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Application Process

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  • Prevents mudding, washboarding and potholes
  • Prolongs useful life of equipment
  • Non-hazardous and environmentally friendly
  • Reduces road maintenance costs
  • Improves access to fields and land
  • Building and maintenance expenses are a fraction of the cost of concrete or asphalt
  • Delivers maximum benefits at an affordable costs

Layering ROAD-HARD and TerraZyme creates a hard earthen slab
Past Performance:
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1. Prepare the Soil

Use tillers and disks to pulverize the soil to a depth of six inches of greater, preparing for the DuroEarth process.
Close up of soil being tilled
Picture
Tilling soil

2. Apply enzyme solution

A water trailer or a truck outfitted with an adjustable spray bar will distribute the soil hardening enzyme solution.
Use water trucks to dilute the enzyme
A spray truck applies the enzyme mixture to the soil

3. Mix the soil

Once saturated, the enzyme is mixed thoroughly into the soil using a tiller of the TR3. Turning the soil over with a motor grader blade also provides excellent mixing.
Till the soil to mix the solution.
Turning the soil over to mix the solution.

4. Create windrows

The enzyme-treated soil is then bladed to the side in windrows, exposing a solid road base. The treated soil is left to cure in the windrows for 24-48 hours. This process begins to dry and harden the soil.
windrows graphic
Blading soil to the side to create windrows.

5. Crown the road base

The road base is crowned or sloped, and then compacted while the enzyme soil cures over a 24-48 hour period. 
Crowning the road base and compacting.

6. Apply ROAD-HARD

ROAD-HARD is applied in its dry state by a drop spreader to the compacted road base. It is mixed into the ground with the tiller to a 2-inch depth. 
Loading drop spreader with ROAD-HARD
ROAD-HARD is layed down on road.
Picture

7. Apply ROAD-HARD additive

The ROAD-HARD Additive (not the enzyme) is then mixed and sprayed onto the ROAD-HARD covered base. This is then scarified, compacted, and left to dry. This prevents the capillary rise of water.
Picture
Scarifying the soil.
ROAD-HARD additive is sprayed on the soil.
Roller compactor.

8. Replace windrowed soil

After 24 hours the curing enzyme treated soil is replaced over the waterproofed layer and compacted.
Windrowed soil is replaced on the road base
The windrowed soil is compacted
Picture

9. Final application of ROAD-HARD

The roadway and shoulders are treated with ROAD-HARD again (repeat step 6). This waterproofing solution encases the enzyme hardened soil in a water-resistant envelope. 
Picture
Final application of ROAD-HARD
Final compaction of soil
Completed DuroEarth stabilized and resistant road.
After DuroEarth application.

The DuroEarth process is a comprehensive method for building durable, water resistant roadways, runways, hardstands and berms. The patented process uses eco-friendly polymers and enzymes to harden soil and create a water-resistant "slab" of earth that is functional year round and resists erosion and supports traffic. This hardened slab is encased in a hydrophobic envelope of soil that prevents both the surface penetration and the capillary rise of water.​​

Contact us for quantity and pricing consultation at (703) 299-9575 
ROAD-HARD and TerraZyme can be purchased on our store.