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Cross-sectional analyses of circular and square reinforced concrete (RC) columns strengthened with reactive powder concrete jacketing and fibre-reinforced polymer (FRP) wrapping were undertaken. The stress block method was used to determine theoretical axial load-bending moment (AL-BM) interactions of the columns. These were then compared with experimental results and found to be in very good agreement. A parametric study was also undertaken to investigate the most important factors that influence the AL-BM capacity of circular and square strengthened columns. Finally, a group of theoretical A...

Recovery mission as of yet. >> reporter: there's always hope. yasmin, there's always hope. but as the hours progress and the hours become days that hope diminishes but never extinguished. there is hope. look. people know. people know that as time passes the odds get worse. but there's still a lot of hope here. >> jose, is there anything still standing there? >> reporter: here? very little. some structures. there's some structures, concrete structures. the church. the police station. an apartment block over there behind the debris that held. held. that's a -- it held because it's solid concrete...

Additive manufacturing, also referred to as 3D printing, is a technology that has gotten significant attention from researchers, manufacturers, and builders the world over for its ability to quickly and easily fabricate multi-dimensional objects.

With four of their five children having graduated from Imperial, alumnus Chris Bommer and his wife Aileen consider their family to have gained &ldquo...