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Regenerative Salt Landscapes: An ArchDaily Student Project Awards Winner Rethinking Extraction in Argentina

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When people think of Argentina, they often picture landmarks like the Obelisk of Buenos Aires. Yet the country spans over 2,780,400 km², making it one of the largest in South America and home to a wide range of landscapes and realities that frequently go unnoticed. In fact, the province of Jujuy in northern Argentina lies within the Lithium Triangle: a high-altitude region shared with Bolivia and Chile that contains roughly 54% of the world's lithium reserves. Within this territory sits the Olaroz Salt Flat, a site where today two competing dynamics converge: the expansion of industrial lithium extraction and the preservation of ancestral culture and lands inhabited by Kolla and Atacama communities, creating a clash of high-capacity industrial extraction and traditional, low-impact agrarian practices.

In light of this problem, one of the winning teams of the ArchDaily Student Project Awards, made up of Ezequiel Lopez, Maria Victoria Echegaray, and Agustina Durandez, decided to look into the issue. This was done as part of their thesis project for the Bachelor's in Architecture program at the National University of Córdoba. Their work stems from an interest in engaging with territories that remain peripheral to architectural discourse, using the thesis as an opportunity for sustained, in-depth research. This allowed them to formulate informed design responses grounded in both territorial and socio-economic realities. Rejecting the binary between extraction and preservation, the project approaches the territory as a system where both can coexist through spatial and technical mediation.

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Delving into the Aesthetics of Rock Salt Crystallization

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Rock salt is a chemical sedimentary rock that forms through the evaporation of water, as minerals dissolve and settle down. When excavated directly from the earth, it maintains a cube-shaped crystalline form. With its diverse textures, compositions and structures, this natural element has captivated human interest for centuries. Depending on the region and environmental conditions, salt rock has been found in diverse applications in architecture, such as a construction material that uses blocks of salt to build structures, bricks, or tiles. Often translucent, these bricks allow diffused light to enter interior spaces, creating a unique atmosphere and aesthetic appeal.

Giving this ancient material a modern twist, Casalgrande Padana uses rock salt as the inspiration for its new Supreme porcelain stoneware tile collection. By replicating the colors, texture and brightness of natural sedimentary rock, this collection can be seen as a fascinating journey to discover the unique features of the center of the Earth.

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Could Salt Be a Material of the Future? Innovating with Crystallized Salt Panels

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Sodium chloride, most commonly known as salt, is everywhere. Ancient in its uses and abundant in nature, it preserves local ecosystems, de-ices roads, is vital in a variety of industrial processes, and is likely sitting on your kitchen table as a seasoning for your meals. Today, it is attributed relatively little value –considering it used to be as worthy as gold–, and unlike other nature-derived alternatives such as algae or mycelium, there doesn’t seem to be enough research and interest around all of its physical, mechanical or aesthetic properties. And yet it is a material with infinite, extraordinary potential. Apart from its life-supporting qualities, salt is affordable, easily available, antibacterial, resistant to fire, can store humidity and heat, and is great at reflecting and diffusing light.

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Police Station in Salt / Josep Ferrando Architecture + Sergi Serrat

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Elderly Healthcare Building / Brullet Pineda Arquitectes

Elderly Healthcare Building / Brullet Pineda Arquitectes - Healthcare
Courtesy of Pinearq

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CAP Salt 2 / BAAS

CAP Salt 2 / BAAS - Public ArchitectureCAP Salt 2 / BAAS - Public ArchitectureCAP Salt 2 / BAAS - Public ArchitectureCAP Salt 2 / BAAS - Public ArchitectureCAP Salt 2 / BAAS - More Images+ 6