第14回
ASRポテンシャル評価のための骨材試験方法に関する評価
著者:
江藤 淳二,Junji ETOH,落合 孝正,Takamasa OCHIAI,小川 彰一,Shoiti OGAWA,渋谷 和俊,Shibuya KAZUTOSHI,丸山 一平,Ippei MARUYAMA,山田 一夫,Kazuo YAMADA,滝沢 真之,Masayuki TAKIZAWA
発刊日:
公開日:
キーワードタグ:
Test method has not been maintained for late-expansive aggregates (which cause cracks in concrete after 10 years or more), in addition to the early-expansive aggregates which have been considered as the major cause of ASR in Japan. In order to confirm the effectiveness of the aggregate test method of JNES flow (the method mainly composed of international methods RILEM AAR - 3 and AAR - 4) and to prepare applicable aggregate test method, we conducted comparative tests using domestic and foreign aggregate...
英字タイトル:
Evaluation on Aggregate Testing Method for ASR Potential Evaluation
第12回
超高純度ステンレス鋼(EHP 合金)の環境適用性評価
著者:
江藤 淳二,Junji ETOH,芦田 高規,Takaki ASHIDA,落合 孝正,Takamasa OCHIAI,木内 清,Kiyoshi KIUCHI,滝沢 真之,Masayuki TAKIZAWA,中山 準平,Junpei NAKAYAMA
発刊日:
公開日:
キーワードタグ:
An elemental factor on the crack propagation mechanism of SCC observed in LWRs component materials made of non-sensitization stainless steels is examined with respect to the local steam corrosion in cracks by atomic oxygen formed at the wall surface under the irradiation of γray. The excellent oxidation resistance of type 25Cr-35Ni EHP steel with forming the protective double layer oxides is observed up to 600℃. On the other hand, the oxidation of type 316L steel with non-protective single oxide is acc...
英字タイトル:
Environmental compatibility evaluation of extra high purity stainless steel (EHP alloy)