This thesis concerns the relationship between research in experimental archaeology and the intangible of the past. Only a quarter of technological experiments in a sample of 100 studies addresses the intangible of technological practice, and this project sets out to explore if there are conceptual or practical obstacles for this low rate. The thesis begins with an in-depth examination of experimental archaeology and the criteria, paradigms and theories that determine its practice. Through this study, elements of the dichotomy positivism/postmodernism are uncovered and discussed. To resolve this dualism, a third paradigm – philosophical pragmatism – is introduced as an alternative. This conceptual debate represents Part I, and is subsequently collated into a methodological framework for the creation of a typified experiment. Part II consists of the experimental segment of this study, in search for practical obstacles for the exploration of the intangible. Through experimenting with Iron Age Bucket-shaped pots, Mesolithic faceted pebbles and Middle Palaeolithic birch bark tar production, different components of an experiment are highlighted for investigation. An element that comes forward as problematic is the relationship between experimental archaeologists and science ideals that is underscored by experimental tradition. Conclusively, the final discussion leaves the conceptual and practical barriers that may prevent archaeologists from studying the intangible aspects of technology overturned. In sum, this may enable experimental archaeologists to take a fuller view of their own practice and that of the people of the past.

Trots att tjära har använts av människan under en väldigt lång tid har tjärframställning ägnats förvånansvärt lite uppmärksamhet inom arkeologin. Trots att det i Sverige finns tusentals tjärframställningsplatser registrerade har endast ett fåtal av dessa grävts ut. Denna uppsats syftar till att addera kunskap om historisk tjärframställning och om spår av denna kan identifieras med hjälp av Miljö- och geoarkeologiska metoder. Genom att analysera jordprover från en historisk tjärdal demonstrerar denna uppsats hur fosfatanalys (CitP), magnetisk suceptibilitet (MS), röntgenfluorescens (XRF) och nära infraröd reflektansspektroskopi (NIRS) kan vara viktiga verktyg för arkeologisk forskning om historisk tjärframställning.