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<p>The aim of this research is to assess the mechanical performance of self-compacting concrete containing different percentages of fine aggregates, produced from the wastes generated by the cement plant industry and construction sites. Eight mixes, incorporating cement kiln dust (CKD) and hardened cement waste with partial fine aggregate replacement of 5%, 10%, 15%, and 20%, were produced and compared with a control mix made with 100% of crushed sand. The workability properties (e.g., flowability, passing ability, and resistance to segregation) and mechanical properties (e.g., compressive, flexural, and splitting tensile strengths) of all mixes were evaluated. The results showed that concretes containing recycled fine aggregates proved to have the best mechanical properties, compared to one made with crushed calcareous sand. However, self-compacting concrete with high mechanical strength could be produced with up to 15% wt. CKD replacement and with 10% wt. hardened cement waste replacement.</p>
</abstract>

The aim of this research is to assess the mechanical performance of self-compacting concrete containing different percentages of fine aggregates, produced from the wastes generated by the cement plant industry and construction sites. Eight mixes, incorporating cement kiln dust (CKD) and hardened cement waste with partial fine aggregate replacement of 5%, 10%, 15%, and 20%, were produced and compared with a control mix made with 100% of crushed sand. The workability properties (e.g., flowability, passing ability, and resistance to segregation) and mechanical properties (e.g., compressive, flexural, and splitting tensile strengths) of all mixes were evaluated. The results showed that concretes containing recycled fine aggregates proved to have the best mechanical properties, compared to one made with crushed calcareous sand. However, self-compacting concrete with high mechanical strength could be produced with up to 15% wt. CKD replacement and with 10% wt. hardened cement waste replacement.

Mechanical Properties of Self-compacting Concrete Containing Fine Aggregates from Cement Kiln Dust and Hardened Cement Waste

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The aim of this research is to assess the mechanical performance of self-compacting concrete containing different percentages of fine aggregates, produced from...

Mechanical Properties of Self-compacting Concrete Containing Fine Aggregates from Cement Kiln Dust and Hardened Cement Waste

Data publikacji: 14 sty 2023

Zakres stron: 1 - 15

DOI: https://doi.org/10.2478/sspjce-2022-0012

Słowa kluczowe
fine CKD aggregate, fine hardened cement aggregate, self-compacting concrete, mechanical performance

© 2022 Leila Kherraf et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mechanical Properties of Self-compacting Concrete Containing Fine Aggregates from Cement Kiln Dust and Hardened Cement Waste

Data publikacji: 14 sty 2023

Zakres stron: 1 - 15

DOI: https://doi.org/10.2478/sspjce-2022-0012

Słowa kluczowefine CKD aggregate, fine hardened cement aggregate, self-compacting concrete, mechanical performance

© 2022 Leila Kherraf et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Słowa kluczowe
fine CKD aggregate, fine hardened cement aggregate, self-compacting concrete, mechanical performance