Novel Technique of Sodium Silicate in Healing of Concrete


Suganya Devi K , Valliammai engineering college; Vignesh K, Valliammai engineering college; Rajapreethi C, Valliammai Engineering College


Sodium Silicate, Polyethylene Glycol, Calcium Silica Hydrate, Sodium Silica Hydrate, And Cracks Up To 2mm


Self-healing of concrete is done by using many things such as bacteria, polymers etc. In this project we have tried the self-healing of concrete by using chemicals. The chemicals are sodium silicate, and polyethylene glycol. Here the sodium silicate will acts as healing agent which is replaced directly to the water. Polyethylene glycol is used to increase the compressive strength and mainly for self-curing of concrete. It is added to the water of about 2% on both combinations. The sodium silicate that are added will reacts calcium hydroxide and forms sodium silica hydrate which is a gel, that has the capacity to heal the cracks and increase its strength up to 30%. In this experimental study we have analysed that the sodium silicate heals the crack completely and also increases strength in both self and water curing. Here the water curing is done in addition to polyethylene glycol. The obtained sodium silica hydrate is used to heal the cracks and the formed calcium silica hydrate heals the crack and also acts as corrosive inhibitor.

Other Details

Paper ID: IJSRDV4I30279
Published in: Volume : 4, Issue : 3
Publication Date: 01/06/2016
Page(s): 142-145

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