Using Paper Production Industry Waste as Soil Stabilizer for Pavement Construction in Vietnam

The solution of using organic and inorganic chemical agents to strengthen soil for base, subbase or surface layers in road pavement has been applied for a long time in the world. In Vietnam, the method has been initially researched, but still very limited in practical application. Chemical waste from the paper industry has been studied and used around the world as a soil stabilizer in construction. The paper presents the research results from the use of lignosulfonate, which is derived from the waste of paper production process, collected from the paper factory located in Ky Son District, Hoa Binh Province, as the soil stabilizer, namely DBS-06, to strengthen the soil used as base, subbase or surface layers in road pavement. The research also proved that the DBS-06 agent is not only a good achievement on technical or economic sides, but also a fruitful outcome for environmental problem treatment in the paper industry.