May 16, 2020

Trump has stated that solar panels could be placed on the proposed wall

US Construction
US Construction
Catherine Sturman
2 min
Border fence in Nogales Arizona, separating the US from Nogales Sonora, Mexico
Although he decided to pull the US out of the Paris Climate Agreement (also known as the COP21), Trump’s business credentials have recently been bough...

Although he decided to pull the US out of the Paris Climate Agreement (also known as the COP21), Trump’s business credentials have recently been bought to the forefront with the notion of placing solar panels on the proposed border wall.

Originally stating that Mexico were to pay for the wall, which President Enrique Peña Nieto quickly rejected, Trump has now stated that the use of solar panelling will help provide cheap energy and support the funding of the wall.

Although the use of solar has been incorporated in a number of designs submitted, Trump has stated a rally in Cedar Rapids, Iowa that it is solely his idea, commenting, "Pretty good imagination, right? Good? My idea." The comment goes to suggest that Trump has either yet to look at the designs, or believes that he indeed is the first to make such a suggestion.

"We're thinking of something that's unique, we're talking about the southern border, lots of sun, lots of heat. We're thinking about building the wall as a solar wall, so it creates energy and pays for itself. And this way, Mexico will have to pay much less money, and that's good, right?" he added.

Within Trump’s election campaign, the proposed border wall was featured, in order to reduce the high levels of illegal immigration along the Mexican border. Since this time, the plans have been set in motion and approximately 20 companies have been shortlisted for their designs. It is unknown whether all companies who have been shortlisted will be announced, due to the controversy and revolt surrounding the construction of the wall itself.

To this effect, there has been no funding put aside for the project just yet, but Trump’s first year budget has proposed a $1.6 billion down payment on the project.

 

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Jul 30, 2021

University of Dresden constructs carbon concrete building

UniversityofDresden
construction
projects
CarbonConcrete
2 min
The Technical University of Dresden, collaborating with German architecture firm Henn, is constructing the world’s first carbon fibre and concrete building

The Technical University of Dresden, in partnership with German architecture firm Henn, is constructing the first building to be made out of concrete and carbon fibre, rather than traditional steel. 

The combination of materials, known as, “carbon concrete” has the same structural strength as its steel-reinforced alternative but less concrete is used, according to researchers at the university. 

The building, called “The Cube” is currently under construction at the University of Dresden’s campus in Germany, and is believed to be the first carbon concrete building in the world. Strengthening the concrete, the carbon fibre yarns are used to create a mesh into which the concrete is then poured.

Unlike steel, the mesh is rust-proof meaning that the lifespan of carbon concrete is longer than that of the more typical steel-reinforced concrete. This also allows the layers to be much thinner than steel. 

The design and shape of The Cube 

According to the companies, the flexibility of carbon fibre allows the walls to fold up and become a roof. In a statement talking about the building’s design elements, Hen said: “The design of The Cube reinterprets the fluid, textile nature of carbon fibres by seamlessly merging the ceiling and walls in a single form, suggesting a future architecture in which environmentally conscious design is paired with formal freedom and a radical rethinking of essential architectural elements.

"The wall and ceiling are no longer separate components but functionally merge into one another as an organic continuum.” Displayed as a showpiece for TU Dresden’s major project, backed by the German Federal Ministry of Education and Research, The Cube aims to explore the potential uses of carbon concrete in construction. 

"Carbon concrete could contribute to more flexible and resource-saving construction processes, and switching to carbon concrete could reduce the CO2 emissions from construction by up to 50%," Henn said in a statement. 

Bio-based carbon fibre under development to reduce carbon footprint

While carbon fibre may be lighter and stronger than steel, it has a much higher carbon footprint. Describing the material’s impact on the environment, Dr Erik Frank, Senior Carbon Scientist at the German Institute of Textile and Fibre Research Denkendorf (DITF), said it is “usually very bad.” To reduce the carbon footprint, Frank is finding ways to make carbon fibre out of lignin, a common plant-based substance found in the paper manufacturing industry. 



 

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