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What it is and How it Works
CleanTRACK™ is Trican’s long-term road dust suppression technology. CleanTRACK uses a proprietary, non-toxic chemical formulation that, when applied to gravel or soil surfaces, leaves a thin film on the minerals. This mineral coating creates an intergranular attraction between fines, which not only prevents them from becoming airborne, but will also compact the road to create a more durable and stable surface. The water repellent nature of this coating will control dust and promote water drainage, which will minimize water-related damage such as seasonal frost heaving, road depression and ruts.
The Trican team had the opportunity to apply this product on a private road for an application trial, as well as a vehicle road dust trial. CleanTRACK was applied on November 10, 2016 with a spray bar mounted on the back of a truck. The road was coated using an approximate loading of 0.75 L/m². Prior to the application date, there was no rain, wet or wintery conditions so the product was applied to a completely dry road. No mixing, compacting or tamping was required upon application since the product soaked into the road immediately. It should be noted that the road will appear wet, which allows operators to see where the product has been applied.
Two Week Update
The Trican CleanTRACK video was shot on November 24, 2016, two weeks after the product was applied to see how the product performed. Although the gravel and soil had a darker appearance than the untreated road, it felt dry to the touch. The product had penetrated and completely covered the visible gravel and soil. Manually brushing around the road surface revealed no visibly uncoated or lighter spots.
During the road dust trials, multiple vehicles were driven continuously up and down the uncoated and coated parts of the road to demonstrate the visible difference in airborne fines between the two sections (see sidebar picture and Trican’s You Tube Video: Search “Trican CleanTRACK”).
Five Month – Winter/Spring Update
Five months post application, the Trican CleanTRACK™ trial road has seen positive results coming into the spring season. Over the past winter season, the treated road was exposed to extreme weather such as cold temperatures, snow, rain and Southern Alberta chinooks. The treated road is still visibly darker than the untreated sections and the coated section continues to prevent airborne fines and dust plumes from the passage of vehicles. As the temperatures warmed up, it was noted that the trial road was directing snow melt and water flow away from the road as opposed to absorbing it, which helped maintain the integrity of the road.
Samples were obtained from the road at each stage of the testing process: untreated, 2 weeks treated and 5 months treated. After the samples were analyzed in our lab, both treated samples (2 weeks and 5 months) still demonstrated the full characteristics of CleanTRACK treated soil. All three samples were placed in water and agitated and, as seen in the images below, the treated samples maintained their integrity, the intergranular attraction between fines kept the sample water clear and particle free, and the road material settled to the bottom of the bottle. In comparison, the untreated sample shows murky, cloudy water from the dispersion of fines.
To further demonstrate the longevity of our product, the Trican lab devised a test to show how road material treated with CleanTRACK would hold up to continuous fluid exposure. The test was prepared by packing a column with CleanTRACK coated road material at our recommended loading of 0.75L/m². The column temperature was set to 22°C as fresh water was circulated through at a flow rate of 20mL/min. After each volume of fluid passed through the column, the fluid was then tested to calculate the amount of CleanTRACK chemical released into the water over time. The results in the chart below show that 100% of the CleanTRACK chemical remained on the road material following 1,000 fresh water flushes through the column.
The equation used for this test: CleanTRACK Chemical Remaining on Road Material = (Amount of CleanTRACK Applied to Road - Amount CleanTRACK Chemical Released into Water)