کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
258253 | 503615 | 2013 | 8 صفحه PDF | دانلود رایگان |
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.
Journal: Construction and Building Materials - Volume 40, March 2013, Pages 189–196