Place
of Origin : Tandur
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 |
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. |
