Montes-García, P.
A. Thomas, M. D.
Bremner, T.W.
Jiménez-Quero, V. G.
Palabras clave : calcium nitrite
fly ash
high performance concrete
comprenssive strength
marine enviroment
Fecha de publicación : 2012
Editorial : Cement & Concrete Composites
Citación : Volume 34;
Resumen : This study addressed the effect of calcium nitrite based corrosion inhibitor (CNI) and fly ash (FA) on the long-term compressive strength of high performance concrete (HPC). A 33 full factorial design was developed to evaluate the influence of CNI at addition rates of 0, 12.5 and 25 L/m3 on the compressive strength of HPC manufactured with 8% silica fume blended cement in combination with 0%, 20% and 40% FA replacements and mixed at 0.29, 0.37 and 0.45 water to cementing materials ratios (w/cm). Standard 100 200 mm cylinders were prepared and tested for compressive strength at 28 days and 1 year. The 9-year old concrete specimens were obtained from small-scale reinforced concrete slabs that were exposed to a marine environment. Results indicate that the interaction of CNI and FA does not adversely affect the short and long term compressive strength of concrete. In fact, an enhancement on the compressive strength was observed in concretes containing such combination even after long-term exposure to a marine environment.
URI : http://www.repositoriodigital.ipn.mx/handle/123456789/19910
ISSN : 0958-9465
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