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Moisture Buffering of Hemp-Lime with Biochar and Rape Straw-Lime as Surface Materials for a Stable Indoor Climate

Strandberg, Paulien LU and Balksten, Kristin (2023) 5th International Conference on Bio-Based Building Materials
 In RILEM Bookseries 45. p.144-157
Abstract
An appropriate and stable indoor climate in museums is crucial to guarantee an appropriate preservation of our cultural heritage. Depending on the collection, indoor temperature and relative humidity need to be kept within a certain range. Fluctuations in temperature and relative humidity could cause damage to museum artefacts and may require higher energy needs than necessary. Biochar is a material of which the use is relatively new in building materials. Previous studies have shown that biochar has unique moisture properties with a high surface area, high porosity and therefore high capability of moisture uptake. In Southern Sweden there are several biochar manufacturers that produce biochar from local biomasses such as seaweed,... (More)
An appropriate and stable indoor climate in museums is crucial to guarantee an appropriate preservation of our cultural heritage. Depending on the collection, indoor temperature and relative humidity need to be kept within a certain range. Fluctuations in temperature and relative humidity could cause damage to museum artefacts and may require higher energy needs than necessary. Biochar is a material of which the use is relatively new in building materials. Previous studies have shown that biochar has unique moisture properties with a high surface area, high porosity and therefore high capability of moisture uptake. In Southern Sweden there are several biochar manufacturers that produce biochar from local biomasses such as seaweed, gardening wastes and residues from greenhouses.

The aim of this project was to investigate the impact of hygroscopic surface materials on the indoor climate of buildings, focusing on moisture buffering and hygrothermal properties. The building materials that were studied were hemp-lime (with and without biochar) and rape straw-lime. Passively influencing the indoor climate by choosing appropriate surface materials could contribute to lower energy needs and less need for mechanical ventilation in historic buildings and museums without the need for excessive HVAC solutions. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Bio-Based Building Materials. : Proceedings of ICBBM 2023 - Proceedings of ICBBM 2023
series title
RILEM Bookseries
editor
Amziane, Sofiane ; Merta, Ildiko and Page, Jonathan
volume
45
pages
14 pages
publisher
Springer
conference name
5th International Conference on Bio-Based Building Materials<br/>
conference location
Vienna, Austria
conference dates
2023-06-21 - 2023-06-23
external identifiers
  • scopus:85162238334
ISBN
978-3-031-33464-1
978-3-031-33465-8
DOI
10.1007/978-3-031-33465-8_12
language
English
LU publication?
yes
id
83aa07b2-f8f9-4d2c-aa51-b54ccf8a0ff9
date added to LUP
2023-08-31 09:40:01
date last changed
2024-04-19 00:47:17
@inproceedings{83aa07b2-f8f9-4d2c-aa51-b54ccf8a0ff9,
  abstract     = {{An appropriate and stable indoor climate in museums is crucial to guarantee an appropriate preservation of our cultural heritage. Depending on the collection, indoor temperature and relative humidity need to be kept within a certain range. Fluctuations in temperature and relative humidity could cause damage to museum artefacts and may require higher energy needs than necessary. Biochar is a material of which the use is relatively new in building materials. Previous studies have shown that biochar has unique moisture properties with a high surface area, high porosity and therefore high capability of moisture uptake. In Southern Sweden there are several biochar manufacturers that produce biochar from local biomasses such as seaweed, gardening wastes and residues from greenhouses.<br/><br/>The aim of this project was to investigate the impact of hygroscopic surface materials on the indoor climate of buildings, focusing on moisture buffering and hygrothermal properties. The building materials that were studied were hemp-lime (with and without biochar) and rape straw-lime. Passively influencing the indoor climate by choosing appropriate surface materials could contribute to lower energy needs and less need for mechanical ventilation in historic buildings and museums without the need for excessive HVAC solutions.}},
  author       = {{Strandberg, Paulien and Balksten, Kristin}},
  booktitle    = {{Bio-Based Building Materials. : Proceedings of ICBBM 2023}},
  editor       = {{Amziane, Sofiane and Merta, Ildiko and Page, Jonathan}},
  isbn         = {{978-3-031-33464-1}},
  language     = {{eng}},
  pages        = {{144--157}},
  publisher    = {{Springer}},
  series       = {{RILEM Bookseries}},
  title        = {{Moisture Buffering of Hemp-Lime with Biochar and Rape Straw-Lime as Surface Materials for a Stable Indoor Climate}},
  url          = {{http://dx.doi.org/10.1007/978-3-031-33465-8_12}},
  doi          = {{10.1007/978-3-031-33465-8_12}},
  volume       = {{45}},
  year         = {{2023}},
}