%K Cements; Chlorine compounds; Compressive strength; Concrete construction; Deterioration; Durability; Engineering research; Fly ash; Pore structure; Silica fume; Steel corrosion, Aggressive environment; Built environment; Chloride migrations; Deleterious materials; Durability property; Mechanical and durability properties; Pozzolanic materials; Transport mechanism, Reinforced concrete %X Concrete is widely used construction material for the development of built environment which consumes huge amount of cement, around 4.3 billion metric ton all over the world. Reinforced concrete construction exposed to harsh environment such as chloride bound air causes deterioration in concrete through its pore structure by corroding the steel bar. The use of pozzolanic material i.e. metakaolin (MK), fly ash (FA), silica fume (SF), nano silica (NS) can be used as partially cement replacing material which not only reduces the pores in concrete but improves the mechanical, durability properties and microstructure of concrete. This paper reviews various transport mechanisms involved in ingress of deleterious material and incorporation of MK, FA and NS in concrete and their effects on concrete mechanical and durability properties. However, the research work provides an extended approach to evaluate combine effect using MK, FA, and NS and to produce a concrete with more refined pore structure for aggressive environment. © 2017 Trans Tech Publications, Switzerland. %J Key Engineering Materials %L scholars9228 %O cited By 18; Conference of International Symposium on Material Science and Engineering, ISMSE 2017 ; Conference Date: 13 January 2017 Through 15 January 2017; Conference Code:195639 %R 10.4028/www.scientific.net/KEM.744.8 %D 2017 %I Trans Tech Publications Ltd %A R. Kumar %A A.Y.B. Mohd Yaseen %A N. Shafiq %A A. Jalal %V 744 74 %T Influence of metakaolin, fly ash and nano silica on mechanical and durability properties of concrete %P 8-14