TY - JOUR
T1 - Parametric study of functionally graded concretes incorporating steel fibres and recycled aggregates
AU - Chan, Ricardo
AU - Liu, Xingzi
AU - Galobardes, Isaac
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/5/10
Y1 - 2020/5/10
N2 - Even presenting several drawbacks, especially regarding environmental impact, concrete is the most consumed human-made material worldwide. In this sense, incorporating steel fibres and recycled aggregates, and applying the functionally graded material concept may help in the sustainability of concrete. In this paper, relationships between mechanical properties, embodied CO2, cost, among other parameters of functionally graded concretes (FGC) incorporating steel fibres and recycled aggregates were studied. The test results show that the FGC mechanical performance is inferior to fibre reinforced concrete but superior to fibre reinforced recycled aggregate concrete. Therefore, the FGC studied could be used in lower loading capacity applications, such as car parks and cycling lanes. In terms of embodied CO2 and cost, the FGC studied are more affected by the content of fibre than the content of recycled aggregates. Also, equations correlating design and sustainability parameters with reinforced thickness and content of fibre were proposed.
AB - Even presenting several drawbacks, especially regarding environmental impact, concrete is the most consumed human-made material worldwide. In this sense, incorporating steel fibres and recycled aggregates, and applying the functionally graded material concept may help in the sustainability of concrete. In this paper, relationships between mechanical properties, embodied CO2, cost, among other parameters of functionally graded concretes (FGC) incorporating steel fibres and recycled aggregates were studied. The test results show that the FGC mechanical performance is inferior to fibre reinforced concrete but superior to fibre reinforced recycled aggregate concrete. Therefore, the FGC studied could be used in lower loading capacity applications, such as car parks and cycling lanes. In terms of embodied CO2 and cost, the FGC studied are more affected by the content of fibre than the content of recycled aggregates. Also, equations correlating design and sustainability parameters with reinforced thickness and content of fibre were proposed.
KW - Correlation
KW - Fibre reinforced concrete
KW - Fibre reinforced recycled aggregate concrete
KW - Functionally graded concrete
KW - Parametric study
KW - Recycled aggregate concrete
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=85078200189&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2020.118186
DO - 10.1016/j.conbuildmat.2020.118186
M3 - Article
AN - SCOPUS:85078200189
SN - 0950-0618
VL - 242
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 118186
ER -