The Technion
The stage of application and institutionalization of the technology of glass waste recycling in asphalt mixtures for roads has arrived
The Technion researchers, in collaboration with the National Road Society in Israel, will participate on Monday night in the construction of a road in Holon, which includes recycled glass. This, following the good results of a study conducted by Professor Ilan Yishai from the Faculty of Civil and Environmental Engineering with the participation of Eng. Aryeh Geller as the main researcher. In this framework, about 20 tons of crushed glass will be combined with 400 tons of asphalt mixture in the construction of an upper layer of glass-asphalt with a thickness of five centimeters. The experiment will be conducted on the entrance route to the city of the Warriors Street, between the Qualifying and the Heroes streets. The production of the mixture and the paving will be carried out under full quality control of the research team at the Technion and the administration for infrastructure in the municipality of Holon.
Professor Yishai said that about a year and a half ago, the first phase of a multi-year study on "recycling glass waste in asphalt mixtures for roads" was completed at the Institute for Transportation Research at the Technion. In this study, which was funded by the Ministry of the Environment, it was found that it is possible to successfully incorporate crushed glass waste, container fragments and glass bottles, into upper asphalt layers on roads. The research included a wide series of experiments in the laboratory, and the execution of two test sections on busy roads in the Haifa area. The findings of this study in Israel, similar to similar studies in the world, indicated that glass-asphalt mixtures function properly even in the most severe conditions of traffic and climate. It was found that by adding glass fragments in quantities of up to 10% of the aggregates, dense, strong and sustainable asphalt mixtures are obtained, similar to the normal mixtures used in the road construction routine.
"This research and its positive results have important environmental benefits in the overall effort to recycle solid waste and prevent disposal in landfills and landfills, and in reducing the amount of mining of aggregates in quarries," said Professor Yishai. "In addition to these advantages, the expected advantages in reflecting light and visibility of the road strip at night and in the effect on the coefficient of friction between the tire and the road must also be verified."
As part of the research program of the National Roads Society in Israel, and in cooperation with the Technion, it was decided to continue to finance this research and move it to the stage of implementation and institutionalization of the technology. In this practical phase, additional parameters of the glass-asphalt mixture will be investigated, such as: visibility and gloss at night and the friction of the road surface. In addition, additional winding sections will be performed under full control in which the production and winding processes and the behavior of the mixture under realistic loading conditions will be tested over time. As part of the foundation of the technology, procedures, guidelines and specifications will be prepared for the design, production and laying of glass-asphalt mixtures under practical conditions.
A pioneering experimental section, as part of the current implementation phase of the research funded by the Ministry of Education, will be paved on Monday 11.9.06/XNUMX/XNUMX night in the area of the city of Holon. The execution of the section was carried out at the initiative of the city's infrastructure administration and in close and fruitful cooperation between the Technion and the OT with the following entities: the AL Recycling Corporation; the road contractor Yaakov Kafri; and company Y.A. Amit Engineering Ltd.
One response
I want to know who recycles glass?