乾湿繰返しを含む屋外の幅広い環境下におけるコンクリート中の水分移動過程

乾湿繰返しを含む屋外の幅広い環境下におけるコンクリート中の水分移動過程を再現可能な数値解析法と、移流、拡散、セメント硬化体への固定を考慮したコンクリート中の塩化物イオン移動解析法を組み合わせて、種々の条件下における曲げひび割れを有するかぶりコンクリート中における塩分移動に関する系統的な数値実験を行った。その結果に基づき、鋼材腐食発生限界時期に及ぼす各種要因、とりわけ曲げひび割れ幅の影響について検討した。土木学会示方書で採り入れられている曲げひび割れの影響の評価法の妥当性について論じた。

Kết quả (Anh) 1:

Cover with flexural cracks under various conditions, moisture transfer process in concrete under the wide range of environments including wet outdoor combination of numerical analysis that can reproduce and fixed to the advection, diffusion, and cement concrete in chloride ion movement analysis systematic numerical experiments on salt movement in concrete. Various factors of steel corrosion limits at the time, based on the results,Particularly flexural crack width were investigated. Civil society view people argued about the validity of the evaluation method of effect of bending cracks in the form adopted.

Kết quả (Anh) 2:

And reproducible numerical methods, advection, diffusion and moisture transfer process in concrete in a wide range of environments outdoor, including wet and dry repeatedly, by a combination of chloride ion movement analysis in the concrete structure by taking into account the fixed to the cured cement , was subjected to a systematic numerical experiments on salt movement in head and concrete have a crack in bending under a variety of conditions. Based on the results, the various factors affecting the steel corrosion generation limit time, it was investigated the effect of crack width and bending especially. Discussed the validity of the evaluation method of the effect of cracking and bending has been adopted by the Japan Society of Civil Engineers 示方 manual.

Kết quả (Anh) 3:

Which can reproduce the process of moisture transfer in concrete under drying-wetting cycles including a wide range of outdoor environment, advection, diffusion, numerical analysis method considering fixed to the hardened cement paste by combining the analysis of chloride ion in concrete transfer method, numerical experiments were performed on salt movement in the systematic in concrete under various conditions with bending cracks Based on the results, the effects of various factors on steel corrosion initiation timeEspecially the effect of flexural crack width is studied American Society of civil engineers in the specifications of the bending is introduced into the evaluation of the effect of the crack