Products
Contact Us
Office- No.218 Huiyuan Rd. - Shanghai - China || Factory-No.286 Xingang Rd. - Suzhou -China
Call Us:
+86-21-59969080

macro poly fibre for concrete

SHWITCOM 48PPB is a Macro Structural Synthetic Fibre that gives optimum performance in highly corrosive environments. Is ideally suited in pre-cast, slabs on ground among many other applications. Higher Re3 values are achieved in slabs on grade when using
INQUIRY
Buy At Alibaba
Description ASTM-C1550 test Mixing Procedure
SHWITCOM 48PPB is a Macro Structural Synthetic Fibre that gives optimum performance in highly corrosive environments. Is ideally suited in pre-cast, slabs on ground among many other applications. Higher Re3 values are achieved in slabs on grade when using this fibre.
Suggested Mixing Procedure for SHWITCOM PPB
When adding this fibre into a concrete mix, careful attention must be taken with the batching and mixing procedure.
The suggested procedures below are based upon our own testing. However we would advise that individual plant trials are carried out prior to supplying a contract.
For Wet Batch Plants
The fibre should be added to the concrete plant mixer with the other concrete ingredients. On previous contracts this has done by adding the PPB48 fibre contained in a bag directly into the plant mixer or onto the aggregate conveyor belt which then takes the fibres into the concrete mixer.
If the PPB48 cannot be added to the plant mixer then the Dry Batch Plant mixing procedure below is suggested.
For Dry Batch Plants
We have found that loading the truck mixer with all ingredients excluding the fibres should initially take place aiming for a target slump 75 mm. The truck should then mix the ingredients until the concrete mix is in a consistent, uniform state; ideally min. mixing of 5 minutes. Then the PPB48 fibres should be added to the truck mixer at a rate of one bag every 20 seconds and additional water or admixture added to bring the workability up to the min suggested 125mm slump. 
The barrel should be mixed at full spe.ed for a min. of 5 minutes (min. 70 drum revolutions) prior to discharge.
Mixing Micro Fibres
If the concrete mix design specifically requires both PPB48 and one of our micro monofilament fibres then it is important that the two different fibre types are added to the concrete separately. 
The micro monofilament fibres should be added at the beginning of the batching procedure and the PPB48 added into the truck after all the concrete is added into the truck as per the instruction above. Again, we advise that individual plant trials are carried out prior to supplying a contract.
PPB48 Packaging
The PPB48 bags are made of pulpable paper and can be added to the concrete plant mixer or truck. The wrap around the fibres is made of a cold water soluble film and with the correct mixing will breakdown during the mixing process in the concrete.
Please note that we would suggest that the concrete mix should have a min. sand content
of 45%. 
18914254943