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Title

Behavior of High-Strength Polypropylene Fiber-Reinforced Self-Compacting Concrete Exposed to High Temperatures

AuthorsRíos, José; Cifuentes, Héctor; Leiva, Carlos; García, Celia; Alba, María D.
KeywordsHigh temperatures
Exposure time
Fracture behavior
Polypropylene fibers
High-strength concrete
Issue Date2018
PublisherAmerican Society of Civil Engineers
CitationJOURNAL OF MATERIALS IN CIVIL ENGINEERING 30: 040182711- 0401827113 (2018)
AbstractIn this study we analyzed the use of high-performance structural concrete reinforced with polypropylene fibers in applications requiring long exposure times to high temperatures, such as thermal energy storage systems. We analyzed the behavior of the concrete at different temperatures (hot tests: 100°C, 300°C, 500°C and 700°C), cooled-down states (cold tests) and exposure times (6, 24, and 48 h). We also experimentally determined the thermogravimetric analysis, fracture behavior, compressive strength, Young¿s modulus, and tensile strength of concrete. Subsequently, we performed a comprehensive analysis of the thermal and mechanical behavior of high-performance concrete under different thermal conditions. We applied longer exposure times to broaden the available results on the behavior of high-performance fiber-reinforced concrete when subjected to high temperatures. Results show that, once thermal and moisture equilibriums are reached, exposure time does not have any influence on mechanical properties. They also provide useful information about the influence of high temperatures on the different parameters of fiber-reinforced concrete and its application for thermal energy storage structures
URIhttp://hdl.handle.net/10261/173233
Identifiersdoi: 10.1061/(ASCE)MT.1943-5533.0002491
issn: 1943-5533
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