Correlations for limestone properties used in cultural heritage monuments in Malta

Abstract

The aim of this paper is to identify mathematical correlations between the physical and geochemical properties of first quality limestone extracted from the Lower Globigerina Member. Based on published results, it can be confirmed that very strong correlations exist for (i) apparent density and uniaxial compressive strength when limestone is in a saturated condition, and (ii) ultrasonic pulse velocity – both perpendicular and parallel to the bedding plane – and uniaxial compressive strength when limestone is in either oven-dried or saturated conditions. Stronger correlation is present with respect to apparent density when limestone is oven-dried and color. The correlations for color and (a) ferric oxide, and (b) loss-on-ignition are also strong.