Abstract Stone Mastic Asphalt, SMA, is widely used in the provincial roads in the Netherlands as surface layers due to its excellent performance and long lifespan of 15–20 years. However, this SMA mixture is made with 100% new materials and no recycling is permitted due to quality concerns. Together with provinces Gelderland, Noord-Brabant, Overijssel and Dutch Ministry of Transport (Rijkswaterstaat), sustainable SMA variants are developed in this paper with high quality, 80% of recycling and can be produced at low production temperature of 115 °C. The high quality SMA mixtures with up to 80% recycling are designed with reclaimed aggregate fractions (with bitumen content less than 1%) and bitumen-rich mortar fractions (with bitumen content 10–12%) obtained from an innovative decomposition technique with the support of the European Life+ program. To achieve the low production temperature of 115 °C, two foaming technologies have been applied, namely bitumen foaming and mortar foaming. With the positive results of the laboratory research, in July 2018, total 4 km demonstration sections, with sustainable SMA mixtures containing up to 80% recycling and produced at 115 °C, have been constructed successfully in two Dutch provincial roads N317 and N625 in Gelderland and Noord-Brabant.
Sustainable Warm In-plant SMA Mixtures with 80% Recycling and Produced at 115 °C
Proceedings of the 5th International Symposium on Asphalt Pavements & Environment (APE) ; 4 ; 283-293
Lecture Notes in Civil Engineering ; 48 , 4
2019-08-30
11 pages
Article/Chapter (Book)
Electronic Resource
English
Performance Assessment of Plant-Produced Warm Recycled Mixtures for Open-Graded Wearing Courses
Transportation Research Record | 2017
|Comprehensive Laboratory Evaluation of Recycling Agent Treated Plant-Produced Asphalt Mixtures
Transportation Research Record | 2022
|Evaluations of Plant-Produced Foamed Warm Mixture Asphalt
TIBKAT | 2016
|ENERGY RECYCLING SYSTEM USING WARM WATER DRAINED FROM POWER PLANT
European Patent Office | 2018
ENERGY RECYCLING SYSTEM USING WARM WATER DRAINED FROM POWER PLANT
European Patent Office | 2017
|