Mapei · FibreNo. 24 / 47
Mapefibre NS 12
12 mm monofilament polypropylene microfibres for concrete.
12 mm monofilament polypropylene microfibres for concrete
- Mapefibre NS 12 are recommended to improve the resistance of concrete to cracks caused by plastic shrinkage as well as the fire resistance properties and the durability of concrete
- Production of concrete used for industrial floors, airport forecourts and multi-storey car-parks
- Production of precast reinforced concrete panels and pipes and concrete elements
- Production of fire-resistant concrete
- Consumption
- 600 g per m³ of concrete
- Pack we stock
- 0.6 kg
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Mapefibre NS 12 and the pack sizes we stock. Set your own wastage allowance.
You need
x 600 g bag
- Data sheet quantity
- 6 kg
- With 10% wastage
- 6.6 kg
The figures behind it.
- The normal dosage of Mapefibre NS 12 is 600 g/m³, usually added to the concrete.
Consumption on site depends on the substrate, the tool and the applicator, which is why wastage is yours to set. The result is a quantity to plan and quote with, not a guarantee of coverage. Confirm the system against the current Mapei technical data sheet before ordering.
Application
Where it is used.
In Mapei's own words, from the technical data sheet.
- 01Mapefibre NS 12 are recommended to improve the resistance of concrete to cracks caused by plastic shrinkage as well as the fire resistance properties and the durability of concrete
- 02Production of concrete used for industrial floors, airport forecourts and multi-storey car-parks
- 03Production of precast reinforced concrete panels and pipes and concrete elements
- 04Production of fire-resistant concrete
Where it is not the right product.
- The use of Mapefibre NS 12 does not offer any advantage from a structural point of view, and may not be considered as an alternative solution to metal reinforcement
- The use of this product is allowed only at industrial sites (derogation 4a) and if during the intended end-use synthetic polymer microparticles result as permanently incorporated into a solid matrix (5c)
Specification
Technical data.
- Length of fibres (mm)
- 12
- Diameter (µm)
- 32 ± 1.6
- Density (g/cm³)
- 0.91
- Flame point
- +400°C
- Melting point
- +160°C-170°C
- Water absorption
- none
- Resistance to alkalis, acids and salts
- high
- Tensile strength (N/mm²)
- 400-500
Typical values as Mapei prints them in data sheet edition 751-06-2026-EN. They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- 0.6 kg
- Mapei packaging
- Mapefibre NS 12 are supplied in boxes with 30 degradable/pulpable paper bags, 600 grams each.
- Storage
- Mapefibre NS 12 may be stored for 36 months in their sealed bags. Protect from direct sunlight and rain.
Related products
Concrete Repair, Grouts & Anchoring.
Mapefibre NS 12 in Tanzania
Tell us the area. We will quote the job.
Sahihi is an authorized Mapei distributor in Dar es Salaam. Send the quantity of Mapefibre NS 12 you need, or describe the job and we will work it out with you.