White Pumice
Pumice
Pumice is a type of extrusive volcanic rock, produced when lava with a very high content of water and gases (together these are called volatiles) is extruded (or thrown out of) a volcano. As the gas bubbles escape from the lava, it becomes frothy. When this lava cools and hardens, the result is a very light rock material filled with tiny bubbles of gas. Pumice is the only rock that floats on water, although it will eventually become waterlogged and sink. It is usually light-colored, indicating that it is a volcanic rock high in silica content and low in iron and magnesium, a type usually classed as rhyolite. If the lava hardens quickly with few volatiles, the resulting rock is volcanic glass, or obsidian. Pumice and obsidian are often found together.
| MAIN ADVANTAGES OF WHITE PUMICE | ||||||
|---|---|---|---|---|---|---|
| SOUND PROOFING | HIGH MECHANICAL STRENGTH | THERMAL INSULATING | HOMOGENOUS QUALITY | NON-COMBUSTIBLE | LOW SPECIFIC WEIGHT | ENVIRONMENT FRIENDLY |
| Technical Data of White Pumice | |
|---|---|
| Thermal Resistance (m2K/w) | 0.55 – 0.70 |
| Thermal Conductivity (W/m.k) | 0.8 – 0.10 |
| Bulk Density (kg/m3) | 280 – 400 |
| Water Absorption (%) | 45 – 62 |
| BUILDING APPLICATIONS | ||
|---|---|---|
| LIGHT WEIGHT STRUCTURAL AND PUMICE BASED CONCRETE BLOCKS |
LIGHT WEIGHT CONCRETE | INSULATIONS AND FLOORING FILLINGS |
| ADVANTAGES OF PUMICE STONE BUILDING PRODUCTS | |||
|---|---|---|---|
| EXCELLENT MECHANICAL STRENGTH-TO- WEIGHT RATIO |
ALL TYPES OF LIGHT WEIGHT CONCRETES CAN BE MANUFACTURED PUMICE STONE |
ALTERING THE COMPOSITION OF LIGHTWEIGHT CONCRETE |
ENHANCING THE STRUCTURE'S FIRE RESISTANCE AND SOUND PROOFING |
| GEOTECHNICAL USES | |
|---|---|
| LIGHT WEIGHT FILLING MATERIAL (SUBSTRATE IN LOOSE SOIL) |
ROAD CONSTRUCTION, PORT PROJECTS, AIRPORT PROJECTS, PLAYING FIELDS |
| PUMICE STONE FEATURES | |||
|---|---|---|---|
| LOW DENSITY | LARGE ANGLE OF INTERNAL FRICTION |
A SATISFACTORY DEFORMATION MODULUS AND VERY GOOD COMPACTION BEHAVIOR |
FULL GRAIN SIZE DISTRIBUTION COUPLED WITH THE LARGE INTERNAL FRICTION ANGLE, INCREASES SLOPE RETENTION MINIMIZING THE NEED FOR GEOTEXTILES |
| AGRICULTURAL USES | ||||||
|---|---|---|---|---|---|---|
| SOILLESS HORTICULTURE |
GREEN ROOFS | SOIL IMPROVEMENT |
SOIL COVERAGE | INGREDIENT FOR MIXTURES AND SOILS FOR CULTIVATIONS |
IMPROVEMENT AND DRAINAGE OF LAWNS |
URBAN VEGETABLE PRODUCTION |
| FILTRATION USES / APPLICATIONS | ||||
|---|---|---|---|---|
| WASTE WATER TREATMENT (USED BOTH IN LARGE INDUSTRIAL APPLICATIONS LIKE TREATMENT PLANTS AND IN SMALL POINT-OF-USE TREATMENT CARTRIDGES) | DRINKING WATER (THE MULTI-FACETED STRUCTURE AND INERT PURITY OF PUMICE MAKES IT IDEAL TO CAPTURE AND HOLD IMPURITIES) | REVERSE OSMOSIS PROCESSES (PUMICE FILTRATION MEDIA SERVES AS AN EXCELLENT PRE-TREATMENT LAYER IN REVERSE OSMOSIS AND DESALINATION PROCESSES) | SLUDGE DE-WATERING (ADDING PUMICE TO SEWAGE AND INDUSTRIAL SLUDGE PRIOR TO THE FINAL DE-WATERING STEP IMPROVES BOTH THE PROCESS AND QUAITY OF THE OUTCOME) | BEVERAGES (PURIFICATION OF THE ENGRIDIENTS AND/OR THE FINISHED BEVERAGE BY FILTRATION IS ESSENTIAL TO FLAVOR CONSISTENCY AND QUALITY) |
| OTHER USAGES | ||
|---|---|---|
| PAINTS AND INDUSTRIAL COATINGS |
RUBBER COMPOUNDS | PUMICE AS A CHEMICAL CARRIER |
| COSMETIC SCRUBS | HAND CLEANSERS | RUBBING COMPOUNDS |
| SCOURING PASTES AND POWDERS |
PENCIL ERASERS | CALLUS REMOVAL STONES |
| STAIN REMOVAL STONES | MOLD RELEASE AGENT | TEXTILE SOFTENING |