Application of Nano Sized Materials for Mitigating the Corrosion in Concrete: A Review

Authors Bhupesh Jain , Gaurav Sancheti , Vaibhav Jain

Department of Civil Engineering, Manipal University Jaipur, Dehmi Kalan, off Jaipur-Ajmer Expressway, Jaipur, 303007 Rajasthan, India

Issue Volume 13, Year 2021, Number 2
Dates Received 05 January 2021; revised manuscript received 22 March 2021; published online 09 April 2021
Citation Bhupesh Jain, Gaurav Sancheti, Vaibhav Jain, J. Nano- Electron. Phys. 13 No 2, 02006 (2021)
PACS Number(s) 61.46. + w, 61.43.Gt
Keywords Nanomaterials (4) , Corrosion (2) , Concrete, Mineral admixture, Silica fume, Nano silica.

Concrete is one of the widely used building materials around the world for the infrastructure development. With the time, the infrastructural structures require maintenance as they bear all types of environmental impacts. Corrosion in concrete is one such environment impact. There is different reason of deterioration of concrete structure such as cracking, delamination and spalling can be occur due to corrosion of reinforcement, which is primary reason of decrease in quality of structure. The major causes for reinforcement corrosion include chloride ingress and carbonation in the concrete structures. Due to this, the volume of embedded steel increases and cracks start appearing. Recent studies have shown great influence of fine materials on the corrosion properties when added in concrete. This paper deals with showcasing the effect of various fine mineral additives like silica fume, nano silica, fly ash etc. that can predict the behavior of concrete against corrosion. The blended mixes of these materials were tested for Open Circuit Potential (OCP) and their results are compared. Effect of chemical additive like rust inhibitor is also discussed as the dosage of additive and method of mixing plays an important role to develop corrosion resistant concrete.

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