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Thursday, 17 October 2019
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Raw materials & technologies, Technologies, Nanotechnology

Nano-Silica influences the properties of recycled concrete

Thursday, 24 April 2014

A study addresses the effect of incorporation of colloidal Nano-Silica on the behaviour of concrete containing 100% recycled coarse aggregate.

In their work, Indian researchers produced concrete mixes containing both natural and recycled aggregate by replacing a fraction of Portland cement 0.75%, 1.5% and 3% of colloidal Nano-Silica (NS) respectively.

Non-destructive parameters are enhanced

The results of experimental investigation depicts that compressive strength, tensile strength and non-destructive parameters are enhanced due to addition of NS. Moreover, the study reveals that the characteristics of recycled aggregate concrete resembles with that of natural aggregate concrete with the addition of little amount (3%) of Nano-Silica.

The study is published in: Construction and Building Materials, Volume 55, 31 March 2014.

Researchers produced concrete mixes containing both natural and recycled aggregate Source: Stefan Körber - Fotolia.com

Researchers produced concrete mixes containing both natural and recycled aggregate Source: Stefan Körber - Fotolia.com

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