The rmited invented a 3 % more resistant clay concrete, with less cement

Conventional cement is a polluting product. However, This is mainly due to its energy -consuming production process which issues a large amount of CO2. In addition, According to estimates, this sector is responsible for around 8 % of global greenhouse gas emissions. Similarly, A rate that unfortunately risks increasing in the coming decades if no measure is adopted to Limit the environmental. Nevertheless, impact of concrete. Similarly, Indeed. Therefore, with the rural exodus and the projects to create new cities which are more and more numerous around the world, demand for cement continues to climb. Similarly, With this observation. Similarly, researchers from the Royal Institute of Technology in Melbourne (RMIT), in Australia, have created a new type of concrete which, in addition to being more respectful of the environment, would have better mechanical resistance.

Lower quality illite clay – Rmited invented 3 % more

Kaolin has always been considered rmited invented 3 % more an ecological alternative to clinker. Therefore, one of the key ingredients in Portland cement. However, this material is also used in industries such as ceramics and cosmetics. This increases its price and reduces its availability. A new study published in the journal Construction and Building Materials presents a process developed by the RMIT team. It uses low-quality illite clay, an inexpensive and widely available material. For obtain a clinker substitution materialscientists from the Australian university have mixed this type of clay with inexpensive kaolinitis.

An innovative process

Concretely. Roshan jayathilakage and his colleagues have created an equal mixture of the two materials that they then heated to 600 ° C. It turns out that this process. known as co-calcination, optimizes the way in which the illite clay links to water and cement thanks to a phenomenon known as the pozzolanic reactivity. “This approach allows us to substitute 20 % of the cement with lower quality. kaolin mixtures, while improving the performance of the final product”explained the Dr. Chamila Gunasekarafrom the RMIT engineering school.

A promising advance

Interesting. With this new mixture, concrete is gaining in performance : its compression resistance would increase by around 15 %, a promising advance for sustainable construction projects. The researchers also found a drop in porosity of 41 %. rmited invented 3 % more The new material would be inexpensive to produce thanks in particular to the rationalization of industrial operations. Indeed, the co-Calcination process reduces energy consumption and simplifies the production process.

Note that in addition to this innovation. the RMIT team has developed in collaboration with the University of Hokkaido, in Japan, a tool rmited invented 3 % more that makes it possible to assess materials more quickly by means of computer simulations. More info: Sciencedirect.com. Do RMIT research teams frequently develop new types of concrete, do this research interest you? I invite you to give us your opinion. your remarks or put an error in the text, click here to publish a comment.