Residual mechanical properties of calcareous and granite aggregate concretes after fire
作者： Cristina Calmeiro dos Santos , João Paulo C. Rodrigues
关键词: Properties of concrete 、 Aggregate (composite) 、 Young's modulus 、 Ultimate tensile strength 、 Residual 、 Compressive strength 、 Materials science 、 Calcareous 、 Flexural strength 、 Geotechnical engineering
摘要: The residual mechanical properties of concrete after a fire depend on the high temperatures to which material was subjected and nature extinguishing process used. Knowledge these is utmost importance in an evaluation load-bearing capacity reinforced elements their repair fire. This paper presents results assessment ordinary Concretes comprising granite calcareous aggregates were studied as they are commonly used around world civil engineering construction. study considered different loading levels (0·3fcd 0·7fcd), cooling processes (cooling air by water jet) varying maximum exposure (20, 300, 500 700°C). concretes (residual compressive strength, direct splitting tensile flexural strengths modulus elasticity) being temp...
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