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Products > Shot-Set 250 Liquid Accelerator
A modified silicate-based accelerator, Shot-Set 250 Liquid Accelerator provides better adhesion, increasing thickness on the first pass.
Shot-Set 250 is easier to work with than other accelerators because its' higher viscosity allows the injected accelerator to blend more completely with the shotcrete mix, creating a more predictable, homogeneous result at lower dosages (two to six percent). With its unique chemical composition, Shot-Set 250 doesn't generate heat to accelerate like other products. So, there's negligible strength loss.
Shot-Set 250 is non-toxic containing no chlorides, nitrates or aluminates, and increases safety underground. Plus, it's compatible with all cement types, and meets or exceeds all ASTM, ACI and other requirements for "in-situ" shotcrete testing. At a dosage rate of two to four percent by weight of the cement, petrographic, tests show no deterioration of "in-place" shotcrete after several years.
The Shot-Set 250 Liquid Accelerator:
- Reduces rebound, normally to about five percent.
- Increases safety because it's non-toxic and non-caustic
- Decreases probability of skin and eye burns
- Provides greater workability and final strength
- Greatly increases adhesion
- Saves you money
Basic Shot-Set 250 Specifications:
- Furnished in 55-gallon drums (208 liters)
- Net weight: 634 pounds (287 kilograms) per drum
- Available in bulk
- Shelf life of two years plus when properly stored
Please note: The suggested mix design and requirements below are for example only. Mix designs and requirements will vary according to application and desired results.
High Performance Shotcrete Requirements:
Property
Minimum Requirements
 Compressive Strength |
Mpa | p.s.i. |
| 1 Day |
10 | 1450 |
| 7 Days |
30 | 4350 |
| 28 Days |
40 | 5800 |
| Flexural Strength |
Mpa | p.s.i. |
| 7 Days |
4 | 580 |
| 28 Days |
6 | 870 |
High Performance Wet Shotcrete Mix Design:
MaterialProportions
| kg/m3* | lb./cu.yd. | |
| Cement Type | 400 kg/m3 | 675 lb./cu.yd. |
| Silica Fume (optional) | 40 kg/m3 | 67 lb./cu.yd |
| 10mm Coarse Aggregate 3/8 | 420 kg/m3 | 710 lb./cu.yd. |
| Concrete Sand Well Graded F.M.-2.7 | 1130 kg/m3 | 1900 lb./cu.yd. |
| Water Reducing Admixture | 1 liter | 25 fl. oz. |
| Superplasticizer | 4 liter | 100 fl. oz. |
| Air Entraining Mixture | *as required | |
| Steel Fiber (if required) | 60 kg/m3 | 100 lb./cu.yd. |
| Shot-Set 250 3% | 11 liter | .26 lbs. |
| Water | 190 kg/m3 | 320 lb./cu.yd. |
| Total | 2255 | 3800 |
Material Safety Data Sheets
Click here to view the SDS data sheet for Shot-Set 250.
Information on other Shotcrete Technologies products, detailed price lists, specifications and references are available upon request.
NOTE: Due to continuous development and improvement, we reserve the right to modify the design and specifications of our products without notice.
