Road dust suppression using lignosulfonate on unpaved road

Aqueous Lignosulfonate dust suppressant and the corresponding application concepts are tested on the Gobi soil sample and for a comparative study, Nalaikh soil samples were used in a laboratory scale in 2021. In this study, different concentrations of lignosulfonate dust suppressant were used in all tests except mechanical sieving and hydrometer analysis. The concentrations of lignosulfonate are: 2%, 4%, 6%, 8% and water. Mechanical properties of soil, Atterberg limit tests and hydrolysis analysis were carried out to determine the soil property, composition and swell potential which is the basis of the experiment. A laboratory soil compaction test on 5 different concentrations of lignosulfonate solution showed great values with 2% and 4% concentrated solution having the smallest amount of water content with high compaction value. And the lignosulfonate 6% solution illustrated the highest water content with moderate compaction value. About the Nalaikh soil sample, 2% and 4% solution on soil compaction test showed the smallest amount of water content with high compaction value. By using the proposed procedure to test lignosulfonate solutions, lignosulfonate 2% and 6% of solutions showed great results.