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Learn MoreFrequently Asked Question
You May Ask
Slab thickness (cm)
Concrete strength f'c (MPa)
Load class (light, medium, heavy, extreme)
Steel mesh replacement type
It also provides performance indicators like:
Equivalent steel mesh
Performance class
Estimated crack control
Total fiber required (kg)
Bags needed
Pallets needed
Estimated cost ($)
Enter the slab thickness in centimeters.
Select the concrete strength from the dropdown.
Select the load class.
Select the steel mesh replacement.
Click “Calculate Fiber Dosage”.
The results will populate on the right-hand side, including total fiber, bags, pallets, and cost.
Total Fiber (kg) = Fiber Dosage (kg/m³) × Slab Volume (m³)
Bags Needed = Total Fiber ÷ 20 kg per bag (rounded up)
Pallets Needed = Total Fiber ÷ 1000 kg per pallet (rounded up)
Estimated Cost ($) = Total Fiber × Price per kg
(You can adjust “20 kg per bag” or “1000 kg per pallet” depending on your packaging.)
No. All changes are only inside the calculator card. Menu bar, footer, page styles, and layout remain exactly the same.
Yes. If any input is missing, the script will alert the user to complete all fields before calculating.
Yes. You can update:
Price per kg for fiber
Bag size (kg)
Pallet size (kg)
in your JavaScript file (calculator.js) without touching the HTML layout.
Microfibers are very small synthetic fibers (usually 12–19 mm long) that reduce plastic shrinkage cracking in fresh concrete.
Macrofibers are larger fibers (usually 30–60 mm long) that provide structural reinforcement, reduce shrinkage and cracking, and can partially replace steel mesh.
icrofibers are mainly used in slabs, screeds, or thin concrete elements to control early-age cracking.
Macrofibers are used in industrial floors, pavements, or structural slabs to improve toughness, impact resistance, and reduce steel reinforcement needs.
No, microfibers alone cannot replace steel mesh or rebar; they only control shrinkage and improve durability. Macrofibers, however, can partially replace steel mesh in certain slabs, depending on load requirements.
Fibers are added directly to the concrete mix during batching or mixing.
Microfibers are used in small dosages (0.1–0.3 kg/m³), while macrofibers are used in higher dosages (1–6 kg/m³) depending on the slab design and performance requirements.