Miljöinverkan av olika grundläggningsmetoder - En jämförelsestudie mellan grundkonstruktioner idag
(2020) In LUTVDG/TVBM VMTL01 20201Division of Building Services
Division of Building Physics
Department of Building and Environmental Technology
Department of Construction Sciences
- Abstract
- Sweden has set a climate goal that emissions generated by businesses within Sweden by 2045 should be at least 85% lower than emissions in 1990. In 2017, the construction and real estate sector accounted for 19 % of Sweden's total greenhouse gas emissions. A large part of a building's climate impact occurs during the product phase. The foundation is part of a building’s design which significantly contributes to a its climate impact. The most common foundation method for Swedish houses today is concrete slab, where cellular EPS is usually used as the underlying insulation. Concrete is one of the most carbon-intensive materials, which is unfortunate for the construction industry's aim for a climate-neutral building sector. Even though... (More)
- Sweden has set a climate goal that emissions generated by businesses within Sweden by 2045 should be at least 85% lower than emissions in 1990. In 2017, the construction and real estate sector accounted for 19 % of Sweden's total greenhouse gas emissions. A large part of a building's climate impact occurs during the product phase. The foundation is part of a building’s design which significantly contributes to a its climate impact. The most common foundation method for Swedish houses today is concrete slab, where cellular EPS is usually used as the underlying insulation. Concrete is one of the most carbon-intensive materials, which is unfortunate for the construction industry's aim for a climate-neutral building sector. Even though climate-enhanced concrete is now on the market, there is still a long way to go until we have reached a climate-neutral building sector. In order to succeed in achieving the set climate goals, the construction industry must partly develop alternative sustainable materials and partly methods that contribute to reduced concrete use and reduced emissions.
An alternative to a concrete slab is a foundation constructed in accordance with the Koljern technique, which is a concrete-free foundation construction. The Koljern foundation construction is constructed with cellular glass panels that are held together with sheet profiles. Cellular glass is an inorganic material that has many advantageous properties, such as good thermal insulation and load-bearing capacity, which makes it an very suitable material to have in the foundation.
In this study, a case study was conducted to investigate the climate impact in the production phase (module A1-A3) of a concrete slab foundation compared to three different slab foundations. A climate-enhanced concrete slab foundation, a foundation with Koljern foundation construction and a foundation that is a combination of the concrete slab foundation and Koljern foundation construction. The climate impact of the materials was taken from the respective supplier's environmental declaration (EPD). The study also compared the possibilities of reusing/ recycling the materials in the various foundation construction. Finally, the properties of the thermal insulation materials of a foundation, cellular glass and cellular EPS, have also been discussed.
The results showed that the foundation that is a combination of the concrete slab foundation and the Koljern foundation construction had the lowest climate impact. Koljern foundation construction had a lower climate impact compared to a concrete slab foundation, regardless of whether it was laid with standard concrete or climate-enhanced concrete. In addition, the Koljern foundation construction is better suited for both re-use and recycling. Cellular glass has the potential to become more prevalent in the future when used in a building foundation to achieve the climate goals and it retains its insulating capacity over a longer period of time (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9016187
- author
- Sulejmani, Shpetim LU
- supervisor
- organization
- course
- VMTL01 20201
- year
- 2020
- type
- M2 - Bachelor Degree
- subject
- keywords
- Foundation, slab foundation, Koljern foundation construction, cellular glass, EPS, thermal insulation, climate impact, LCA, EPD, reuse, recycling
- publication/series
- LUTVDG/TVBM
- report number
- 5123
- other publication id
- LUTVDG/TVBM-20/5123-SE
- language
- Swedish
- id
- 9016187
- date added to LUP
- 2020-06-11 14:58:25
- date last changed
- 2021-01-22 12:28:25
@misc{9016187,
abstract = {{Sweden has set a climate goal that emissions generated by businesses within Sweden by 2045 should be at least 85% lower than emissions in 1990. In 2017, the construction and real estate sector accounted for 19 % of Sweden's total greenhouse gas emissions. A large part of a building's climate impact occurs during the product phase. The foundation is part of a building’s design which significantly contributes to a its climate impact. The most common foundation method for Swedish houses today is concrete slab, where cellular EPS is usually used as the underlying insulation. Concrete is one of the most carbon-intensive materials, which is unfortunate for the construction industry's aim for a climate-neutral building sector. Even though climate-enhanced concrete is now on the market, there is still a long way to go until we have reached a climate-neutral building sector. In order to succeed in achieving the set climate goals, the construction industry must partly develop alternative sustainable materials and partly methods that contribute to reduced concrete use and reduced emissions.
An alternative to a concrete slab is a foundation constructed in accordance with the Koljern technique, which is a concrete-free foundation construction. The Koljern foundation construction is constructed with cellular glass panels that are held together with sheet profiles. Cellular glass is an inorganic material that has many advantageous properties, such as good thermal insulation and load-bearing capacity, which makes it an very suitable material to have in the foundation.
In this study, a case study was conducted to investigate the climate impact in the production phase (module A1-A3) of a concrete slab foundation compared to three different slab foundations. A climate-enhanced concrete slab foundation, a foundation with Koljern foundation construction and a foundation that is a combination of the concrete slab foundation and Koljern foundation construction. The climate impact of the materials was taken from the respective supplier's environmental declaration (EPD). The study also compared the possibilities of reusing/ recycling the materials in the various foundation construction. Finally, the properties of the thermal insulation materials of a foundation, cellular glass and cellular EPS, have also been discussed.
The results showed that the foundation that is a combination of the concrete slab foundation and the Koljern foundation construction had the lowest climate impact. Koljern foundation construction had a lower climate impact compared to a concrete slab foundation, regardless of whether it was laid with standard concrete or climate-enhanced concrete. In addition, the Koljern foundation construction is better suited for both re-use and recycling. Cellular glass has the potential to become more prevalent in the future when used in a building foundation to achieve the climate goals and it retains its insulating capacity over a longer period of time}},
author = {{Sulejmani, Shpetim}},
language = {{swe}},
note = {{Student Paper}},
series = {{LUTVDG/TVBM}},
title = {{Miljöinverkan av olika grundläggningsmetoder - En jämförelsestudie mellan grundkonstruktioner idag}},
year = {{2020}},
}