The grey blue tandoor is a natural limestone with soft white veining which adds depth to its appearance. The antique taste in decoration has made this stone popular amongst architects world over. This stone features subtle texture with hard wearing surface. The versatility of the tandoor blue limestone makes it an ideal for all flooring applications including conservatories, hallways, bathrooms and kitchens floors. It is also perfect for wall cladding, entrance doorway, patio, paving, etc. Tandoor blue is available in different finishes and can be cut to the sizes required by the customers.
Place of Origin : Tandur
Physically, Limestone are Quite impervious, Hard, Compact, fine to very fine grained calcareous rocks of sedimentary nature.
Hardness - 3 to 4 on Moh's Scale
Density - 2.5 to 2.65 Kg/m3
Compressive Strength - 1800 to 2100 Kg/cm2
Water Absorption - Less than 1%
Porosity - Quite low
Weather Impact - Resistant
Chemically, both limestone and marbles are siliceous calcium carbonate rocks.
Lime (CaO) - 38-42%
Silica (SiO2) - 20-25%
Alumina (Al2O3) - 2-4%
Other Oxides like Na, Mg - 1.5 to 2.5%
Loss On Ignition (LOI) - 30-32%
Limestone, like marble and other calcareous stones, are referred to as acid sensitive. Calcareous stones are readily dissolved in acid, therefore acidic products should not be used on limestone and marbles.