Removal of 3D print concrete challenges by adding aerobic bubble – | Iranian and world news

Mohammad Rasul Giokashi, a graduate of Amir Kabir University of Technology, with the guidance and guidance of Dr. Faramarz Modi, a faculty member, implemented a plan entitled “Evaluation of 3D Concrete Mixed Concrete Durability containing Bubble Additive”.

“Despite the development of industrialization methods in various industries, the construction industry is still traditionally going, while the industry can benefit from the benefits of new technologies,” said Gyukashi. One of the latest technologies in the industry is the construction of buildings and infrastructure by 3D printing method.

He said that the technology faces many challenges, one of which is the durability of concrete produced with 3D printers against environmental factors and destructive conditions.

“In this study, we concluded that if we use optimized amounts of aerobic bubble additive and concrete mixing, we will not only allow the durability of concrete to frost, but can also help improve its durability against other destructive factors,” said Amir Kabir University of Technology. In addition, this additive can also help with the new properties of these mixtures, especially rheology.

According to him, this could lead to an extension of the useful life of structures made with this method and help expand the use of this technique in the industry.

Referring to the details of the project, Giokashi stated that the study was one of the first studies in the field of 3D printing concrete at the university. In the first step, it was necessary to provide the necessary equipment. Because it is not possible to use any type of concrete mixture in these printers, it is necessary to prepare the appropriate concrete mix depending on the specifications of the machine, materials, etc.

He added: The 3D printing mix should be pumped and maintain its shape and structure after printing and layers on each other. In the third step, we added to the mixture of different percentages of the aerobic bubble additive, taking into account the previous considerations, and the samples needed to conduct empirical studies were made.

Giokashi emphasized: Given that the development of this technology in the industry needs to address the leading challenges, this research has taken a little step in that direction, and accordingly, several articles were published due to research innovation and comprehensiveness of this research.

According to him, examining the various effects of aerobic bubble additives on 3D print concrete, better resistance to frost damage, and reducing permeability and improving the durability of 3D print concrete are among the achievements of these studies.

The project executor noted: Providing a new solution to increase the durability of 3D print concrete, extend the useful life and reduce the maintenance costs of constructed structures in this way and solve research challenges and localization of technology are the benefits of this product.