Vulkaniti Stolova kao građevinski kamen

Abstract

Vulkaniti Stolova južno od Kraljeva predstavljeni su malim vulkanitskim telima dacito-andezita. Ovi vulkaniti su od otvaranja kamenoloma Kamenica pored reke Ribnice korišćeni za dobijanje kocke, agregata i ploča za oblaganje. Fizičko-mehanička svojstva ovog kamena, kao i njegov mineraloško- petrološki sastav ispitivani su u Institutu IMS iz Beograda dugi niz godina, i prikazani u ovom radu. Iako su fizičko-mehanička svojstva svežijih delova stenske mase dobra, zbog nedostatka monolitnosti, intenzivne ispucalosti, heterogenog izgleda i nepovoljnog lučenja, ovi vulkaniti nisu interesantni sa aspekta arhitektonskog građevinskog kamena, ali ispunjavaju uslove za primenu kao tehnički građevinski kamen, i upravo navedena svojstva olakšavaju njihovu eksploataciju.

Volcanic rocks of the Stolovi Mt., located to the south of Kraljevo (central Serbia) are of dacite-andesite composition, intruded as small volcanic bodies into Mesozoic serpentinites. Since the opening of Kamenica quarry on the river Ribnica, these volcanic rocks have been quarried and used for production of cubes, aggregate and small slabs. Technical properties of the stone and petrographic examinations of the rock have been performed in the Materials testing institute in Belgrade for many decades and are here presented. Technical properties of the fresh rock mass zones are satisfying the demands of Serbian standards both for dimensional and technical stone. However, the use as dimensional stone is not possible due to lack of monoliths, intense tectonic fracturing, heterogenic appearance and irregular jointing of the rock, but these characteristics facilitate their quarrying as an aggregate.