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The term is applied to rocks
consisting essentially of Calcite. There are number of verities of
Lime Stone available in different colors meant for different
applications mainly for flooring and cladding. Kota Stone is one of
most popular lime stone. the surface may be either natural cleft
both faces, one face honed or mirror polished. |
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LIMESTONE PHYSICAL
PROPERTIES |
| 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 |
|
LIMESTONE CHEMICAL
PROPERTIES |
| 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. |
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