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Influence of nanomaterial on high-volume fly ash concrete: a statistical approach

Influence of nanomaterial on high-volume fly ash concrete: a statistical approach Abstract This work is focused on the mechanical properties of ternary blended nanoconcrete replacing cement with fly ash and nanosilica in the optimized percentage. Ternary blended nanoconcrete mix is designed with 0.45 water-to-binder ratio and 438 kg/m3 of cementitious content in all mixtures with a combination of various percentages of nanosilica and 40% of fly ash by weight of cement. The mechanical properties like compressive, split tensile and flexural strength tests at the age of 7, 14 and 28 days are performed. With the addition of nanosilica, the enhancement was observed in all mechanical properties, but when the dosage of nanosilica was more than optimum, bleeding as well as segregation in concrete was observed. Response surface method was used in predicting the values of compressive strength in this work, which was found to be in agreement with the experimental observations with at least 95% confidence levels. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Innovative Infrastructure Solutions Springer Journals

Influence of nanomaterial on high-volume fly ash concrete: a statistical approach

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Publisher
Springer Journals
Copyright
2020 Springer Nature Switzerland AG
ISSN
2364-4176
eISSN
2364-4184
DOI
10.1007/s41062-020-00340-9
Publisher site
See Article on Publisher Site

Abstract

Abstract This work is focused on the mechanical properties of ternary blended nanoconcrete replacing cement with fly ash and nanosilica in the optimized percentage. Ternary blended nanoconcrete mix is designed with 0.45 water-to-binder ratio and 438 kg/m3 of cementitious content in all mixtures with a combination of various percentages of nanosilica and 40% of fly ash by weight of cement. The mechanical properties like compressive, split tensile and flexural strength tests at the age of 7, 14 and 28 days are performed. With the addition of nanosilica, the enhancement was observed in all mechanical properties, but when the dosage of nanosilica was more than optimum, bleeding as well as segregation in concrete was observed. Response surface method was used in predicting the values of compressive strength in this work, which was found to be in agreement with the experimental observations with at least 95% confidence levels.

Journal

Innovative Infrastructure SolutionsSpringer Journals

Published: Dec 1, 2020

References