Behavior of High-Strength Polypropylene Fiber-Reinforced Self-Compacting Concrete Exposed to High Temperatures
2018
Ríos Jiménez, José David | Cifuentes-Bulté, Héctor | Leiva Fernández, Carlos | García Arenas, Celia | Alba, María D. | Universidad de Sevilla. Departamento de Ingeniería Química y Ambiental | Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras | Universidad de Sevilla. TEP972: Mecánica de materiales y estructuras | Ministerio de Economía y Competitividad (España)
PDF extraído del repositorio del CSIC: https://digital.csic.es/handle/10261/173233
Show more [+] Less [-]The utilization of structural high-performance concrete reinforced with polypropylene fibers in applications demanding long exposure times to high temperatures, such as in case of thermal energy storage systems, is analyzed in this work. Different temperatures: 100, 300, 500 and 700°C (hot), as well as cooled-down states (cold) and different exposure times (6, 24 and 48 h) have been analyzed. The thermogravimetric analysis, fracture behavior, compressive strength, the Young’s modulus and tensile strength of concrete were also experimentally determined and subsequently, a comprehensive analysis of the thermal and mechanical behavior of highperformance concrete under different thermal conditions has been carried out, broadening with longer exposure times the available results about the behavior of high-performance fiber reinforced concrete subjected to high-temperatures. When the temperature is increased, the mechanical properties of this concrete diminishes. The results shown that once thermal and moisture equilibriums are reached there is no influence of the exposure time. They provide useful information about the influence of different parameters of fiber-reinforced concrete subjected to high temperatures.
Show more [+] Less [-]Ministerio de Economía y Competitividad (España) BIA2013-48352-P
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