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At the time of boring for Pile, the sides of the bore hole are subjected to numerous external forces and pressure like active earth pressure, hydrostatic pressure, pore pressure, etc due to underground water. As a result the side of the bore become unstable and may collapse if the soil layers remain weak.
Due to its thixotropic property. bentonite is used as a supporting fluid to counter the external pressures and stabilize the sides of the bore hole.
Darshna Minerals Piling Grade Bentonite is a sodium based bentonite of exceptional purity procured from ores with a high composition of montmorollinite.
The main features of Darshna Minerals Piling Grade Bentonite are listed below :
Specifications
Properties | Unit | Pilling Normal Bond | Pilling Insta Bond | Pilling SuperBond | Pilling High Bond |
---|---|---|---|---|---|
Liquid Limit | ml | 350-400 | 400-450 | 450-500 | 500-600 |
Free Swelling volume 2 gm/ 100 ml | mg.gm of clay | 22-25 | 25-28 | 28-30 | 30-35 |
Perticlesizefiner than 75 Micron Dry Passing | % | 85 Min. | 85 Min. | 85 Min. | 85 Min. |
Marsh Funnel Viscosity | Min. | 30-35 | 35-37 | 40-45 | 50-55 |
pH Value 2% Slurry | pH | 9-10 | 9-10 | 9.5-10 | 9.5-10 |
Passing 200 Mesh | % | 83-85 Min. | 83-85 Min. | 83-85 Min. | 83-85 Min. |
Gel Time 2.5 gm-2.5 ml | Second | 1 Min. | Instant | Instant | Instant |
Moisture Content & by Weight | % | 12 Max. | 12 Max. | 12 Max. |
12 Max. |
The Importance of Darshna Minerals Poultry & Cattle Feed Grade Bentonite Powder
Specifications
Properties | Unit | IOP Insta Bond | IOP Super Bond | IOP High Bond |
---|---|---|---|---|
Free Swelling Volume 2 gm/ 100 ml | ml | 28-30 | 30-32 | 32-35 |
Methylene Blue Absorption Value | mg.gm of clay | 350-375 | 375-400 | 400-450 |
P.W.A. | - | 550-650 | 600-700 | 650-750 |
Moisture by Weight | % | 12 | 12 | 12 |
Passing 200 Mesh if Powder | % | 85 Min. | 85 Min. | 85 Min. |
All Cast Iron, Steel & Malleable iron founders are almost using Bentonite with cost efficient results, kutch region is famous for a very good sodium Bentonite for casting industries continuos mould making kutch Bentonite is used successfully. Bentonite is used as a bonding materials in the preparation of moulding sand for the production of cast iron, steel and non ferrons casting. The unique properties of bentonite yield green sand moulds with good flowability, compactability and thermal stability for the production of high quality castings.
Darshna Minerals Foundary Grade Bentonite is a sodium based bentonite of high purity mined and processed especiality for foundry from ores with a high compositions of montmorollinite.
The man features of Drashna Minerals Foundry Grade Bentonite are listed below :
Specifications
Properties | Unit | Foundry Normal Bond | Foundry Insta Bond | Foundry Super Bond | Foundry High Bond |
---|---|---|---|---|---|
Free Swelling Volume 2 gm / 100 ml | ml | 20-22 | 24-25 | 28-30 | 32-35 |
Methylene Blue Absorption Value | mg/gm of clay | 325-350 | 375-400 | 375-425 | 400-450 |
Get Time 2.5 gm-25 ml | Second | 1 min. | Instant | Instant | Instant |
Wet Tensile Strength (N/cm2) | ml | 0.20-0.22 | 0.23-0.25 | 0.25-0.30 | 0.30-0.40 |
Getting Index | ml | 80-60 | 80-90 | 85-90 | 85-90 |
Moisture Content by weight | % | 12 | 12 | 12 | 12 |
pH Value 2% Slurry | pH | 9.0-10.0 | 9.0-10.0 | 9.0-10.0 | 9.0-10.0 |
Passing 200 Mesh | % | 85 Min. | 85 Min. | 85 Min. | 85 Min. |