Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
258253 | Construction and Building Materials | 2013 | 8 Pages |
The environmental performances of concrete structures have been largely investigated in the last years. However, mechanical behavior and ecological aspects are not always combined in these analyses. Thus, two low-carbon footprint self-consolidating concretes have been subjected to uniaxial compression loads, in order to measure the strength and the dissipated energy during failure. Starting from these tests, new eco-mechanical ratios are herein introduced with the aim of tailoring eco-friendly concrete with acceptable mechanical performances. As a result, the best structural and environmental performances can be achieved not only by replacing cement with mineral admixtures, but also adding steel fibers.
► To measure the eco-mechanical performances of concrete, new indexes are introduced. ► Compressive behaviour defines the mechanical properties of concrete. ► CO2 released by cement and fibers production is evaluated. ► Two self-consolidating mixtures, with and without fibers, are investigated. ► In the best SCC, cement is replaced by FA and SF and steel fibers are added.