‘VASHUDHA’
62 B, BRAUNFELD ROW,
KOLKATA-700 027
MON - SAT: 10 am - 6 pm
SUNDAY: Closed
‘VASHUDHA’
62 B, BRAUNFELD ROW,
KOLKATA-700 027
MON - SAT: 10 am - 6 pm
SUNDAY: Closed
SHOTCRETE AIDS
Hind Bolt C
USES
- 1. For immediate repair of water storage tanks and dams
- 2. To install anchor bolts which are used for fixing of heavy machinery
- 3. For fixing of anchor bolts for Coal Mine strata stabilization
- 4. For fixing of anchor bolt for rock stabilization
ADVANTAGES
- 1. Provides high strength
- 2. It is fast setting.
- 3. It is highly resistant to sulphate attack
APPLICATION
Soak the perforated capsules in water for 1 to 2 minutes. Insert the required numbers of water soaked capsules into the holes accommodating the capsules. Insert and push the anchor bolt with help of electrically operated drill. Place and fix the cover plate. All operations should be completed within 8 to 10 minutes.
STANDARD SIZE
| 25mm dia x 300mm length |
| 28mm dia x 300mm length |
| 32mm dia x 300mm length |
| 40mm dia x 300mm length |
| Any other sizes to suit the site requirements can be made. |
PROPERTIES
Grey colored capsule.
SHELF LIFE
6 months in unopened condition. The material should be stored in dry place, under a shed and away from source of heat at temperature ranging between 20 C (Min.) and 500 C (Max.). The capsules are manufactured in standard length and diameter depending on customer’s demand. The diameter of the hole is about 10 to 12 mm more than the diameter of anchor.
PACKING
As per requirement
HANDLING PRECAUTION
Hind Bolt C is non-toxic and ingestion is to be avoided. If contact with eyes occur, wash immediately with water and seek medical advice.
Hind Bolt R (Fast Setting)
RESIN CAPSULE FOR ROCK STABILIZATION
DESCRIPTION
Hind Bolt R is a fast setting sausage shaped composite cartridge, containing special grade of isophthalic polyester resin and a floating inner tube, filled with catalyst in accurately measured quantities. The two components are housed in a single pouch and yet isolated from each other. When punctured and torqued by a reinforcing rod, the fragile tube breaks, the resin and catalyst thus get homogeneously mixed and the phenomenon of curing by cross linking sets in. The gel point under exothermic conditions is reached within 1 to 3 minutes, as per specific requirements and the annular space between the bore hole wall and rock bolt is filled with a tough thermo set resin matrix. This stitches the mother substrate or anchors the bolt and stabilizes the support system permanently, achieving a Pull-out load as high as 100MT per Running Meter and Pull out Bond Strength of 20 N/mm2.
USES
Hind Bolt R is used to counter the load and squeezing phenomenon occurring from the reducing residual stress of the rock, after blasting, in a mining or tunneling operation. It reinforces rock strata and prevents freshly exposed overhead rock from collapsing, after each blast.
ADVANTAGES
- Increases stand-up time of unsupported span in tunneling.
- Suitable for a wide range of rocks, even with low RMR.
- Ideal for fast tunneling work as per NATH.
- Pre-determinable setting times.
- High early and final strengths, achievable in minutes.
- Inert to mother substrates after reaction.
- Sets as a monolithic mass, even in vibrating and moist conditions.
- No danger of chemical attacks or fire, to environments.
- Resistant to salt water, oil, acid, alkali, greases and solvents.
- Ideal in underground coal mining operations, hydel projects, traffic tunnels.
APPLICATION
- Bore a hole by drilling to correct depth and diameter as recommended.
- Clean the hole thoroughly with compressed air and/or water.
- Insert appropriate number of capsules one by one to the end of the hole.
- Attach bolt to rotary machine by means of a spinning adapter and commence rotating/torque
progressively, through capsules until the end of the hole is reached. Detach drill from spinning adapter
(Recommended speed of the rotation 150-250 r.p.m)
- Leave bolt undisturbed until resin has cured.
- Remove adapter.
- After 24 hours tighten the rock bolts finally & the hole is grouted.
PROPERTIES
Color | Yellow/white |
Size | Cylindrical sausages, custom-made to suit the requirement. |
Compressive Strength | After 1 hour - 62 N/mm2 (minimum) After 24 hours - 65 N/mm2 (minimum) |
Tensile Strength | At 7 days - 30 N/mm² (minimum) |
Pull out load | 100 MT/running meter |
Pull out Bond Strength | 20 N/mm2 |
GUIDELINES
TABLE A
(Typical results based o 25mm Dia Rock Bolt used)
Ultra High Strength Granite Rocks unconfined Compressive Strength 100 N/mm2 | High strength Lime stone (calcarious) Rocks unconfined Compressive strength 50N/mm2 | Medium strength sand stone (Quartzite)Rocks unconfined Compressive strength 15 N/mm 2 | Moderately weak strength Mudstone Rocks unconfined compressive strength 7.5 N/mm 2 | ||||
Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) |
230 | 9 | 290 | 8 | 400 | 4.5 | 640 | 4.5 |
270 | 11.5 | 360 | 12 | 500 | 9.0 | 700 | 6.5 |
300 | 17.5 | 450 | 18 | 635 | 12.0 | 760 | 8.5 |
350 | 20.0 | 500 | 23 | 765 | 18.0 | 890 | 10.5 |
| 890 | 23.0 | 1000 | 13.5 | |||
The Chart given below demonstrates ‘HIND BOLT R’ Resin capsule usage chart (site trial data basis)
TABLE B
Hole diameter (in mm) | 25 | 32 | 35 | 38 | 41 | 38 | 41 | 45 | 50 | 64 |
Capsule diameter (in mm) | 23 | 29 | 32 | 32 | 32 | 35 | 35 | 40 | 40 | 55 |
Bolt diameter (in mm) | Anchorage Length using Single Capsule (in mm) of HIND BOLT R | |||||||||
19 | 380 | 330 |
|
|
|
|
|
|
|
|
22 |
| 400 | 350 |
|
| 315 |
|
|
|
|
25 |
| 565 | 440 | 315 |
| 390 | 290 | 300 | 320 | 340 |
29 |
|
|
| 400 | 290 | 490 | 350 | 340 |
|
|
30 |
|
|
|
| 390 |
| 465 | 425 |
|
|
32 |
|
|
|
|
|
|
| 525 | 550 | 560 |
35 |
|
|
|
|
|
|
| 570 |
|
|
Note: We can manufacture Hind Bolt R as per desired diameters & length.
SHELF LIFE
3 months from the date of manufacture.
Extended Shelf life can be achieved for 6 months if the following guidelines are followed:
a) If stored at room temperature below 270
b) If protected from direct sunlight.
c) If protected from other sources of heat.
d) Testing of Compressive Strength can be done from time to time (within the shelf life 3-6 months) to check the quality of the material, if any solidification of the inner materials are found.
PACKING
In Cardboard/Wooden Box.
HANDLING PRECAUTION
Hind Bolt R Cartridges are made of plastic film packing containing an inner glass tube. Care should be taken while handling or installation that it does not get pierced by sharp objects and the inner glass tube does not break.
Hindcem MF
ULTRAFINE CEMENTITIOUS INJECTABLE GROUT FOR ROCK & SOIL STABILIZATION
DESCRIPTION
Hind Cem (MF) is a unique formulated non-ferrous fluidizer, non gaseous, expansive type grout consisting of dry premixed blend of ultrafine special cement. In conjunction with a specially formulated admixture system it is used for injection grouting work for rock and soil stabilization. Due to the presence of finer particle size and a good plasticizing medium it penetrates deep into micro-cracks, fissures and seals all pores enabling to provide a impervious and water-tight stabilized rock or soil mass.
USES
- For injection grouting in Basements, Tunnels, Lift wells, Water Reservoirs, Pressure ducts, mines and Pre-stressed cable ducts.
- Rock and Soil stabilization and effective ground water sealing.
- Sealing of voids in rock by injection operation.
- To provide a watertight, impermeable rock and soil mass.
- Grouting of anchor bolts of machine foundation and columns.
ADVANTAGES
- Improved fluidity thus sealing micro-cracks, fissures and pores.
- Easy to use with Standard cement injection grouting pumps.
- Fast setting helps in speedy operation of construction activities.
- Very economical and durable.
- Non-toxic and safe to handle and non-hazardous.
APPLICATION
Always use Hind Cem (MF) with Hind Plast Super-Water Reducing Admixture and the dosage varying from 0.1%-1% by weight of Hind Cem (MF). Recommended Powder: Water Ratio (by weight) should normally be between 0.5 - 1.0
Mixing
Hind Cem (MF) is to be gradually added to water and mixed thoroughly. All quantity of the grout should not be added at one time. Mixing procedure may be carried with a slow paddle mixer (400-450 rpm) or by means of any suitable mechanical mixer. Injection grouting work is now to be done by high pressure pump and the injection operation to be completed with a time period of 30- 45 minutes for better and effective results. Due to its fast setting properties it get set within 2-31/2 hours and allow drilling operation to continue further.
PROPERTIES
Aspect | Grey Powder | |
Fineness (Blaine) | > 650 m2 /Kg | |
Setting Time at 270 C * (ASTM C – 1102-94) | Initial | 90 minutes with 1 : 0.7 (Powder : Water Ratio) 115 minutes with 1 : 1 ( Powder : Water Ratio) |
Final | 160 minutes with 1 : 0.7( Powder : Water Ratio) 200 minutes with 1: 1 (Powder : Water Ratio) | |
Compressive Strength | 7 days | > 10 Mpa |
28 days | > 25 Mpa | |
Chloride Content | Nil – as per B.S –5075 (Part-1) | |
Compressive Strength is dependent on the Powder: Water Ratio used. Above result for Compressive Strength is based on 1 : 0.5 (Powder : Water Ratio)
Particle size distribution:
<40 micron | 100 % |
<30 micron | 98 % |
<20 micron | 97 % |
<15 micron | 94 % |
<10 micron | 77 % |
< 5 micron | 44 % |
< 2 micron | 16% |
SHELF LIFE
Best before 6 months from the date of manufacture. Should be stored in a cool and dry place away from direct sunlight at temperature ranging between 20 C (Min.) and 45 0 C (Max.).
PACKING
25/50 Kg. in HDPE bag
HANDLING PRECAUTION
Hind Cem (MF) is non-toxic and ingestion is to be avoided. If contact with eyes occurs, wash well immediately with water and seek medical advice.
Hind Set LAF
ALKALI FREE GUNITE AND SHOTCRETE ACCELERATOR IN LIQUID FORM
DESCRIPTION
Hind Set LAF is a alkali-free set accelerator available in Liquid form for use in wet shotcreting /Guniting. The dosage of the liquid admixture varies as per the desired setting and hardening time. It is not freezable below Zero Degrees Celsius and is regularly being used effectively in sub zero temperatures in India & Abroad.
USES
Hind Set LAF is used and suitable for all applications to give high early strength, good final strength and achieving higher thickness in layers of sprayed concrete.
- Wet shotcrete.
- Grouting (back filling)
- Tunnels, Galleries, Mining
- Slope stabilization, Pit protection.
- Embankment and excavations
- Concrete repair work
- Shoring operation
- Swimming Pool
- It can also be used for quick setting of cementitious grouts used in TBM tunnel lining and backfill concreting.
ADVANTAGES
Hind Set LAF is advantageous and ideal for wet shotcreting for rock stabilization..
- Completely free from alkali.
- Allows spraying to take place even on wet substrate subject to slight infiltration
- Speed up the work and contribute to excellent water tightness of the sprayed concrete linings
- Improves overhead spraying and reduces rebound.
- Completely free from chloride, nitrate and alkali aluminate, alkali silicate, alkali carbonate based formulations.
- Eliminates alkali silica reaction even with reactive siliceous aggregate.
- The quick setting property allows wet sprayed concrete to be done in thick layers hence rapid work progress is achieved.
- It is not freezable below Zero Degrees Celsius.
APPLICATION
Hind Set-LAF to be added by means of a suitable dispensing pump.
PROPERTIES
| Aspect | Liquid aqueous dispersion |
| Specific Gravity | 1.43 + 0.05 at 270 C |
| Solubility | Freely mixable with water |
| pH | 3 + 1 |
| Chloride Content | <0.1% |
| Alkali Content | < 1% |
| Hind Set LAF is Sulphate Resistant | |
| Hind Set LAF is not based on Ligno Sulphonate | |
MATERIAL SPECIFICATION
The alkali -free shotcrete accelerator, Hind Set LAF is a non-caustic, high solid content admixture. Due to its specific gravity greater than 1.4, the rebound loss for wet shotcrete is minimized and by use of the same more than 150mm thick layer of wet shotcrete is achieved in a single operation. High early strength (>12 Mpa at 24 hours) and quick final setting (< 15 minutes) is achieved when used in wet shotcrete. It is always advisable that the substrate is clean and free from loose particles and the cement used is fresh or otherwise, if the cement is old the setting properties of the mix is affected. The use of Hind Set LAF is very sensitive with different types of cements. Generally Portland cements is used to give good and fast setting. It can also be used with blended & Fly-ash /Slag cements. It is always recommended to check the setting time and 24 hours strength of the cement to be used in the project and the evaluation of the same to be done as per EFNARC European Specification for Sprayed Concrete, Appendix 1, Clause 6.3. The test results mentioned as follows is for guidelines only. (Setting time conforming as per ASTM C 1102-94 standard)
| Initial Set | Final Set | 24 hours strength | Remarks | |
| 2-2.5 mins | 5-8 mins | 17-20 Mpa | Good | |
| 5-6 mins | 8-13 mins | 12-16 Mpa | OK | |
| >10 mins | >15 mins | Poor | ||
MIXING GUIDELINES
Hind Set LAF when used for Wet Shotcreting, the Water : Cement ratio should be less than 0.45 and for achieving high early strength , faster setting and better durability W/C ratio recommended is 0.40.
DOSAGE
The dosage of Hind Set LAF to be finalized by site trials, however the recommended dosage ranges from 4-10% by weight of binder materials used. Overdosing to a tune of more than 10% results to decrease in final strengths
SHELF LIFE
6 months from the date of manufacture. The material should be stored under shed and away from source of heat at temperature ranging between 20 C (Min.) and 500 C (Max.).
PACKING
300Kg. in HDPE container or as required
HANDLING PRECAUTION
Hind Set LAF is non-toxic, if contact with the skin happens it must be washed with water. If contact with eyes occurs, wash well immediately with water and seek medical advice.
Hind Set LAF 100
ALKALI FREE ACCELERATOR FOR SHOTCRETE & SPRAY CONCRETE IN LIQUID FORM
DESCRIPTION
Hind Set LAF 100 is a alkali-free set accelerator with high performance in liquid form for sprayed concrete applications. Hind Set LAF 100 has been formulated specially to be used for sprayed concrete mix which is designed based on fly ash based CEM II cement. It can also be used with standard CEM I types cement. The dosage of Hind Set LAF 100 can be adjusted to get the desired setting time and reduce rebound loss and at the same time a healthy and safe working environment is achieved. Hind Set LAF 100 is formulated to meet the requirements of EN 934-5 – Admixtures for Sprayed Concrete, ASTM C 1141/C 1141M – Standard Specifications for Admixtures for Shotcrete and EFNARC – European Specification for Sprayed Concrete.
USES
Hind Set LAF 100 is used and suitable for all applications to give high early strength, good final strength and achieving higher thickness in layers of sprayed concrete.
- Wet shotcrete.
- Grouting (back filling)
- Tunnels, Galleries, Mining
- Slope stabilization, Pit protection.
- Embankment and excavations
- Concrete repair work
- Shoring operation
- It can also be used for quick setting of cementitious grouts used in TBM tunnel lining and backfill concreting.
ADVANTAGES
Hind Set LAF 100 is advantageous and ideal for sprayed concrete wet mix.
- Completely free from alkalis
- Allows spraying to take place even at low temperatures and on wet substrate subject to slight infiltration.
- Speed up the work and contribute to excellent water tightness of the sprayed concrete linings.
- Improves overhead spraying and reduces rebound.
- Completely free from chloride, nitrate and alkali aluminate, alkali silicate, alkali carbonate based formulations.
- Eliminates alkali silica reaction even with reactive siliceous aggregate.
- The quick setting property allows wet sprayed concrete to be done in thick layers hence rapid work progress is achieved and extremely high early strength is achieved.
- Early compressive strength is attained during the first hour of operation after setting.
- High Final strength is achieved after 28 days with long term durability
- Low dust is produced during spraying which ensures a safe work environment.
APPLICATION
Hind Set-LAF 100 is to be added at the nozzle of a suitable dispensing/sprayed equipment. The dosage varies from 3% to 10% by weight of cement of the wet mix.
To obtain optimum performance the w/c ratio of the concrete mix to be maintained below 0.45 which also ensure fast setting at low dosages. A dosage of 6 % by weight of cement is suggested for 100 mm thickness of the spraying layer in single operation.
PROPERTIES
| Aspect | Liquid Aqueous dispersion (Visual) |
| Colour | White/Beige (Visual) |
| Density (Kg/m3) | 1425 + 25 (ISO 758) at 200 C |
| Solid Content (% by mass) | 50.0 + 5.0 (EN 480-8) |
| pH | 3.0 + 0.5 (ISO 4316) |
| Chloride Content (% by mass) | < 0.10 (EN 480-10) |
| Alkali Content (% by mass) | < 1.0 (EN 480-12) |
All technical data stated above is based on tests carried out in laboratory conditions.
SHELF LIFE
6 months from the date of manufacture in unopened container. The material should be stored under shed and away from direct sunlight at room temperature ranging between 50 C (Min.) and 400 C (Max.)
PACKING
In 300 Kg HDPE Container or as required.
HANDLING PRECAUTION
Hind Set LAF 100 is to be used as per guidelines. Safety Datasheet to be followed for application of the product. Recommendation to use protective equipment should be strictly followed for personal safety and protection.
Hind Set PAF
USES
Hind Set PAF is suitable for Dry Spray/Gunite mixes for Tunnels and Galleries, securing rock faces, embankments and excavations, this section concrete shells, swimming pool, concrete repair works, strengthening concrete structures.
ADVANTAGES
- 1. Completely free from alkalis
- 2. Allows spraying to take place even on wet substrate subject to slight infiltration
- 3. Reacts in the mix to assist the hydration process resulting accelerated strength development within first 24 Hours
- 4. Simplifies and improved overhead and lateral surface spraying.
- 5. Reduced rebound loss.
- 6. ompletely free from chloride, nitrate and alkali aluminate/ carbonate and alkali silicate based formulations.
- 7. Eliminates alkali silica reaction, which causes expansion and spalling of concrete structure made with alkaline accelerating admixtures
APPLICATION
The required amount of Hind Set PAF is mixed with dry cement-and-gravel mixture. Large quantity of dry-mix can be prepared provided dry aggregate is used and protected from moisture. When Guniting is interrupted care must be taken to ensure that water does not flow back in the supply hose causing the mix to set.
Dosage: Normally between 3 to 4% by weight of cement. When increased to 5 to 7% setting is quicker and curing time is much reduced.
The optimum dosage should be determined by Site/ Lab trials.
A typical example:
| Dosage of Hind Set PAF | Initial Set time | Final Set time |
| 3% – 4% | < 4 minutes | < 25 minutes |
| 5% – 7% | < 3 minutes | < 12 minutes |
The above results are based on Cement-OPC. 43 grade, temperature 27ºC, by use of Gillmore Needle. Setting time may vary due to variation in temperature. Setting time tested as per ASTM C – 1102-68 Method of Test.
PROPERTIES
| Aspect | White Powder |
| Solubility | Freely mixable with water |
| Bulk Density | 850 Kg/cubic metre |
SHELF LIFE
12 months from the date of manufacture in unopened condition. The material should be stored under shed and away from source of moisture and dampness at temperature ranging between 20 C (Min.) and 500 C (Max.).
PACKING
25 Kg. Poly lined HDPE bag & or as required.
HANDLING PRECAUTION
Hind Set PAF is non-toxic but ingestion is to be avoided. If contact with eyes occurs, wash well immediately with water and seek medical advice.
Hind Shot Set L
USES
Hind Shot Set L is used for the production of the high quality fast setting shotcrete (wet) and highly economical
- 1. To secure loose and fragmented rock foundation during tunnel construction.
- 2. To stabilize soil and rock faces.
- 3. To secure subterranean excavations
ADVANTAGES
Hind Shot Set L increases internal cohesion and adhesion of shotcrete.
Significantly reduces the rebound of the mix.
Results in dust free surfaces.
Produces high strength and dense concrete.
APPLICATION
Hind Shot Set L has to be added by means of a dispensing pump suitable for wet spray method. The dosage varies from 4 to 10 % by weight of cement. Setting time may vary if different cement brands & different grades are used.
PROPERTIES
| Aspect | Light yellowish/slight greyish/white liquid. |
| Specific gravity | 1.39 ± 0.02 at 27 °C |
| pH | >10 |
| Dry Material Content | 40 2 |
| Chloride Content | 0.2% Max. |
| Setting time (Testing using Gillmore apparatus) | Initial setting time within 3 Min.Final setting time within 12 Min. |
SHELF LIFE
12 months from the date of manufacture. Should be stored in a cool and dry place away from direct sunlight at temperature ranging between 20 C (Min.) and 500 C (Max.)
PACKING
140, 275 kg. in HDPE container or as required.
HANDLING PRECAUTION
Hind Shot Set L is non-toxic but ingestion is to avoided. Any splashes to the skin must be washed with water. If contact with eyes occurs, wash well immediately with water and seek medical advice.
Hind Shot Set P
USES
- 1. Hind Shot Set P is used for the production of the high quality fast – setting shotcrete and is highly economical.
- 2. To secure loose and fragmented rock foundation during tunnel construction.
- 3. To stabilize soil and rock faces.
- 4. To secure subterranean excavations.
ADVANTAGES
- 1. Hind Shot Set P increases internal cohesion and adhesion of shotcrete.
- 2. Significantly reduces the rebound of the gunmix.
- 3. Results in dust free surfaces.
- 4. Produces high strength and dense concrete.
APPLICATION
Hind Shot Set P normally used @ 2% to 4 % by weight of cement. When increased to 5% to 6 % setting is quicker and curing time is much reduced.
PROPERTIES
| Aspect | White powder |
| Setting time (Testing using Gillmore apparatus) | Initial setting time within 3 Min.Final setting time within 12 Min. |
SHELF LIFE
6 months from the date of manufacture. Should be stored in a dry and covered place at temperature ranging between 20 C (Min.) and 500 C (Max.).
PACKING
25 kg. in HDPE bag or as required.
HANDLING PRECAUTION
Hind Shot Set-P is non-toxic and ingestion is to be avoided. If contact with eyes occur, wash well immediately with water and seek medical advice
Hind Bolt R (Slow Setting)
RESIN CAPSULE FOR ROCK STABILIZATION
DESCRIPTION
Hind Bolt R (Slow Set) is a slow setting sausage shaped composite cartridge, containing special grade of isophthalic polyester resin and a floating inner tube, filled with catalyst in accurately measured quantities. The two components are housed in a single pouch and yet isolated from each other. When punctured and torqued by a reinforcing rod, the fragile tube breaks, the resin and catalyst thus get homogeneously mixed and the phenomenon of curing by cross linking sets in. The gel point under exothermic conditions is reached within 1 to 3 minutes, as per specific requirements and the annular space between the bore hole wall and rock bolt is filled with a tough thermo set resin matrix. This stitches the mother substrate or anchors the bolt and stabilizes the support system permanently, achieving a Pull-out load as high as 100MT per Running Meter and Pull out Bond Strength of 20 N/mm2.
USES
Hind Bolt R (Slow Set) is used to counter the load and squeezing phenomenon occurring from the reducing residual stress of the rock, after blasting, in a mining or tunneling operation. It reinforces rock strata and prevents freshly exposed overhead rock from collapsing, after each blast.
ADVANTAGES
- Increases stand-up time of unsupported span in tunneling.
- Suitable for a wide range of rocks, even with low RMR.
- Ideal for tunneling work as per NATH.
- Pre-determinable setting times.
- High early and final strengths, achievable in minutes.
- Inert to mother substrates after reaction.
- Sets as a monolithic mass, even in vibrating and moist conditions.
- No danger of chemical attacks or fire, to environments.
- Resistant to salt water, oil, acid, alkali, greases and solvents.
- Ideal in underground coal mining operations, hydel projects, traffic tunnels.
APPLICATION
- Bore a hole by drilling to correct depth and diameter as recommended.
- Clean the hole thoroughly with compressed air and/or water.
- Insert appropriate number of capsules one by one to the end of the hole.
- Attach bolt to rotary machine by means of a spinning adapter and commence rotating/torque progressively, through capsules until the end of the hole is reached. Detach drill from spinning adapter (Recommended speed of the rotation 150-250 r.p.m)
- Leave bolt undisturbed until resin has cured.
- Remove adapter.
- After 24 hours tighten the rock bolts finally & the hole is grouted.
PROPERTIES
Color | Yellow/white |
Size | Cylindrical sausages, custom-made to suit the requirement. |
Compressive Strength | After 1 hour - 62 N/mm2 (minimum) After 24 hours - 65 N/mm2 (minimum) |
Tensile Strength | At 7 days - 30 N/mm² (minimum) |
Pull out load | 100 MT/running meter |
Pull out Bond Strength | 20 N/mm2 |
GUIDELINES
TABLE A
(Typical results based o 25mm Dia Rock Bolt used)
Ultra High Strength Granite Rocks unconfined Compressive Strength 100 N/mm2 | High strength Lime stone (calcarious) Rocks unconfined Compressive strength 50N/mm2 | Medium strength sand stone (Quartzite)Rocks unconfined Compressive strength 15 N/mm 2 | Moderately weak strength Mudstone Rocks unconfined compressive strength 7.5 N/mm 2 | ||||
Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) | Anchorage Length (mm) | Average Load (MT) |
230 | 9 | 290 | 8 | 400 | 4.5 | 640 | 4.5 |
270 | 11.5 | 360 | 12 | 500 | 9.0 | 700 | 6.5 |
300 | 17.5 | 450 | 18 | 635 | 12.0 | 760 | 8.5 |
350 | 20.0 | 500 | 23 | 765 | 18.0 | 890 | 10.5 |
| 890 | 23.0 | 1000 | 13.5 | |||
The Chart given below demonstrates ‘HIND BOLT R (Slow Set)’ Resin capsule usage chart (site trial data basis)
TABLE B
Hole diameter (in mm) | 25 | 32 | 35 | 38 | 41 | 38 | 41 | 45 | 50 | 64 |
Capsule diameter (in mm) | 23 | 29 | 32 | 32 | 32 | 35 | 35 | 40 | 40 | 55 |
Bolt diameter (in mm) | Anchorage Length using Single Capsule (in mm) of HIND BOLT R (Slow Set) | |||||||||
19 | 380 | 330 |
|
|
|
|
|
|
|
|
22 |
| 400 | 350 |
|
| 315 |
|
|
|
|
25 |
| 565 | 440 | 315 |
| 390 | 290 | 300 | 320 | 340 |
29 |
|
|
| 400 | 290 | 490 | 350 | 340 |
|
|
30 |
|
|
|
| 390 |
| 465 | 425 |
|
|
32 |
|
|
|
|
|
|
| 525 | 550 | 560 |
35 |
|
|
|
|
|
|
| 570 |
|
|
Note: We can manufacture Hind Bolt R (Slow Set) as per desired diameters & length.
SHELF LIFE
3 months from the date of manufacture.
Extended Shelf life can be achieved for 6 months if the following guidelines are followed:
a) If stored at room temperature below 270
b) If protected from direct sunlight.
c) If protected from other sources of heat.
d) Testing of Compressive Strength can be done from time to time (within the shelf life 3-6 months) to check the quality of the material, if any solidification of the inner materials are found.
PACKING
In Cardboard/Wooden Box.
HANDLING PRECAUTION
Hind Bolt R (Slow Set) Cartridges are made of plastic film packing containing an inner glass tube. Care should be taken while handling or installation that it does not get pierced by sharp objects and the inner glass tube does not break.
Even though HINDCON CHEMICALS LTD. (Formerly known as Hind Silicates Pvt Ltd.) was formed in 2000, its chemical production roots date back to as early as 1947
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Get in Touch
- ‘VASHUDHA’
- 62 B, BRAUNFELD ROW,
- KOLKATA-700 027
- 033 2449 0839
- contactus@hindcon.com