UTJECAJ STRUKTURNO TEKSTURNIH ZNAČAJKI I DIJAGENETSKIH PROCESA NA POROZNOST ARHITEKTONSKOG KAMENA

Uzorci arhitektonskog kamena vapnenaca te po jedan vapne-nački konglomerat i breča podvrgnuti su određivanju upijanja vode, gustoće, prostorne mase te apsolutne i relativne poroznosti. Upijanje vode i relativna poroznost određeni su u uvjetima atmosferskog tlaka i dodatno pod podtlakom. Posebna pozornost posvećena je određivanju značajki u svezi s vrstama i utjecajem pora na dobivene parametre. Dobivene vrijednosti prikazane grafički. posljedica su strukturno-teksturnih i petrografskih značajki, geneze i različitih postgenetskih procesa (tektonika i dijageneza). Posebno je analiziran utjecaj povećanja upijanja vode i relativne poroznosti nakon tretiranja u uvjetima podtlaka te promjene upijanja vode u odnosu na prostornu masu uzoraka kamena.
A range of lest methods was performed on dimension stone samples prevail limestones and carbonate conglomerate and brec¬cia to determine water absorption, density, bulk density, absolute (total) and relative (effective) porosity. Water absorption and relative porosity were tested under atmospheric pressure and additionally under subpressure conditions. The influence of pore properties on the resulting parameters is evaluated attentively. The obtained values which are a consequence of structural-texlural and petrographic characteristics, origin and post genetic processes (tectonics and diagenesis) are presented graphicaly. The influence of water absorption enhancement and relative porosity after subpressure treatment was analyzed together with water absorption variation compared to stone bulk density.