featured material
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Eco-cement
- Main article: Eco-cement
Material performance
- Highly durable and strong building material.
- Not quite as strong as traditional Portland cement
Acoustic property
- Eco-Cement is a porous concrete, therefore it absorbs sound better than traditional cement.
Manufacturing process and assembly
- Eco-Cement is manufactured By Tec-eco by heating Magnesite (a compound of magnesium)in a kiln to around 600 to 750 degrees C (1100 - 1350 F). Approximately half the temperature reqired for portland cement.
- The lower firing temperature of the Tec-Kiln makes it easier to use free energy such as wind or solar or even waste energy.
- The heating process produces reactive magnesium oxide (magnesia).
- The reactive magnesia (powder) is added to a pre-determined, but variable amount of hydraulic cement such as Portland cement, and if desired, supplementary cementitious materials like fly ash. The resulting blended powder is Eco-Cement.
- When mixed with water and aggregates such as sand, gravel and wastes, Eco-Cement concretes are ready for pouring into concrete, pressing into blocks or other uses.
Environmental impact
- By replacing the calcium with magnesite, much lower furnace temperatures can be used, saving energy, plus Eco-Cement absorbs CO2 while setting, and for years after. Compared with Portland cement, it is more resistant to salt, acid and chlorine corrosion and at the end of its lifespan it is easier to recycle into new cement products.
- Eco-cements can also include up to 95% recycled industrial waste materials such as fly ash and blast furnace slag in their formulation.
- Eco-cements have a very low carbon emissions and tec-eco will soon begin to manufacture the product using carbon capture rather than fossil fuel, then product will actually be carbon negative. The fact that the concrete is so porous allows for more CO2 to be absorbed into the cement, creating a carbon sink.
more: Material Catalog
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featured building
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Ray and Maria Stata Center
- Main article: Ray and Maria Stata Center
Detail analysis
The café wall located in the southeast wing of the Stata Center is a prime example of Gehry’s use of material and joinery in a way that references Building 20’s past. The base of the café wall, consisting of a framed box with plywood facing, exposes the rough plywood edges along its border. These exposed edges are indicative of Gehry’s use of such a basic, exterior grade material. He allows the rough edges to remain bare and unfinished in a non-sophisticated, very simple manner. Glass panels stand tall in the aforementioned plywood boxes, supported by custom brackets secured to the wood framing of the base. The glass panels display a pixilated font floating the word “café,” visible to passersby, as the facility is open to the public.
more: Building Catalog
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