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

<p>This study is aimed at the application of alternative binder (AB) into bio-aggregate-based composite. The technically important parameters (density, thermal conductivity, water absorption and compressive strength) of 28, 60 and 90 days hardened green composites containing chemically and physico-chemically modified hemp hurds (HH) with AB compared to the Portland cement (PC) are presented. Testing of two reference bio-composites with original HH confirmed higher values of compressive strength and thermal conductivity unlike water absorption for all hardened specimens based on alternative binder (MgO-cement) compared to conventional PC. Changes in the final properties of hardened bio-composites were affected by treatment process of organic filler and alkaline nature of MgO-cement. The combination of purified HH by ultrasound treatment and AB appears to be promising for preparation of bio-based composite material with better properties compared to PC. In this paper, other option of the preparation of bio-composite system based on original (non-treated) filler and binder consisting of optimal activated MgO and silica fume is presented.</p>
</abstract>

This study is aimed at the application of alternative binder (AB) into bio-aggregate-based composite. The technically important parameters (density, thermal conductivity, water absorption and compressive strength) of 28, 60 and 90 days hardened green composites containing chemically and physico-chemically modified hemp hurds (HH) with AB compared to the Portland cement (PC) are presented. Testing of two reference bio-composites with original HH confirmed higher values of compressive strength and thermal conductivity unlike water absorption for all hardened specimens based on alternative binder (MgO-cement) compared to conventional PC. Changes in the final properties of hardened bio-composites were affected by treatment process of organic filler and alkaline nature of MgO-cement. The combination of purified HH by ultrasound treatment and AB appears to be promising for preparation of bio-based composite material with better properties compared to PC. In this paper, other option of the preparation of bio-composite system based on original (non-treated) filler and binder consisting of optimal activated MgO and silica fume is presented.

Green Building Materials Based on Waste Filler and Binder

Civil and Environmental Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Green Building Materials Based on Waste Filler and Binder"}

This study is aimed at the application of alternative binder (AB) into bio-aggregate-based composite. The technically important parameters (density, thermal...

Green Building Materials Based on Waste Filler and Binder

Publié en ligne: 09 déc. 2021

Pages: 542 - 548

DOI: https://doi.org/10.2478/cee-2021-0055

Mots clés
Green composite, Bio-aggregate, Hemp hurds, MgO-cement, Silica fume

© 2021 Nadezda Stevulova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Green Building Materials Based on Waste Filler and Binder

Publié en ligne: 09 déc. 2021

Pages: 542 - 548

DOI: https://doi.org/10.2478/cee-2021-0055

Mots clésGreen composite, Bio-aggregate, Hemp hurds, MgO-cement, Silica fume

© 2021 Nadezda Stevulova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Green composite, Bio-aggregate, Hemp hurds, MgO-cement, Silica fume