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Naturalgel
Product #15605
Naturalgel has the unusual property of expanding several times its original volume when placed in water. The result is higher fluid viscosity, gel strength, and solids suspending ability.
Specifications
Bentonite can be added up to 20% by volume by weight of cement. Above 6%, the addition of a dispersant is usually necessary to reduce the slurry viscosity and gel strength.
As shown in the table below, the slurry density decreases and the yield increases quickly with bentonite concentrations. High bentonite concentrations tend to improve fluid loss control; however the compromise is higher cement permeability and lower compressive strength. Naturalgel can also be used as an extender at elevated temperatures.
Bentonite % |
Slurry Weight kg/m³ |
Mix Water m³/ton |
Slurry Yield m³/ton |
0 | 1893.3 | 0.440 | 0.757 |
2 | 1785.4 | 0.547 | 0.870 |
4 | 1713.5 | 0.653 | 0.984 |
6 | 1665.6 | 0.759 | 1.097 |
8 | 1593.7 | 0.867 | 1.218 |
10 | 1569.7 | 0.971 | 1.323 |
12 | 1521.8 | 1.078 | 1.440 |
16 | 1461.9 | 1.291 | 1.880 |
Mixing & Handling
The extending properties of bentonite can be greatly enhanced if the material is allowed to completely hydrate in the mix water prior to slurry mixing. The presence of high concentrations of calcium ion in the aqueous phase of cement slurry inhibits the hydration of Naturalgel.
Physical Properties
Appearance: Light tan-grey powder or granules
Specific Gravity: 2.45 - 2.55
Melting Point: 1450°C
Bulk Density: 49 - 55 lbs/ft³
Chemical Properties
Solubility: 100% soluble in water
pH: 8.0 - 10.0 (5% aq. solution)
Chemical | Percentage |
Silicone Oxide (SiO2) | 61% |
Aluminum Oxide (AlO3) | 18.1% |
Ferric Oxide (Fe2O3) | 3.5% |
Sodium Oxide (Na2O) | 2.3% |
Magnesium Oxide (MgO) | 1.7% |
Calcium Oxide (CaO) | 0.2% |
Titanium Oxide (TiO2) | 0.1% |
Potassium Oxide (K2O) | 0.07% |
Other | 7.8% |
Packaging & Controls
This product appears in:
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