<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The partial replacement of cement by supplementary cementitious materials is an opportunity for reducing fossil energy consumption and greenhouse gas emissions. In this study, forty (40) pastes were formulated by applying a 4-factor mixture plan, consisting of cement, glass powder (GP), superplasticizer and water. Third order models “special cubic” established for the flow time, spreading diameter, and flow velocity, responses were statistically significant. The analysis of the models allowed the study of the individual and combined effects of the different factors, highlighting the predominant effect of the superplasticizer on the dispersion GP fines. The multi-criteria optimization allowed the development of two optimal pastes SCP1 and SCP2 incorporating 25 and 7% GP, respectively. SCP1 was chosen because at this GP amount, unlike at 28 days, the paste presents the best strengths at 90 days with 4.5% increase for flexural tensile strength and 15.69% increase for compressive strength while maintaining satisfactory workability.</p>
</abstract>

The partial replacement of cement by supplementary cementitious materials is an opportunity for reducing fossil energy consumption and greenhouse gas emissions. In this study, forty (40) pastes were formulated by applying a 4-factor mixture plan, consisting of cement, glass powder (GP), superplasticizer and water. Third order models “special cubic” established for the flow time, spreading diameter, and flow velocity, responses were statistically significant. The analysis of the models allowed the study of the individual and combined effects of the different factors, highlighting the predominant effect of the superplasticizer on the dispersion GP fines. The multi-criteria optimization allowed the development of two optimal pastes SCP1 and SCP2 incorporating 25 and 7% GP, respectively. SCP1 was chosen because at this GP amount, unlike at 28 days, the paste presents the best strengths at 90 days with 4.5% increase for flexural tensile strength and 15.69% increase for compressive strength while maintaining satisfactory workability.

Optimization of a Self-Compacting Paste Based on Glass Powder Using Mixture Design and the Desirability Function

Laboratory of Civil Engineering Materials and Environment

Selected Scientific Papers - Journal of Civil Engineering

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

The partial replacement of cement by supplementary cementitious materials is an opportunity for reducing fossil energy consumption and greenhouse gas...

Optimization of a Self-Compacting Paste Based on Glass Powder Using Mixture Design and the Desirability Function

Published Online: Dec 29, 2023

Page range: -

DOI: https://doi.org/10.2478/sspjce-2023-0003

Keywords
desirability function, self-compacting paste, mixture design, glass powder, fresh properties, recycling, environment, compressive strength

© 2023 Messaouda Ch. Boulkhiout et al., published by Sciendo

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

Optimization of a Self-Compacting Paste Based on Glass Powder Using Mixture Design and the Desirability Function

Published Online: Dec 29, 2023

Page range: -

DOI: https://doi.org/10.2478/sspjce-2023-0003

Keywordsdesirability function, self-compacting paste, mixture design, glass powder, fresh properties, recycling, environment, compressive strength

© 2023 Messaouda Ch. Boulkhiout et al., published by Sciendo

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

Keywords
desirability function, self-compacting paste, mixture design, glass powder, fresh properties, recycling, environment, compressive strength