Iranian Artisans Produce Domestic Self-Repairing Bitumen

Monday, May 6, 2019 - 15:29

Iranian artisans have created bitumen with a self-repairing property to approximately double the service life of the pavement.

According to an ISCA report, the head of a technology unit, located in Hamedan Science and Technology Park, stated that in order to boost asphalt resilience and its resistance, Iranian researchers created self-repairing bitumen for the first time in the country that would significantly extend the lifespan of most roads.

Self-healing technology is a new field within material technology. It represents a revolution in materials engineering and is changing the way that materials behave. Incorporating self-healing technology into the road design process has the potential to transform road construction and maintenance processes by increasing the lifespan of roads and eliminating the need for road maintenance.

Asphalt is a mixture of gravel and sand held together by bitumen, a thick, viscous mixture that acts as a glue. As roads age, the bitumen wears down and pieces of asphalt erode, causing small cracks that soon balloon into big potholes. This process of erosion, called raveling, is caused by oxidation, UV rays, freeze-thaw cycles and other factors.

Ali Ghanbari explained that this product is useful to find out how self-healing materials could improve road safety and lifespan. Being resistance against cracking and moisture, improving rheological and physical properties as well repairing damages are some features of this product.


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