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碱-集料反应
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碱-集料反应
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工学
混凝土耐久性
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alkali-aggregate reaction
碱-集料反应
混凝土孔溶液中的碱与集料(又称骨料)中的某些活性组分发生化学反应,并导致混凝土异常膨胀的现象。简称AAR。AAR已在世界范围内造成了许多桥梁、大坝、道面、码头、隧道、工业和民用建筑等开裂破坏。
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