Ökobaudat
Processing
Our goal at CarbonSpace is to create comparable data across projects, therefore products are simplified.
We analyze each product set and determine representative values as a sane default in our database.
All products come with a weight and density and most lifecycle phases modules are included with the exception of A4-Transport and C2-Transport. We believe project specific assumptions for transport are more useful as transport is often the biggest source of incomparibility and discussion.
Ökobaudat modules in CarbonSpace
LCA Module
A1-A3
A4
A5
B1-B6
B7
C1
C2
C3-C4
D
Included
✔️
❌
✔️
✔️
❌
✔️
❌
✔️
✔️
LCA Phase
A
-
A
B
-
C
-
C
D
There are no rows in this table
Ökobaudat explained
The database consists of 11 main categories with over 2000 items. Some categories are represented better than others with mineral building products such as cement being the most common. With over 300 datapoints for cement, ranging from 0 to 800 kgCO2 per kg of cement, it may be challenging to choose the right cement. So how do we reduce this number to understand a sensible impact of cement?
Products can be challenging to compare due to differences in units, dataset type and completeness.
Within the entire database modules A, C and D are generally well reported. Products vary greatly in unit with m2, m3, kg and pieces being the most common. Densities and weights are available in 75% of products, meaning it will not always be possible to compare similar product sheets.
By analysing the data on a category basis we can understand what sensible numbers would be and make well founded assumptions on weight and density, creating a more hollistic overview of materials for early-stage design that can be fine-tuned in later stages.
In determining our basic concrete values for a “Regular Concrete” (291 kgCO2/m3) and “Low Impact Concrete” (164 kgCO2/m3) both the ready-mix concretes and cements are analysed.
We see data clumping between 150 and 230 kgCO2/m3, as well as around 300 kgCO2/m3. The first range indicates concretes with less cement or other aggregates, where the latter indicates more regular concrete. For regular concrete a base point of Ready-mix concrete C30/37 is used. For low impact concrete CEMIII 42,5 is used alongside other materials in a concrete mix as this value is only available in kg.
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