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Water Extender & Dust Suppressant RT9

Supplier: Reynolds Soil Technologies

Water used to control dust on a haul road will not penetrate into the surface easily due to a combination of the fine particles being hydrophobic (water repelling) and the haul road surface being so tightly compacted by heavy machinery movement.

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RT9 Water Extender & Dust Suppressant

For Haul Road Dust Control And Water Savings

Water And Dust Issues

Water used to control dust on a haul road will not penetrate into the surface easily due to a combination of the fine particles being hydrophobic (water repelling) and the haul road surface being so tightly compacted by heavy machinery movement.

To combat this situation the water cart operator will flood the road surface in an effort to force the water into the road surface.

Flooding of the haul road creates surface slurry which allows the dust suppression water to evaporate much faster as the road surface is loose and saturated. Upon drying the haul road surface becomes quite loose creating dustier conditions with a rough running surface.

Solution

RT9 Water Extender combines fast acting wetting agents with polymer binders that are developed specifically for each site.

This unique liquid acts in two ways:

1. Water Penetration

RT9 Water Extender breaks the surface tension between the road surface material and the water to allow the water to penetrate deeper into the tightly compacted haul road surface rather than sitting on the surface creating a slurry and evaporating fast.

This action reduces the amount of water required to suppress dust per m2 of haul road by approximately 50%.

2. Binding

RT9 Water Extender physically binds the fine particles together to form a larger bound mass. This action of 'mass agglomeration' means the particles become much heavier, which in turn reduces their ability to be blown away as dust.

A water cart can now travel up to 50% further with one load of water and not return to previously watered areas for a much longer period of time.

Application

RT9 Water Extender is dosed into the water cart at very low dosage rates and applied regularly.

This is the most effective way to incorporate an additive into a haul road watering program as it is less affected by maintenance grading, spillage and rain.

If the treated surface material is graded to the side of the road during road maintenance or rain it can simply be pulled back across the road and the program continues.

Benefits

Reduced Water Usage & Dust

  • Approximately 50% less water required.
  • Fines are bound in the road surface reducing re-watering frequency.

Road Condition and Maintenance

  • Improved running surface resulting in reduced tyre wear and fuel usage.
  • Reduced roll resistance.
  • Reduced maintenance.
  • Faster road recovery after rain.
  • Increased pavement strength.

Water Cart and Grader Savings

  • A decrease in operational hours.
  • Equipment can be parked up or reallocated.

Increased Production

  • With improved haul road network safety which allows for increased production

A system

  • The program is monitored, measured, and reported monthly to management ensuring desired results are achieved.

Education And Training

"It is not just a product it is a system"

RST's 'Haul Road Management System' (HRMS) is a combination of a site specific Rt9 Water Extender, strategies, equipment modifications, training programs and monitoring procedures all aimed at improving haul road watering and grading inefficiencies.

Automatic Dosing

RT9 Water Extender is dosed into the water cart at the water stand using remote dosing pumps that require minimal operator involvement.

Environment

All RST products are environmentally safe and user friendly. For further detailed information on a specific product or application please contact RST Head Office.

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