Evaluation of the Influence of Plastic Waste in Improving the Mechanical Characteristics of Asphalt Mixes (Senegal, West Africa)
- 1 National Hight School of Mining and Geology ex IST, UCAD, Dakar, Senégal
- 2 Science and Technology Department, Iba Der Thiam University, Thiès, Senegal
- 3 National Hight School of Mining and Geology ex IST, UCAD, Dakar, Senégal
- 4 UFR Engineering Sciences, Iba Der Thiam University of Thies, Thies, Senegal
- 5 Speciesanalytik Laboratory, Dakar, Senegal
- 6 Aventurin Waste ONG, Bochum, Germany
- 7 Department of Geology, UCAD, Dakar, Senegal
- 8 Science and Technology Department, Iba Der Thiam University, Thiès, Senegal
- 9 Ecole Supérieure Polytechnique, UCAD, Dakar, Senegal
- 10 Department of Geology, UCAD, Dakar, Senegal
Abstract
The recovery of plastic waste has a positive impact on two fronts: The environment, through waste reduction, and the economy, through its use in road construction. This work involves recycling plastic variants such as Polypropylene (PP) 50% and LDPE (Low Density Polyethylene) 50% in proportions of 2% to 8%, incorporated into a 0/14 BBSG. The results of the Marshall test gave stability values ranging from 826 to 1523 kg and creep values from 5.5 to 2.45 mm. The Duriez test gave r/R values ranging from 0.769 to 0.786, with water absorption percentages from 2.24% to 0.69%. The PCG test at 80 gyrations gave void percentages ranging from 11.9% to 5.23%. The rutting test gives a rutting depth percentage that drops at 30,000 cycles from 11.5% to 1.3%. This study shows a considerable increase in the mechanical characteristics of asphalt mixes by adding plastic waste.
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