When it comes to 3D printing, the sky is the limit. As 3D printing technology continues to advance, applications can be as far reaching as airplane and automobile parts to medical devices and even anatomically correct, biocompatible models. Although 3D printing technology is developing at a rapid pace, the technology itself is not new. It emerged in the 1980s as a means of creating rapid prototypes. In recent years the applications for 3D printed models have evolved with the available hardware, software, and printable materials. Evolving technology, paired with the creative and innovative minds of scientists, engineers, and physicians, has been the launching pad for developments within 3D printing technology specific to healthcare. One way 3D printing technology is poised to create better patient outcomes is in creating an anatomically and patient-specific models to aid in surgery and medical procedures. With the capability to 3D ...
Researchers at Texas A&M University in Qatar (TAMUQ) have developed a method using polymer that stabilize the soil under roads and in asphalt to provide more stability.
“Mixing polymers to subgrade soils, instead of the conventional practice of mechanical stabilization, resulted in higher strengths and stiffness than cement and more elasticity,” says Dr. Eyad Masad, a professor of mechanical engineering at the University. He gave a presentation about the development at TAMUQ’s first annual Research industry partnership showcase.
“Our research findings will contribute to long-lasting and better roads,” Dr. Masad says. The university is talking with Qatar’s public works authority to incorporate the method into infrastructure projects in that country, writes Bonnie James of Gulf Times.
The polymer mixed with subgrade soils decreases the brittleness of the road and prevents it from breaking and cracking because of heavy use. The mixture also reduces the amount of rutting, the creation of grooves, or the sinking of the road surface because of the passage of the vehicles.
“Asphalt roads in Qatar are constructed on loose soil,” Dr. Masad says, one of the reasons for road failure there. Researchers in laboratories at TAMUQ took soil samples used for road construction and mixed them with cement and the polymers. The polymer mix soils failed only gradually, and extended the lifespan of the road and increased its durability, the researchers say.
If developed commercially, the method could be one of the several similar products on the market that use polymers to strengthen roads, such a poly pavement,and Ecobond. The products also prevent soil erosion and improve water-wicking capabilities.
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