Twenty-four rectangular RC column specimens, constructed at 1/3 scale, were tested under axial loading to investigate the use of ASWM (one, two, three, four, and five layers) exposed elevated temperatures. Six specimens subjected laboratory temperature (control or un-damaged specimens) 23oC. Eighteen temperatures (six columns 250oC, six 500oC, 750oC) for 2 hr. The obtained results clearly showe...

In this paper, the results of an application global and local optimization methods to solve a problem determination strains in RC compressed structure members are presented. Solutions appropriate sets nonlinear equations presence box constraints have be found. The use least squares method leads finding solutions problems with constraints. Numerical examples illustrate effects loading value ecce...

Abstract This study aims to evaluate the effect of cross-section modification on performance square reinforced concrete (SRC) columns discontinuously strengthened with CFRP bands. In line this research aim, SRC under eccentric and concentric compression was compared that circularized RC (CSRC) columns. Six 800 mm height including three 150 side length CSRC 212 diameter were prepared tested. The...

Producing limestone powder requires comparably far less energy than the production of ordinary Portland cement (OPC), making it a promising sustainable solution for partial replacement OPC in concrete. Lower could be translated into lower environmental impact and cost, which are two pillars sustainability resulting However, question remains if replacing with larger percentages would compromise ...