Equipment : Recovery of construction waste for the construction of recycled roads

This road, which will be built as part of the RE-MED project, co-financed by the European Union, is 1.2 kilometers long. It includes 4 sections: 3 sections which will allow testing the integration of one or more recycled materials and a 4th which constitutes a reference section made with non-renewable natural materials. This road will be equipped with sensors which make it possible to monitor its behavior in real time under the effect of traffic and changing climatic conditions. The objective is to evaluate new road structures and analyze the impact of climatic variations.

The sensors also collect data to detect damage such as wear, cracks and deformation, in order to identify problems as soon as they appear. The data also contributes to creating mechanical behavior models to simulate the responses of the roadway to different constraints.

The objectives of this project, as presented by Oumaya Marzouk, coordinator of the RE-MED project, consist of demonstrating the interest in the valorization of construction and demolition materials in a context of tension on the aggregates market, of creating local jobs, to reduce health and flood risks linked to the proliferation of landfills of construction materials, to reduce pressure on land and the carbon footprint and to adapt roads to climate change.

Speaking at this workshop, the Minister of Equipment and Housing, Sarra Zaafrani, indicated that “the creation of a test board on national road No. 3 is a pilot experiment aimed at validating a new product and a new procedure”.

“The good monitoring and optimal management of the data received from the monitoring system, operated for the first time in Tunisia in terms of road construction, will allow us to compare the behavior of roadways built with natural raw materials and those with recycled materials and to evaluate the technical efficiency of the use of demolition and construction waste”.

“In addition to technical validation, a regulatory, legal and normative basis is recommended to ensure the introduction of demolition and construction waste into the road construction market in Tunisia and to provide the various stakeholders with the necessary guarantees.”

Still according to her “the management of demolition and construction waste represents major challenges given the limited resources of raw materials and the positive impact on the environment and public health”.

For her part, the Minister of the Environment, Leila Chikhaoui recalled that the recovery of demolition and construction waste constitutes an important axis of the national circular waste management strategy adopted as part of the validated National Ecological Transition Strategy. last February.

Chikhaoui estimated that the recovery of construction waste will make it possible to resolve both ecological problems (freeing up spaces occupied by this waste), and economic problems (injection of new resources into the infrastructure and furniture construction market). urban) and social (creation of businesses and jobs).

The RE-MED project “Application of innovation for the development of the circular economy for sustainable construction in the Mediterranean” aims to experiment and transfer between the 4 partner countries, namely Tunisia, France, Italy and Lebanon, technologies for transforming this waste into artificial aggregates, with the aim of reducing the environmental and health impacts due to failures in the management of this waste.

https://www.webmanagercenter.com/2023/09/13/513637/equipement-valorisation-des-dechets-btp-pour-la-construction-des-routes-recyclees/