Concrete is a natural and environmentally-friendly building material in view of the overall life cycle. Concrete structures last for decades in use, and their actual technical service life easily exceeds 100 years.
Concrete structures are very tight, which helps to save both cooling and heating energy. They have good soundproofing properties and do not emit any gases indoors. Concrete also does not produce radiation, burn, grow mildew or add to the fire load of a building. It will last safely for centuries, making it a natural choice for builders.
The utilization of concrete is good even after the initial use. Many products, such as tiles, pillars or precast elements, can be reused as such. Precast concrete elements, as well as the surplus concrete produced in the manufacture, can be crushed.
Recycled, crushed concrete is an excellent landscaping material, as it binds to itself harder than natural gravel under the influence of moisture. Crushed concrete can be used to replace more than a third of the virgin aggregate amount.
Finland produces about 15 million tonnes of concrete annually — about 15% of all aggregates. Currently, about 80% of it can be reused in different ways.
Carbonization binds carbon dioxide into concrete
The ingredients of concrete – water, cement and stone - can be found almost anywhere, making concrete easy to produce where it is needed. And while the manufacturing process does release carbon dioxide, concrete structures begin to carbonize or bind CO2 almost immediately upon the start of use of the completed building or structure.
All in all, a concrete house binds about a quarter of the carbon dioxide released in the production of concrete during its service life. When concrete is crushed, carbonization is accelerated even more. Overall, crushed concrete binds 40% to 50% of the carbon dioxide released in its production, and as landscape and road construction material even 66%.
Watch the video on carbonization
ASV Oy is an ecological concrete manufacturer
The production of ASV is as environmentally friendly as possible. Modern manufacturing methods and processes have reduced the energy demand for concrete production by more than 30% over the last decades. The hydration heat, generated by the hardening process in the precast-concrete-element production, is utilized. The rest of the necessary heat is produced at Ansio's own thermal-power plant.
The wash water in concrete mills and trucks is also recycled and reused in ready-to-use concrete production. In addition, the excess mineral wool from insulated precast elements is collected and sent for re-use.
Environmental Goals of the Concrete Industry
- Use of Environmental Management Systems
- Updated Environmental Programs for Production Plants
- Efficient use of Raw Materials
- Energy Savings in Buildings and Processes
- Promotion of Recycling
- Ensuring Occupational Safety of all Personnel