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Volume 59 (2013)
Volume LIX (2013)
Volume LVIII (2012)
Volume LVII (2011)
Most Downloaded Articles
- Effect of Nano Silica on Mechanical Properties and Durability of Normal Strength Concrete by Gopinath, S./ Mouli, P.Ch./ Murthy, A.R./ Iyer, N.R. and Maheswaran, S.
- Finite element modeling of composite concrete-steel columns by Kwaśniewski, L./ Szmigiera, E. and Siennicki, M.
- The inf-sup condition tests for shell/plate finite elements by Gilewski, W. and Sitek, M.
- Application of Extended Finite Element Method to Cracked Concrete Elements – Numerical Aspects by Bobinski, J. and Tejchman, J.
- Optimised mix design for normal strength and high performance concrete using particle packing method by Gopinath, S./ Murthy, A./ Ramya, D. and Iyer, Nagesh
Effect of Nano Silica on Mechanical Properties and Durability of Normal Strength Concrete
1Scientist, CSIR-SERC, Chennai CSIR - Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai-600113, India
2Project student, CSIR-SERC, Chennai CSIR - Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai-600113, India
3Director, CSIR-SERC, Chennai CSIR - Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai-600113, India
Citation Information: Archives of Civil Engineering. Volume LVIII, Issue 4, Pages 433–444, ISSN (Online) , ISSN (Print) 1230-2945, DOI: 10.2478/v.10169-012-0023-y, December 2012
- Published Online:
Nano technology is an emerging field of interest for civil engineering application. Among the nano materials presently used in concrete, nano-silica possess more pozzolanic nature. It has the capability to react with the free lime during the cement hydration and forms additional C-S-H gel giving strength, impermeability and durability to concrete. Present paper investigates the effects of addition of nano silica in normal strength concrete. Three types of nano-silica in the form of nano suspension having different amount of silica content have been investigated. Mix design has been carried out by using particle packing method. X-Ray diffraction (XRD) analysis has been carried out to find the chemical composition of control concrete and nano modified concrete. Further, experimental investigations have been carried out to characterize the mechanical behaviour in compression, tension and flexure. It has been observed that the addition of nano-silica in normal strength concrete increased the compressive strength and decreased the spilt tensile strength and flexural strength. Also, Rapid chloride permeability test (RCPT) has been conducted to know the chloride permeability of control concrete, nano modified concrete, and nano coated concrete. It has been observed that the chloride permeability is less for nano coated concrete.