Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Characterization of sub-zero response of vinylester FRP in civil infrastructure renewal
FRP composites fabricated using ambient cure processes such as wet layup and resin infusion are increasingly being considered for use in applications such as column retrofit, beam and slab strengthening, and replacement structural components such as bridges decks. The use of these processes in conjunction with resin systems such as vinylesters can result in incomplete polymerization leading to the potential for significant changes in materials response over time in the presence of hygro-thermal conditions. This paper reports on the results of ashort-term (100 days) characterization program of E-glass and carbon/vinylester composites subjected to freeze and freeze-thaw conditions. Characterization through gravimetric measurements, tensile, compressive and split-D tests and dynamic mechanical thermal analysis show differing levels of degradation based on a combination of moisture induced hydrolysis and plasticization and thermal induced embrittlement and microcracking.
Characterization of sub-zero response of vinylester FRP in civil infrastructure renewal
FRP composites fabricated using ambient cure processes such as wet layup and resin infusion are increasingly being considered for use in applications such as column retrofit, beam and slab strengthening, and replacement structural components such as bridges decks. The use of these processes in conjunction with resin systems such as vinylesters can result in incomplete polymerization leading to the potential for significant changes in materials response over time in the presence of hygro-thermal conditions. This paper reports on the results of ashort-term (100 days) characterization program of E-glass and carbon/vinylester composites subjected to freeze and freeze-thaw conditions. Characterization through gravimetric measurements, tensile, compressive and split-D tests and dynamic mechanical thermal analysis show differing levels of degradation based on a combination of moisture induced hydrolysis and plasticization and thermal induced embrittlement and microcracking.
Characterization of sub-zero response of vinylester FRP in civil infrastructure renewal
Rivera, J. (Autor:in) / Karbhari, V.M. (Autor:in)
2001
7 Seiten, 9 Quellen
Aufsatz (Konferenz)
Englisch
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