Question 1

What type of Industries use RDC?

Accepted Answer

RDC is used where there is airborne dust causing issues within the workplace or for road users.
 
•Council Roads-dusty gravel roads
•Highway Construction Haul Roads
•Forestry Roads
•Mine Roads
•Commercial Yard
•Agricultural applications
•Private ratepayers

Question 2

What is the Recommended Dose Rate

Accepted Answer

Initial recommended application rate of 2ltrs per sqm for the initial treatment with a top up of 1ltr per sqm if required (rising dust or extreme weather).

Question 3

How do I apply RDC and what equipment do I require?

Accepted Answer

If the pavement is bone dry, then you will need to pre-wet it with water.  Use a water cart or a spray unit capable of delivering a uniform spray to the surface of the pavement.  Complete a test area spraying to calibrate the flow and speed of vehicle to get the specified amount of product onto the pavement.  Pre-shaping the road and using a roller on site to follow behind the water cart will give your treatment longevity and a smooth finish but is not generally required.

Question 4

Can RDC be used as a water saver?

Accepted Answer

Yes.  
RDC can be diluted at 10:1(10%) to lower the frequency of watering for dust control, saving precious resources.

Question 5

What type of soil can I use RDC on?

Accepted Answer

RDC can be used on most soil types that have a well graded grain size distribution with fines. RDC is not compatible with plastic materials such as Clay.

Question 6

What affects the performance of RDC?

Accepted Answer

Heavy rain prior and after application.
No heavy rain should be forecast within 24 hours pre or post application to give the product time to cure into the pavement.

Question 7

Is RDC corrosive?

Accepted Answer

Gravel Lock’s proprietary additives have been proven to reduce corrosiveness to less than that of water.

Question 8

How should I clean my equipment?

Accepted Answer

You should definately clean your spray equipment and pumps at the end of the application process.
RDC is not difficult to remove just rinse with lots of water.

Question 9

How is RDC Supplied?

Accepted Answer

RDC is supplied in 1000ltr IBC’s or 20000ltrs bulk tanker delivery.  Minimum order is a 1000ltrs in an IBC.

Question 10

Where can I buy RDC from?

Accepted Answer

Gravel Lock can supply NZ Wide all purchases are ex works.

You can also contact one of our Distributors:

Instant Green - Napier 0211930931
RST - Palmerston North 0272750669
Appchem - New Plymouth 021839708
Envirosouth - Invercargill 0273303220
Centaland - Blenheim 0212282774

Question 11

Payment Terms

Accepted Answer

Gravel Lock’s payment terms are prepaid or, if approved, on account.

Question 12

Can I store RDC?

Accepted Answer

Yes you can store RDC outside for up to 12 months in a cool dry place. The easiest way to store your RDC is in totes or in a tank that can hold heavy liquids (1.3 SG).

Question 13

What is the Specific Gravity of RDC?

Accepted Answer

RDC has a SG of between 1.24 and 1.3 which needs to be accounted for when shipping or storing the product.

Question 14

Does RDC have environmental approval?

Accepted Answer

Yes RDC is approved pursuant to the EPA Approval Code: Construction Products (subsidiary) – HSR002544 
Most NZ Councils do not need approval for RDC as it is an approved activity, however where consent is required, Gravel Lock has or, will gain the correct approvals.

Question 15

Should I undertake a trial before making a large order?

Accepted Answer

Gravel Lock has many case studies that you can view on the web site for successful works with Road Dust Control, however you can certainly undertake a small trial.  
Minimum purchase is 1000ltrs in an IBCs.

GRAVEL LOCK - NEW ZEALAND'S PREFERRED SUPPLIER OF DUST SUPPRESSION, ROAD REPAIR & EROSION CONTROL PRODUCTS

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