Search results
Results from the WOW.Com Content Network
Aqueous lignosulfonate solutions are also widely used as a non-toxic dust suppression agent for unpaved road surfaces, where it is popularly, if erroneously, called "tree sap". Roads treated with lignosulfonates can be distinguished from those treated with calcium chloride by color: lignosulfonates give the road surface a dark grey color, while ...
Dust control is most commonly used in vineyards, orchards and logging roads. Dust abatement methods generally fall into four categories. The first two are petroleum-based products, such as emulsified asphalts, but they are considered environmentally hazardous, according to the report.
Bulldust also poses a problem for the mining industry, who have developed their own solutions to control the dust. Regulation of bulldust involves regular watering-down of the surface, and application of a chemical onto the road surface that hardens the road and suppresses the dust. Chemicals used include Zero, RT8, Shield AWR, Magnet and DustWorx.
Since 2001, truckers have complained about "killer chemicals" on roads and now some states are backing away from using salt products. [23] [24] A small percentage of owners of indoor arenas (for example, for horse riding) may apply magnesium chloride to sand or other "footing" materials to control dust.
Road salt (also known as de-icing salt or snow salt) is a salt used mainly as an anti-slip agent in winter road conditions, but also to prevent dust and snow build-up on roads. [1] Various kinds of salts are used as road salt, but calcium chloride and sodium chloride (rock salt) are among the most common.
Chip seal products can be installed over gravel roads to eliminate the cost of grading, road roughness, dust, mud, and the cost of adding gravel lost from grading. Adding chip seal over gravel is about 25% of the price of resurfacing with asphalt, $170,000 for a 4-mile project done in Minnesota [6] compared to $760,000 had it been redone with ...
Road dust is a significant contributor to the generation and release of particulates into the atmosphere. [9] Control of road dust is a significant challenge in urban areas, and also in other locations with high levels of vehicular traffic upon unsealed roads, such as mines and landfills. Road dust may be suppressed by mechanical methods like ...
Roads are also treated by spreading various materials on the surface. These materials generally fall into two categories: chemical and inert. Chemical (including salt) distribution induces freezing-point depression, causing ice and snow to melt at a lower temperature. Chemical treatment can be applied as a preventive measure and/or after snowfall.