immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Fussabdruck

  • Life cycle assessment calculator supports sustainable building

    Life cycle assessment calculator supports sustainable building

    The environmental product declarations (EPD) in accordance with SN EN 15804 make it possible to transparently present the ecological impact of a building material over its entire life cycle. This provides building owners with a sound basis for making decisions on sustainable construction that goes beyond individual environmental parameters and allows a comprehensive assessment.

    Baustoff Kreislauf Schweiz provides its members with independently verified average EPDs for various types of concrete and aggregates. This data forms a reliable basis for sustainable construction projects.

    Life cycle assessment calculator as a digital tool
    An industry-specific life cycle assessment calculator has been developed to calculate CO₂ emissions, energy consumption and other environmental indicators. This verified calculation tool offers the construction industry a practical way to determine and optimise environmental product declarations.

    The online tool at oekobilanz-rechner.ch enables an orientating analysis, but does not replace a complete EPD preparation. On request, the data entered can be further processed to create an officially verified environmental product declaration.

    Transparency and optimisation for the construction industry
    The life cycle assessment calculator provides the construction industry with a valuable tool for making sustainable material decisions based on data. By optimising the recording and evaluation of environmental impacts, the tool contributes to reducing the ecological footprint in the construction industry and supports a resource-conserving circular economy.

  • Empa researches clay as a sustainable building material

    Empa researches clay as a sustainable building material

    Clay releases significantly less CO2 than concrete, explains the Swiss Federal Laboratories for Materials Testing and Research(Empa) in a press release. Ellina Bernard from Empa’s Concrete & Asphalt Laboratory in Dübendorf and the Chair of Sustainable Construction at the Swiss Federal Institute of Technology Zurich is working to establish clay as a sustainable alternative to concrete. Their project is supported by the Swiss National Science Foundation(SNSF) with an Ambizione grant.

    Clay is found in different geological compositions all over the world. The sustainable building material could replace concrete in non-load-bearing structures as well as in load-bearing walls of residential buildings. For large-scale use, Bernard and her team want to define standards for composition and mechanical strength. On the other hand, additives must be found that increase the load-bearing capacity of the material. Conventional cement is currently still used here, but this pushes the ecological footprint of clay “back into the red zone”, Empa writes.

    Bernard, in collaboration with geologist Raphael Kuhn, has found a promising approach in magnesium oxide. In initial laboratory experiments with clay formulations, a compressive strength of up to 15 megapascals was achieved, Empa informs. Clay with added cement achieves up to 20 megapascals.

  • Morand Constructions Métalliques builds its first decarbonized steel structure

    Morand Constructions Métalliques builds its first decarbonized steel structure

    The metal construction company Morand Constructions Métalliques based in Enney has built Switzerland's first supporting structure made of decarbonized steel for the newDIMAB car dealership in Rossens. At 333 kilograms of CO2 per tonne, decarbonized steel releases seven times less carbon dioxide, according to a statement from Stahlbau Zentrum Schweiz ( SZS ). Classic steel from the steel mill causes 2300 kilograms of carbon dioxide per ton.

    According to the information, the ecologically sustainable steel beams were produced in an electric arc furnace from scrap steel and with 100 percent renewable electricity. At 600 kilograms of CO2 per tonne, the recycling of steel also releases comparatively few greenhouse gases and has been common practice for more than 100 years. If electricity from 100 percent renewable energy sources is also used during production, "the environmental impact of decarbonized steel is almost halved – and at a small additional price of 2 to 4 percent," it says.

  • Lidl halves footprint

    Lidl halves footprint

    Lidl has exceeded a self-imposed environmental target. By 2020, the company wanted to reduce its relative CO2 emissions by 35 percent compared to 2013, Lidl Switzerland explains in a press release . Ultimately, however, the CO2 emissions were reduced by 53 percent. Lidl emphasizes a change in its own transport area as a particularly effective measure. Here, the company plans to only use trucks powered by bio-liquefied petroleum gas by 2030.

    Lidl Switzerland has introduced a CO2 management system in which the company’s annual CO2 emissions are recorded, the communication further explains. Building on this, the company derives measures to reduce emissions. The remaining emissions are offset.

    This is the fifth time that Lidl Switzerland has met the conditions for certification with the Swiss Climate Label CO2-neutral, according to the announcement. According to her, Lidl Switzerland is the first company of its kind in Switzerland whose branches and goods distribution centers are all certified according to the ISO 50001 energy efficiency standard.