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Influence of nano materials on flexural behavior and compressive strength of concrete
Author
Source
Housing and Building National Research Center Journal
Issue
Vol. 12, Issue 2 (31 Aug. 2016), pp.212-225, 14 p.
Publisher
Housing and Building National Research Center
Publication Date
2016-08-31
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This paper investigates the effect of nano particles on the mechanical properties at different ages of concrete.
Different mixtures have been studied including nano-silica (NS), nano-clay (NC) or both NS and NC together with different percentages.
Mechanical properties have been investigated such as compressive and flexure strength through testing concrete prisms 40, 40 and 160 mm at 7, 28 and 90 days in order to explore the influence of these nano particles on the mechanical properties of concrete.
Results of this study showed that nano particles can be very effective in improving mechanical properties of concrete, nano-silica is more effective than nano clay in mechanical properties and wet mix gives higher efficiency than dry mix.
Exceeding a certain percentage of nano particles in concrete negatively affects the mechanical properties.
Also, binary usage of nano particles; (NS+ NC) had a remarkable improvement appearing in concrete compressive strength than using the same percentage of single type of nano particles.
This improvement can be attributed to the reaction of nano materials with calcium hydroxide Ca(OH)2 crystals, which are arrayed in the interfacial zone (ITZ) between hardened cement paste and aggregates, and produce C- S-H gel and the filling action of nano particles which cause more densified microstructure.
A percent of 3% nano particles consisting of 25% NS and 75% NC gave the highest mechanical properties representing in both compressive and flexure strengths among other percentages.
American Psychological Association (APA)
Muhammad, M. Anwar. 2016. Influence of nano materials on flexural behavior and compressive strength of concrete. Housing and Building National Research Center Journal،Vol. 12, no. 2, pp.212-225.
https://search.emarefa.net/detail/BIM-701133
Modern Language Association (MLA)
Muhammad, M. Anwar. Influence of nano materials on flexural behavior and compressive strength of concrete. Housing and Building National Research Center Journal Vol. 12, no. 2 (Aug. 2016), pp.212-225.
https://search.emarefa.net/detail/BIM-701133
American Medical Association (AMA)
Muhammad, M. Anwar. Influence of nano materials on flexural behavior and compressive strength of concrete. Housing and Building National Research Center Journal. 2016. Vol. 12, no. 2, pp.212-225.
https://search.emarefa.net/detail/BIM-701133
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 224-225
Record ID
BIM-701133