ROAD BUILDING

Perma-Zyme  is easy to apply and requires no special equipment nor application procedures. It can be used with reclaiming machines or applied with regular road building machines. Perma-Zyme  should be used with soils that contain approximately 20% cohesive fines. It is mixed with water used for compaction during normal road building techniques. A typical application to stabilize a 6-inch existing or new road base is presented as follows:

 

If the existing road bed is too hard to blade, scarify to the required depth. Normally this should be done dry for better traction.

 

Add one gallon of Perma-Zyme  concentrate to the required amount of water needed to bring 165 cubic yards of material up to optimum moisture. The amount of water needed will depend on how wet or dry your material is. A general starting rule for dry material is one gallon to 1,000 gallons water. With top loading water tanks, always fill the tank with water first, then add the Perma-Zyme . Failure to do this will result in a tank full of foam.

 

Spray the Perma-Zyme  water solution over the road surface and start the blade mixing. Continue adding Perma-Zyme  and water while mixing until the required amount of Perma-Zyme  is distributed evenly throughout the material. During this time you should learn if the Perma-Zyme  to water ratio should be changed. 15 gallons of Perma-Zyme  will treat one mile 25 feet wide and 6 inches depth. If you misjudge the water and get the material too wet, blade to dry. If the material is too dry, add plain water. After thoroughly mixing, leave the soil material in a windrow overnight to promote total moisture absorption. We recommend this whenever possible for better compaction results with less effort.

 

If the road base is too dry the next morning, or after the material is thoroughly mixed and ready to lay, spray the surface with a Perma-Zyme  water mixture of one gallon to 10,000 gallons water (approximately one pint to 1,200 gallons) before you pull it out of the windrow. Always start to lay the material on a damp floor. Pull the material out and lay in 2 or 3 inch lifts. Start compaction immediately, in sub-base fill, or pond areas, a sheepsfoot works fine, but usually a steel or pneumatic roller works best for finished roads. Continue compaction while you shape and dress the surface with a blade. Be sure to crown the surface to promote water drainage.

 

Even while laying and compacting, if your material dries too fast on a hot day, a light mist of Perma-Zyme  treated water (1:10,000 gallons) can be applied. Continue to compact until the desired density is reached. Vibratory rollers may be used, but turn the vibrator off when finishing so that no fracturing occurs. The road is now ready for use. If you foresee heavy, high-speed traffic, involving spinning or skidding wheels, you might consider closing the road until the material has had a chance to cure for 2 or 3 days. Normal traffic will not harm it.

 

If an asphalt or other permanent wearing surface is to be added, a better bond can be obtained by moistening the surface with a spray of Perma-Zyme  and water solution (1:10,000 gallons). This permanent surface can be applied at any time after a 3 to 5 day curing period under good weather conditions