Open AccessInfluence of production on hemp concrete hygrothermal properties: sorption, water vapour permeability and water absorption
Author(s) -
Aime Ruus,
T Koosapoeg,
Markus Pau,
Targo Kalamees,
Mattias Põldaru
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2069/1/012004
Subject(s) - carbonation , materials science , absorption of water , sorption , composite material , thermal insulation , water vapor , permeability (electromagnetism) , thermal conductivity , adsorption , chemistry , membrane , biochemistry , organic chemistry , layer (electronics)
Hemp concrete is considered to be a carbon negative material. Hemp absorbs CO 2 during the growth and lime needs CO 2 for carbonation. The material, which has good thermal insulation properties, is used as a non-bearing wall material or plaster. For such use the hygrothermal properties of a material must be well known especially when indoor insulation is in focus. In the current study hemp concrete produced in two different ways was in focus and following the hygrothermal properties of hemp concrete as a building material were studied: water absorption (EN 1015-18), water vapour sorption (EN 12571), water vapour permeability (EN 12572) and thermal conductivity (EN 12667). The results of the study can be used in hygrotheramal calculations and modelling.