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Research Article

Effect of nano-sized clay and waste glass powder on rheological and hardened properties of self-compacting concrete

Elaf Khalid Dahamm, Sheelan Mahmoud Hama, Ibrahim A. AL-Jumaily

Department of Civil Engineering, University Of Anbar, Ramadi, Iraq

Keywords

Abstract


Mechanical properties;

Nano-clay;

Rheological properties;

Self-compacting concrete;

Waste glass powder

Two types of pozzolanic materials nano-clay (NC) and waste glass powder (WGP) have been utilized in this work, which has been carried out in three stages. The first stage is to partially replace the cement with nano-clay (2.5, 5, 7.5, and 10%). The second stage is replacing cement with 15% of the waste glass powder, and the third and final stage is partially replacing the waste glass powder partially with nano-clay (2.5%NC+12.5%WGP, 5%NC+10%WGP, 7.5%NC+7.5%WGP, and 10%NC+2.5%WGP). The results were evaluated by studying the rheological and mechanical properties of self-compacting concrete (SCC) for each stage to find out the best replacement ratio for the best properties. The results of the tests on the fresh concrete showed that the nano-clay reduces the fluidity and flowability of the mixtures, while the addition of glass has almost no effect. While the addition of glass and NC leads to an additional decrease in the flowability of the mixture. From the results of mechanical properties, it was found that the mix with 2.5% NC and 12.5% WGP gave the highest strength.

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2023 Reviewer Awards:

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2023 Best Paper Award:

The paper authored by Ferzan Fidan, Naim Aslan, Mümin Mehmet Koç entitled as “Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications” is awarded.



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The paper authored by Ercan Işık, Ehsan Harirchian, Hüseyin Bilgin, Kirti Jadhav entitled as “The effect of material strength and discontinuity in RC structures according to different site-specific design spectra" is awarded.


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