Shotcrete Rebound Percentage Calculator
Audit actually collected dry rebound versus moisture-corrected delivered shotcrete, not forward batch volume from assumed rebound fraction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Rebound fraction needs collected rebound and delivered shotcrete on the same dry-mass basis.
Rebound fraction needs collected rebound and delivered shotcrete on the same dry-mass basis.1
Pooling masses weights observations by delivered dry material.
When to use Shotcrete Rebound Percentage Calculator
Use this tool to calculate or review the supplied observations under the stated rules. Match completed survey or ledger observations by block, segment or stage and confirm their units and boundaries.
How to use Shotcrete Rebound Percentage Calculator and understand its results
- Match completed survey or ledger observations by block, segment or stage and confirm their units and boundaries.
- Enter observedDeliveredWetShotcreteKg, observedDeliveredDryFractions, observedCollectedReboundDryKg, using the field meanings and rules below, then run the tool.
- Read observedDryReboundFraction. Inspect nested result fields where present, and review unknown records separately from known matches.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedDeliveredWetShotcreteKg | Observed delivered wet shotcrete kg | list of number | Required |
| observedDeliveredDryFractions | Observed delivered dry fractions | list of number | Required |
| observedCollectedReboundDryKg | Observed collected rebound dry kg | list of number | Required |
Use aligned delivered wet kilograms≥0, dry fractions [0,1] and collected dry rebound≥0. Each rebound must be≤matched delivered wet×dryFraction; total delivered dry mass must be positive. Return total rebound/total dry delivery as a fraction, not percent.
reboundFraction=ΣreboundDry/Σ(deliveredWet×dryFraction) Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedDryReboundFraction | Observed dry rebound fraction; dimensionless fraction, not a percent | number |
{
"input": {
"observedDeliveredWetShotcreteKg": [
100,
200
],
"observedDeliveredDryFractions": [
0.5,
0.5
],
"observedCollectedReboundDryKg": [
5,
20
]
},
"output": {
"observedDryReboundFraction": 0.16666666666666666
}
}Limitations and assumptions
Units, ledger boundaries, survey interpretation and model applicability must be independently established. These summaries do not assign reserve/resource classifications or establish support adequacy, ventilation safety or an operating setting.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above.
Alternative or Complementary methods
For a related step, use Shotcrete Accelerator Dose Calculator: An accelerator ledger distinguishes the product added from its active component. For a complementary comparison, use Stope Tonnage Calculator: Wet extraction weights require matched dry fractions before comparing dry-material ledgers.
References
-
Shotcrete Rebound Percentage Calculator — tool.io
Similar or alternative tools
- Shotcrete Accelerator Dose Calculator
An accelerator ledger distinguishes the product added from its active component.
- Stope Tonnage Calculator
Wet extraction weights require matched dry fractions before comparing dry-material ledgers.