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Dosing and Handling

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Handling Barchip
Adding Barchip fibre at the slump stand.
Adding Barchip fibre at a dedicated loading stand.
 Adding Barchip fibre directly into load chute.

Adding Barchip “Bag and All” Before Loading Concrete
Batching Procedure
  1. Determine the correct number of Barchip bags per batch.
  2. Add Barchip bags to the empty agitator.
  3. Add initial batch water.
  4. Mix for one minute before adding dry materials.
  5. Add dry materials and mix for five minutes.
   Barchip is specified at a dose rate in kilograms per cubic metre according to project requirements.

Prior to batching determine the correct number of Barchip bags per batch. Check dose rate per cubic metre, number of cubic metres in the batch and the correct number of bags for the kilograms required.

Barchip is packaged in a water soluble paper bag.

It is recommended that Barchip (bag and all) is added from an approved loading platform to the empty concrete agitator before water and dry materials.

The bags should then be mixed with initial batch water for at least one minute to dissolve the bag and release the fibres.

After completing the batching process, mix for five minutes until all ingredients are blended into a homogenous mixture.
     
  Technical Procedure
General Notes:
Slump
The concrete slump can be expected to decrease by 10 to 50mm depending on the amount of fibres dosed. Final slump should be checked and adjusted if necessary.

Packaging
Barchip Macro is packaged in a 3 kg bag. Barchip Shogun and Barchip Xtreme are packaged in 5 kg bags.

Automated Delivery System
Barchip is available in bulka bags containing a “puck” version suitable for use in automated delivery systems.

These systems can be integrated into the batch plant for computerised trouble free dispensing.		  

Non-Preferred Batching Method
In the case of adding Barchip fibres after batching the concrete, the following procedure must be followed:

  1. Ensure the slump is 80mm or greater.
  2. Ensure the agitator is revolving at an appropriate mixing speed.
  3. Add Barchip “bag and all” to the mix.
  4. Ensure each bag is allowed to mix for 30 seconds before the next bag is added.

Macro 3 kgs
Shogun 5 kgs
Xtreme 5 kgs

 

 
 
Did you know...?
Barchip fibre reinforced shotcrete can absorb up to 20 times more energy from rock displacement when compared to unreinforced shotcrete.
Test Reports


Watch Video

Batch plant integrated automatic dosing


Watch Video

Barchip being sprayed at 7kg/m3 (12lbs/yd3)
 
Benefits
Flexural toughness
equal to steel
Strain hardening during
ground deformation
No rusting ensuring
durable support
Safer & lighter to handlethan steel fibre
No damage to trailing electrical cables on mining equipment

Reduced wear on concrete pumps & hoses

Safety
Reduce back injury

Did you know one 5kg bag of Barchip gives equivalent energy absorption performance to 25kg of steel fibre.


No more needles
Steel fibers are often referred to as needles due to the high frequency of puncture injuries to skin when handling


Paper Bags
Barchip is also available in dissolvable paper bags making batching even simpler. Just throw them "bag and all" in the truck and then batch your load of concrete.


Barchip is supplied in 5kg (11 lb.) plastic or paper bags


 
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