| ASRが生じた鉄筋コンクリート部材の物性確認試験と部材試験 | |
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| 光木史朗＊１・村角保行＊１・石井貴和＊２・高橋英雄＊１・竹﨑真一＊３ | |
| ASRがコンクリートの物性値（強度、弾性係数）に与える影響を調べるため、アルカリ添加と促進養生によりASRが発生した鉄筋コンクリート試験体を製作し、圧縮試験を実施した。また、ASRが部材の耐力等に与える影響を調べるため、梁試験体と壁試験体を製作し、曲げせん断加力試験を実施した。その結果、以下のことが分かった。 ・ASRによるコンクリートの伸び、弾性係数は、鉄筋による拘束の影響を受けた｡ ・ASRが発生した梁試験体、壁試験体の最大耐力が大幅に低減することはなかった。 |
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| キーワード： | アルカリ骨材反応，圧縮強度，弾性係数，耐力 |
| Study on the Influence of Alkali-silica Reaction on Structural Behavior of Reinforced Concrete Members | |
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| Shiro MITSUGI *1, Yasuyuki MURAZUMI *1, Takakazu ISHII *2, Hideo TAKAHASHI *1 and Shinichi TAKEZAKI *3 | |
| RC specimens, in which alkali was added, were
made and cured under accelerated condition of 40 degrees centigrade. Compressive
tests were carried out on them and ones without ASR to estimate the properties,
such as elastic modulus and strength, of the concrete with ASR. RC beam and shear wall specimens were also made in the same way with the above ones to be tested under bending shear load. They were made of either concrete with ASR or one without it. The results obtained showed - that rebar amount had effect on expansion by ASR, strength, and elastic modulus of the concrete, - and that the strength of the beam and wall specimens with ASR was approximately as high as ones without ASR. |
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| keywords: | alkali-silica reaction, compressive strength, elastic modulus, strength |
| ＊１ 原子力本部原子力設計部 ＊２ 建築本部技術部建築技術部 ＊３ 技術センター建築技術研究所建築構工法研究室 |
| 26- Report of Taisei Technology Center No.37 2004 |