Durability performance and microstructure analysis of nano engineered blended concrete

In the present study, the performance of the nano engineered blended concrete was evaluated for the durability performance by conducting Rapid Chloride Penetration test, water absorption and sorptivity which represent the measure of water penetration through the matrix when exposed to aggressive age...

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Veröffentlicht in:Cleaner Materials 2022-12, Vol.6, p.100155, Article 100155
Hauptverfasser: Praseeda, D., Srinivasa Rao, K.
Format: Artikel
Sprache:eng
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Zusammenfassung:In the present study, the performance of the nano engineered blended concrete was evaluated for the durability performance by conducting Rapid Chloride Penetration test, water absorption and sorptivity which represent the measure of water penetration through the matrix when exposed to aggressive agents present in the environment. All the formulated mixes of blended concrete bearing vetrified tiles powder, silica fume and fly ash with and without nano reinforcement were tested and analysed at 28, 56 and 91 day curing periods. The dosage rate of the Carbon Nano Tubes varied from 0.01% to 0.1% by weight of the binder. From the analysed results, the mix with 0.05% of the Carbon Nano Tubes present by weight of the cementitious materials exhibited noticeably less water absorption value of less than 3%, less sorptivity value and very less I value obtained from the Rapid Chloride penetration test. The SEM-EDS analysis was carried out to determine the morphology of the matrix and the intensities of the crystalline phases formed, was determined by XRD analysis. From the analysis carried out, it was observed that the mix with 0.05% of the addition of Carbon Nano Tubes serves to be the optimum mix. The same mix has also proven to be highly durable which can be implemented as a engineering concrete to be used in harsh environments.
ISSN:2772-3976
2772-3976
DOI:10.1016/j.clema.2022.100155