SlovenščinaCatalogue of Slovene clays

sample59Trebče · Kozjansko

46.038815 15.607954

Collected by Ljubica Zgonec Zorko

Abandoned Pottery Workshop in Trebče – Trebče · Kozjansko
Abandoned Pottery Workshop in Trebče
Photo Ljubica Zgonec Zorko

Trebče

In recent years, the awareness of the importance of preserving the intangible cultural heritage has been slowly increasing in Slovenia. In order to preserve it, we must not only recognize and appreciate this kind of heritage but also sustain, revive and tolerate it. Considering that the pottery tradition for Slovenia has always been of utmost importance, it is absurd that there has been no formal education for potters for many decades. In the long term, we can only follow the challenges of modern society with a respectful attitude towards the past and openness to the future.

Ljubica Zgonec Zorko

Sample 59 is clay from Trebče (Kozjansko). The recommended firing temperature is 900–1100 °C. The beginning of sintering is at 1100–1250 °C. At 1100 °C shrinkage is 15 % and porosity 6 %.

Clay samples

  1. Sample 59 – 800 °C800 °C
  2. Sample 59 – 900 °C900 °C
  3. Sample 59 – 1000 °C1000 °C
  4. Sample 59 – 1100 °C1100 °C
  5. Sample 59 – 1200 °C1200 °C
  6. Sample 59 – 1300 °C1300 °C
segrevanjeheating uppriporočena temp. žganjarecommended firing temperatureszačetek sintranjathe beginning of sinteringmehčanjesofteningžganje/firing °C%%00224466881010121214141616181820202222suha glina/dry clay900 °C1000 °C1100 °C1200 °C1300 °C
  • segrevanje
    heating up
  • priporočena temp. žganja
    recommended firing temperatures
  • začetek sintranja
    the beginning of sintering
  • mehčanje
    softening
%048121620suhadry9001000110012001300°C
poroznost/porosity %skrčki/shrinkage %

Clay preparation for testing

  1. unprocessed clayunprocessed clay
  2. sifted and dried claysifted and dried clay
  3. 012341.00.20.05%grain size in mm
  4. 1 % = 1.0 mm1 % = 1.0 mm
  5. 0.5 % = 0.2 mm0.5 % = 0.2 mm
  6. 0.1 % = 0.05 mm0.1 % = 0.05 mm