Volume 38, Issue 5 (September 2010)
Quality Control of Turkish Calcareous Natural Stone Using the Merkont System
In this study, a new statistical derivation system named Merkont (Marble Control) was developed for the quality control of calcareous natural stone types used as industrial marble. A new classification was made via Merkont (Marble Control) system by taking into consideration the porosity values of 45 different natural stones collected from different parts of Turkey. Within the scope of this system, Analysis of Variance: Nested Sampling (Optional) method was used as the statistical system. Natural stones were classified into five different groups on the basis of porosity change. These natural stones were subjected to mineralogical-petrographical analyses for examining the relationship between this classification, porosity types, and checking the accuracy of porosity change limit values. In these analyses, porosity value of very small crystalline marbles was found to be low and the porosity value of the porous travertines was found to be significantly high. In addition, variance range and standard deviation values of each group were reflected in the quality control curve. It was concluded that as the variance range increased, in turn, the quality decreased in parallel with the increase in porosity values of the natural stones.