Post-Fire Residual Mechanical Properties of High Strength Concrete (HSC) Made with Basalt Aggregate

Abstract

This paper addresses an investigation of the residual mechanical properties of high strength concrete produced with coarse basalt, limestone and granite aggregate and exposed to temperatures of 200ºC, 400ºC and 600ºC. The paper objectives are: comparatively analyze test results with data from standards and results from other authors, evidencing the influence of coarse aggregate in the material performance; and provide reduction coefficients of mechanical properties of concrete containing basalt aggregate exposed to high temperatures, which is used in many countries and have notable thermal properties, but is not addressed by the structural fire design standards