This research discusses the use of historic bio-based binders for possible material enhancement of rammed earth constructions in Northwestern Europe. Potential material enhancements of rammed earth are concluded by considering the research scope and a summary of the history of rammed earth. With the use of an overview and a matrix of potential (historic) bio-based binders, the most suitable binders for material enhancement are concluded. Experimental research is conducted using samples containing beet sugar products and samples containing chicken egg. Additionally, samples containing cement and samples without any binder are tested, to compare the changes in the material behaviour. For this testing, testing methods are designed. The research findings suggest that dehydrated chicken egg albumen as a binder significantly improves rammed earth material in resistance against weathering (water, frost, abrasion).