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Calcimator

Fiber Reinforcement Calculator

Calculate fiber reinforcement quantities and costs for concrete including synthetic micro, steel, and macro fibers. Compare to welded wire fabric.

Inputs

Results

Total Fiber (lbs)

15

Bags Needed

15

Total Fiber (kg)6.8
Estimated Cost$52.50
Cost per yd³$5.25
Dosage Adequate (1=Yes)1
Volume Fraction (%)0.0975
Savings vs WWF$69.50
How to Use This Calculator
  1. Enter the total concrete volume in cubic yards for the placement.
  2. Select the fiber type: 1 for synthetic micro (crack control, ~1.5 lbs/yd³), 2 for steel (structural, ~50 lbs/yd³), or 3 for macro synthetic (both).
  3. Enter the dosage in lbs/yd³ per manufacturer recommendations or your engineer's specification.
  4. Check Total Fiber (lbs) and Bags Needed to prepare your material order.
  5. Compare Estimated Cost to the Savings vs WWF output to see whether fiber is more economical than welded wire fabric.
  6. Confirm Dosage Adequate (1=Yes) to ensure the specified rate meets minimum recommendations for your fiber type.

How the result changes with Concrete Volume (yd³)

Concrete Volume (yd³)Total Fiber (lbs)Bags Needed
1,0001,5001,500
3,5005,2505,250
6,5009,7509,750
9,00013,50013,500

What each input means

Concrete Volume (yd³)
Total cubic yards of concrete to reinforce
Fiber Type (1=Synthetic, 2=Steel, 3=Macro)
Micro synthetic (crack control), steel (structural), macro synthetic (both)
Dosage (lbs/yd³)
Fiber dosage per cubic yard (micro: 1-2 lbs, steel: 30-60 lbs, macro: 3-8 lbs)

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Concrete Volume (yd³) = 10, Fiber Type (1=Synthetic, 2=Steel, 3=Macro) = 1, Dosage (lbs/yd³) = 1.5 = 3 input(s) provided
  2. Calculate Total Fiber
    Total Fiber
    15 = 15
  3. Calculate Bags Needed
    Bags Needed
    15 = 15
  4. Calculate Total Fiber
    Total Fiber
    6.8 = 6.8
  5. Calculate Estimated Cost
    Estimated Cost
    52.5 = $52.5

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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