Road dust control products self-emulsify in water through wetting, binding, crusting, foaming, and foam-binding actions. When sprayed onto the soil surface of roads, their binding effect aggregates fine particles into larger, less dust-prone aggregates, forming a stable mixture that neither volatilises nor hardens. This prevents spontaneous combustion while achieving dust suppression, creating a dense protective layer against external dust and other contaminants.
I. Product Characteristics
- Contains no heavy metals, organic halogen compounds, petroleum by-products, organic solvents, or inorganic salt compounds, posing no harm to human health.
- High solids content facilitates convenient transportation; ready for use after dilution to specified ratios.
- Water-based formulation with neutral pH, preventing corrosion of spraying equipment.
- Once dried and film-formed, becomes insoluble in water and impervious to water damage.
- Compatible with any water quality; requires minimal equipment and low investment.
- Effectively reduces coal moisture absorption and oxidation rates, mitigating spontaneous combustion tendencies.
- Rapid wetting of coal with short penetration time.
- Maintains long-term protective properties on coal even at low temperatures.
- No adverse effects on coal properties such as calorific value.
II. Application Sites
- Roads in urban areas with high vehicle density
- Roads surrounding construction sites within cities
- Citywide roads during periods of elevated air pollution indices
- Road sections in heavily polluted zones
III. Mechanism of Effect
Dissolved in water and sprayed onto road surfaces, the product effectively binds PM10 and PM2.5 particles into larger aggregates via chelation, preventing resuspension. Its wetting agents enable rapid and efficient spreading.
Road dust control products are environmentally friendly, with all components biodegradable and non-contributory to airborne pollutants.
Free from chloride ions, heavy metals, and organic solvents, it is non-toxic and harmless to humans upon contact. It effectively reduces particulate matter in road environments, lowering PM10 concentrations by approximately 30% and PM2.5 concentrations by approximately 10%. Application equipment is straightforward, utilising existing sanitation spraying vehicles without incurring additional facility costs. During winter, it may serve as a de-icing agent, mitigating damage to road surfaces and surrounding vegetation caused by chloride salts.
Through its highly efficient moisture retention and dust suppression mechanism, road dust control products significantly slow the evaporation rate of surface moisture, prolonging road surface hydration. This reduces the need for frequent watering, thereby maintaining stable dust suppression effects while substantially conserving water resources and lowering maintenance costs. Such performance aligns with societal trends towards energy conservation and emissions reduction.
|
Item |
Result |
|
Sodium chloride |
≥50% |
|
Phytase |
＜3% |
|
Polyvinyl alcohol |
≤10% |
|
Polyethylene glycol |
≤5% |
|
Sodium carboxymethyl cellulose |
≤3% |
|
Hydroxypropyl methylcellulose |
≥10% |
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