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AGM 2023 Abstract Hempcrete, Flaxcrete and Canolacrete: Tests of Thermal Conductivity; Compressive, and Tensile Strengths
Authors: Dylan Luc Patrick
Identifier: CSBE23161
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Published in: CSBE-SCGAB Technical Conferences » AGM Lethbridge 2023
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Description: Research was done on hempcrete and like products such as flaxcrete and canolacrete to determine their thermal conductivity. Hempcrete is potential sustainable building material substitute for insulation as it uses leftover plant stalk after crop harvesting has been completed. Because the main ingredient is a waste material, it has great potential as a lower carbon emission alternative to current insulations. The research was done for a local builder that is currently using hempcrete (a mixture of hemp hurd, lime, cement and water) and wanted to verify the R-value. Batches of the different cretes were made using identical mixing ratios and were cured in box molds. Additionally, cylindrical molds were used to create samples for compressive and tensile tests and the low strength results confirmed that these materials are best suited as insulation products and not for load bearing applications. All blocks cured for a minimum of 28 days to let the cement obtain a near-full cure, then the thermal conductivity using measured using a Fox 314 and this was translated into R-value per inch. The R-value per inch for Flaxcrete was found to be 4.357, for hempcrete it was 5.186, and for canolacrete it was 4.416. For comparison these values are better than the 4.3 R-value per inch offered by the commonly used fiberglass batts and rolls. Research like this is an important part of developing standards and obtaining information so that these cretes can be easily permitted for commercial use to construct greener homes for the future.
Keywords: Hempcrete Flaxcrete Canolacrete thermal conductivity
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Pages -
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Date: 2023-07-23
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Conference name: CSBE/SCGAB 2023 Annual Conference, Lethbridge, Alberta, 23-26 July 2023.
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Type: Poster
Format:
Publication type: Text.Abstract
Source:
Relation:
Coverage: North_America
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Research was done on hempcrete and like products such as flaxcrete and canolacrete to determine their thermal conductivity. Hempcrete is potential sustainable building material substitute for insulation as it uses leftover plant stalk after crop harvesting has been completed. Because the main ingredient is a waste material, it has great potential as a lower carbon emission alternative to current insulations. The research was done for a local builder that is currently using hempcrete (a mixture of hemp hurd, lime, cement and water) and wanted to verify the R-value. Batches of the different cretes were made using identical mixing ratios and were cured in box molds. Additionally, cylindrical molds were used to create samples for compressive and tensile tests and the low strength results confirmed that these materials are best suited as insulation products and not for load bearing applications. All blocks cured for a minimum of 28 days to let the cement obtain a near-full cure, then the thermal conductivity using measured using a Fox 314 and this was translated into R-value per inch. The R-value per inch for Flaxcrete was found to be 4.357, for hempcrete it was 5.186, and for canolacrete it was 4.416. For comparison these values are better than the 4.3 R-value per inch offered by the commonly used fiberglass batts and rolls. Research like this is an important part of developing standards and obtaining information so that these cretes can be easily permitted for commercial use to construct greener homes for the future.
Keywords: Hempcrete Flaxcrete Canolacrete thermal conductivity
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2023-07-23
Technical field:
Conference name: CSBE/SCGAB 2023 Annual Conference, Lethbridge, Alberta, 23-26 July 2023.
Session name:
Other information:
Type: Poster
Format:
Publication type: Text.Abstract
Source:
Relation:
Coverage: North_America
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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