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Title |
Behaviors of Concrete Segmented Composites Using Polymer Mortar Under Static and Impact Loadings
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Keywords |
충격하중 ; 콘크리트 분절 복합체 ; 폴리머 모르타르 ; 유한요소해석 ; 불연속 균열 모델 Impact loading ; Concrete segmented composite ; Polymer mortar ; Finite element analysis ; Discrete crack model |
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Abstract |
In this study, an impact resistance of concrete segmented composites adopted shell’s structures which have the excellent impact resistance was assessed. In order to enhance the performances of concrete segmented composite, the bond strength of mortar between the concrete blocks should be improved. Hence, in this study polymer mortars were applied to increase the bond strength of mortar. From the results of bond tests, the 15% latex mortar was selected and static and low-velocity impact tests were carried out for the specimens applied the plain and latex mortar. The concrete segmented composites, of which the bond strength of mortar was enhanced, showed improved low-velocity impact resistances. A Nonlinear finite element analysis using the discrete crack model showed similar energy dissipating capacities to the impact test’s results. Consequently, by improving the analysis models for segmented composites, the impact resistances for manifold variables can be predicted and assessed.
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