Hur påverkas det estetiska uttrycket vid användande av klimatförbättrad betong?

Sammanfattning

The world's population growth drives the need for new housing, infrastructure, and industries, with concrete being one of the most widely used building materials globally. However, today's concrete is not sustainable from a climate perspective, thus efforts are made to reduce the climate impact from the construction sector. The largest portion CO2 emission is generated from cement production and accounts for approximately 8% of global emissions. To reduce carbon dioxide emissions, development of alternative binders and techniques such as fossil-free transport and carbon storage is ongoing. Despite this, knowledge of how climate-improved concrete affects appearance is limited. This study examines the visual effects of climate-improved concrete with blast furnace slag as a binder on various facade techniques to contribute to sustainable construction. Through experiments with 12 different facade techniques, the results show that climate-improved concrete does not differ drastically in appearance compared to traditional concrete. The climate improved concrete has a lighter color tone and affects imprints during casting on different form materials. The conclusion is that climate-improved concrete has the potential to reduce climate impact without deteriorating visual properties compared to traditional concrete.