高靱性セメント系複合材料の擬似ひずみ硬化性引張挙動に及ぼす影響因子に関する実験的研究

概要

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High Performance Fiber Reinforced Cementitious Composite (HPFRCC) shows Pseudo Strain Hardening Behavior (PSH behavior) under tension stress, which is the most remarkable characteristics of HPFRCC. In this Paper, the fiber types, fiber volume fraction, fiber length and matrix water/cement ratio are focused on as factors influence to the PSH behavior. The degree of the impact of each factor is tested including the relevance with its workability. The influence of the cyclic loading history on PSH behavior is also tested assuming the application to the structural elements under the seismic force. Based on the test results, appropriate fiber volume fraction, fiber length and water/cement ratio to each fiber type are proposed, considering the relevance between mechanical characteristics and workability. In case when HPFRCC is under the tension-compression cyclic loading history, the PSH behavior shows the same characteristics as that under the monotonic tension in one direction.
社団法人日本建築学会の論文
2006-07-30