Asphalt recycling technology has been used in Ontario on a seven-kilometer road rehabilitation project and saved 46 percent of the asphalt from the landfill. In a five-kilometer stretch of highway near Sudbury last year, it was used to complete the workdays ahead of schedule. In Sweden and Norway, this technology is used on road rehabilitation projects, and it has even been used at the Prague International Airport. In addition to Canada, it is being used in Sweden.


The sensors are protected from corrosion so that they can gather data for years. If used on a road, these sensors could help engineers determine when to replace old concrete. One project in Lu’s lab is working to develop self-healing concrete for road surfaces. Concrete is vulnerable to cracks during the freeze-and-thaw cycle of winter. Water drops on the surface, freeze, and expand when temperatures drop below freezing, and it causes cracks in the road over time.

The maintenance cost depends on how long the sensor is expected to operate. Over-roadway sensors can last from 35,000 to 90,000 hours before needing repair. Unlike inductive loops, over-roadway sensors require less maintenance than their inductive counterparts. Some factors can contribute to road deterioration, such as poor subsoil and other variables. The decision on which sensor to use depends on the timing intervals desired.

Modern mobile sensors provide real-time data on road conditions. The data collected from these sensors can improve the visibility of roads and support the creation of traveler warnings. While stationary sensors are essential tools, they can’t measure everything. Therefore, mobile sensors can help municipalities plan their winter road maintenance operations better. These sensors have a significant impact on winter road maintenance, and they can improve the accuracy of winter road maintenance.

Milling machines

Milling machines are the latest innovations in road maintenance and repair. They apply a specialized mix of hot and cold refractory material on various types of road base lays. Modern cold recycler machines feature hydraulically steerable, height-adjustable crawler units and a milling drum located in the center. This modern construction method is well-known worldwide and is unrivaled economically. To serve these different needs, manufacturers have perfectly designed their milling machines to match these purposes.

One of the benefits of milling machines is that they can quickly and effectively repair pavement damage. These machines have many uses, including maintaining curb and gutter lines, repairing utility cuts, and spreading sand and chippings. They can also efficiently remove material from roads and sidewalks near overhead structures and transport the milled materials to a dump truck. 

As an environmentally friendly option, a machine from also improves road conditions. This modern technology is used to repair and maintain roads while saving resources for new asphalt. It can also reduce road surface imperfections such as unevenness, bumps, and fire damage. It also helps in improving road conditions and preventing accidents. 

Spray-and-chip seals

Chip seals are two-part systems applied to pavements to improve the surface’s waterproofing properties. A layer of crushed rock is then applied to the chip seal, and the crushed rock is the source of the term “chip seal.”

Chip seals prevent the deterioration of asphalt surfaces caused by sunlight and water. They also prevent oxidation by keeping the asphalt surface protected from erosion factors. During hot weather, chip seals may flow back together. These benefits are evident in a chip seal’s performance. This process has proven to be highly effective in preventing roadway damage. Chip seals are considered the safest way to protect roads from oxidation.

Ultrasonic imaging

Ultrasonic imaging is a modern technology that uses sound waves to detect and identify structural problems. These waves bounce off different objects and can be interpreted by trained technicians. The device uses a high-frequency sound pulse to detect and analyze the condition of the bearing. The technology can be used in almost any environment and can be used to determine if repairs are necessary. Its versatility makes it easy to use in various fields. New technologies for road repair and maintenance are undergoing research around the world. 

Modern ultrasound equipment is very quiet. Ultrasonic imaging equipment is effective for road repair, maintenance, and many other applications. The modern equipment also provides road inspectors with a high-definition image of the road conditions. These images can be used to monitor the condition of the road and determine the best course of action to improve the road.

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