ASPHALT EMULSIONS: DUST SUPPRESSION SYSTEMS
PRODUCT INFORMATION
Environmentally Friendly.VSS Emultech® are manufacturers of a line of excellent dust suppression systems. The function of dust suppression is to a reduce dust for extensive periods of time. This saves on the use of water to dampen the pavement surface.
VSS Emultech® have several systems for different applications.
Lignosulphonate Treatments:
Calcium lignosulphonate is a salt formed in the wood pulping process during paper making. In this process LIGNIN, a polysaccharide or complex sugar, is extracted from the wood. As lignin is the substance that holds wood fibers together.
The resulting salt is extracted from the liquor, as the liquid is known and dried. This makes an inert, environmentally neutral material that is non toxic.
As lignosulphonates are salts they are readily dissolved in water.
As it's a stiff glue it can aggregate and hold together particles of dust.
In a water solution the material can be easily applied. Being a true solution it will penetrate pavement surfaces and so affect the top layers of the granular pavement. As it dries and deposits on the particles of the pavement it will glue them together. This leads to a stabilization effect. That is the pavement is increased in load bearing strength.
When combined with asphalt emulsion flexibility and waterproofing is also improved.
Similar products are extensively used in Australia, New Zealand and Canada as well as USA.
Products:
Uses:The product is safe so can be used near lakes, streams, aquifers and will not affect wild life. This makes it suitable for forestry roads ( used by government forestry departments) and rural and farm roads. Suitable as a dust palliative for mining areas Dope 10 ® and Dope 100 ® reduces water use for dust suppression by as much as 75%.
Application:
Liquid versions of Dope® may be sprayed using a water cart, distributor sprayer or agricultural sprayer.
Powder must be dissolved in water first. Dope 100® is mixed with water at about 0.5lb-1lb per gallon of water. (5-10% by weight). This may be done by circulation , agitation or mixing. It is then directly sprayed .
30-45% solutions may be made up for dilution on the job. For this a mixing tank with stirrer is required. Warming water to 30-40C will assist mixing as will SLOW addition of the powder.
Water Truck suitable for application and mixing.
Powder materials: 50lb multiwall bags
Liquid in bulk or 55 gallon drums.
Safety:
No elevated temperatures are required and all application solutions are water based. Non toxic, non corrosive, neutral solutions. Dope products are 100% safe.
ALSO ask about VSS Emultech® magnesium chloride in liquid or powder for quick fix applications for dust control.
