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

<p>The article presents the results of a study involving the properties of flax and hemp-based lightweight concretes as well as the initial characteristics of different straw-based materials. A comparison of straw-based lightweight concretes with and without ordinary Portland cement (OPC) showed that hemp concrete has a 5.6 % higher strength at a 10% deformation, and at the same time, has a 13% greater thermal conductivity coefficient than flax concrete. The physical-chemical study based on a thermal analysis in an air environment has shown that the overall picture of thermal degradation for flax and hemp concretes is similar. Nevertheless, additional peaks of mass loss have been defined for flax concrete. The demonstrated exothermal process is a positive aspect, considering the life cycle of the material and the recycling stage. The paper proposes reference points for the development of new building materials based on straw.</p>
</abstract>

The article presents the results of a study involving the properties of flax and hemp-based lightweight concretes as well as the initial characteristics of different straw-based materials. A comparison of straw-based lightweight concretes with and without ordinary Portland cement (OPC) showed that hemp concrete has a 5.6 % higher strength at a 10% deformation, and at the same time, has a 13% greater thermal conductivity coefficient than flax concrete. The physical-chemical study based on a thermal analysis in an air environment has shown that the overall picture of thermal degradation for flax and hemp concretes is similar. Nevertheless, additional peaks of mass loss have been defined for flax concrete. The demonstrated exothermal process is a positive aspect, considering the life cycle of the material and the recycling stage. The paper proposes reference points for the development of new building materials based on straw.

Comparative Study of Lightweight Concretes Based on Hemp and Flax Straw

Department of Materials Engineering and Physics, Civil Engineering Faculty

Slovak University of Technology in Bratislava

Department of Material Engineering/Institute of Environmental Engineering, Faculty of Civil Engineering

Department of Reinforced-Concrete and Stone Constructions, State Higher Education Establishment

Slovak Journal of Civil Engineering

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

{"article-title":"Comparative Study of Lightweight Concretes Based on Hemp and Flax Straw"}

The article presents the results of a study involving the properties of flax and hemp-based lightweight concretes as well as the initial characteristics of...

Comparative Study of Lightweight Concretes Based on Hemp and Flax Straw

Published Online: Jan 07, 2023

Page range: 11 - 16

DOI: https://doi.org/10.2478/sjce-2022-0023

Keywords
Flax, Hemp, Straw, Lightweight concrete, Energy efficiency, Sustainable development

© 2022 Maryna Babenko et al., published by Sciendo

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

Comparative Study of Lightweight Concretes Based on Hemp and Flax Straw

Published Online: Jan 07, 2023

Page range: 11 - 16

DOI: https://doi.org/10.2478/sjce-2022-0023

KeywordsFlax, Hemp, Straw, Lightweight concrete, Energy efficiency, Sustainable development

© 2022 Maryna Babenko et al., published by Sciendo

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

Keywords
Flax, Hemp, Straw, Lightweight concrete, Energy efficiency, Sustainable development