DPM uses geo-grids, recycled tyres, steel slag to pave roads in Abu Dhabi

Authority is using eco-friendly materials, including recycled concrete and asphalt-polymer mixes, to build roads sustainably

Abu Dhabi is sustainably paving roads [representational image].
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Abu Dhabi is sustainably paving roads [representational image].

Abu Dhabi’s Department of Urban Planning and Municipalities (DPM) has announced the implementation of six projects using eco-friendly methods and materials in the construction of roads.

DPM rolled out the initiatives after following a multi-phase process that involved the study and analysis of the materials' suitability for the local climate, as well as pilot projects that tested whether the materials were effective, sustainable, and ready for implementation.

In a statement, the department said that reinforcing asphalt pavements using geo-grids reduced the thickness of paving layers, and the amount of raw materials used in constructing roads. The method also decreased construction time, lowered operating costs, extended road lifespans, and reduced carbon emissions.

DPM’s project using crushed concrete aggregates in paving road bases promotes the recycling of concrete waste, and its operational efficiency has increased through the application of cold in-place recycling in pavement rehabilitation.

The department’s initiative to improve asphalt mixes by combining them with polymer materials was launched after a series of performance tests, and was implemented for nine infrastructure projects in Abu Dhabi.

In cooperation with University of Sharjah, DPM has started implementing pavement projects that use steel slag aggregates in modified asphalt layers to enhance infrastructure sustainability.

The department also combined the processes of recycling tyre waste and paving durable roads by implementing a project that improves asphalt layers using recycled crumb rubber. The project, which is guided by ASTM International guidelines, enables the reduction of noise from road traffic.

Commenting on the sustainable methods implemented in the construction of roads, executive director of DPM's strategic affairs sector and chairman of its technology committee, HE Mohamed Al Khadar Al Ahmed, said: “For a number of years, the department, in cooperation with its strategic partners, has focused efforts and resources on delivering a high level of sustainability across all of its projects. The result has achieved significant enhancements for transport and infrastructure networks in Abu Dhabi.”

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