Biobased Building

To see final poster Bestand:The effect of salt in Zeeland Clay on Cob.pdf

Objective of the research:

Discover the effects of salt on local clay in the application of earth building (cob) by:

comparing results of strength and thermal insulation, between normal and less salt samples, also with effect of humidity.

Outcomes:

·       Salt content of local clay: 1,066%.

·       In comparison, the limit of total soluble salt allowed in the German Code DIN 18945 is 0.12%(Schroeder, 2012)

·       Optimum Cob Mix Ratio: 3:1 (sand : clay)

·       Sieve Analysis and Plasticity Test (Cob Mix) (see Figure 1 and 2)

Compression test and thermal conductivity test have not been executed yet