Soundblox Carbstone absorbs sound and CO2
Soundblox acoustic concrete blocks, known for effectively combating noise pollution, are now also proving to be a powerful weapon in the fight against CO2 emissions. Thanks to new technology, these structural elements, which combine both sound insulation and fire resistance, are actively contributing to the climate transition. An important development, since concrete is responsible for 10 percent of all CO2 emissions worldwide. This innovation brings closer the goal of “cement-free” construction, without compromising on aesthetics.
Robust acoustics
Because of their robustness, Soundblox acoustic concrete blocks have been used for years in rooms with high walls and ceilings such as sports halls and gymnasiums, as well as in reception halls, school classrooms, hallways, auditoriums, houses of worship, theaters, libraries, factories, facades, offices, conference rooms and hangars. In addition, they are used in outdoor applications, along highways, at train stations and under overpasses, and have often been used in nuclear power plants in the past.
Especially in spaces where not only room acoustics are an additional challenge, but also special requirements for materials due to high humidity levels or other extreme conditions such as chlorine fumes, Soundblox can be the solution for acoustic climate control. For example, the room acoustics in the d’Outre Meuse swimming pool in Belgium were brought up to standard with Soundblox, with these acoustic building blocks providing a decorative addition to the interior.
Circular, cement-free and CO2-negative
However, Soundblox acoustic blocks are now also available in a more durable, carbonized variant. Hardly distinguishable from traditional concrete, this new acoustic Carbstone has virtually the same properties, but without the ecological drawbacks. In fact, these blocks are manufactured with CO2 that is specially extracted from the air and used in production, making cement completely unnecessary.
These blocks therefore absorb not only sound, but also CO2, thus intrinsically contributing to the fight against climate change. In addition, after installation (in the open air), they continue to absorb CO2 and become harder and harder, also further increasing their load-bearing capacity. Although Soundblox are still available in concrete, Soundless Acoustics wants to use this technology to actively contribute to the climate transition where cementless production will eventually become the norm.
Source: constructionproducts.com, April 10, 2025