SlovenščinaCatalogue of Slovene clays

sample10Vogrsko · Slovene Littoral

45.927207 13.710852

Collected by Eva Bičič

Clay Pit Vogrsko – Vogrsko · Slovene Littoral
Clay Pit Vogrsko
Photo Eva Bičič

Beginnings of brickworks in the municipality of Renče – Vogrsko

The beginnings of the brickworks in our area date back to the distant Roman period, when a Roman road that connected Aquileia with Emona of the time ran in this area. According to the written sources, Ad Fornulos (At the furnaces) was one of the many outposts based along this route. It was supposed to be located in the area between Bilje and Bukovica. Already in 1982, several kilns in the area of Bilje (Križ Cijan), as well as a work facility and a canal linked to a firebox, were discovered during the archeo- logical excavations.

https://www.rence-vogrsko.si/turizem/kulturne-znameni-

tosti/2017053014281611/opekarstvo_in_zidarstvo

The clay was dug by Eva Bičič

Sample 10 is clay from Vogrsko (Slovene Littoral). The recommended firing temperature is 900–1050 °C. The beginning of sintering is at 1050–1200 °C. At 1100 °C shrinkage is 9 % and porosity 3 %.

Clay samples

  1. Sample 10 – 800 °C800 °C
  2. Sample 10 – 900 °C900 °C
  3. Sample 10 – 1000 °C1000 °C
  4. Sample 10 – 1100 °C1100 °C
  5. Sample 10 – 1200 °C1200 °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. 2 % = 1.0 mm2 % = 1.0 mm
  5. 0.7 % = 0.2 mm0.7 % = 0.2 mm
  6. 0.7 % = 0.05 mm0.7 % = 0.05 mm