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本文依次采用岩相法、化学法、砂浆长度法对新疆吉林台一级水电站进行了混凝土 AAR 碱骨料反应的活性试验,并进行了掺矿渣微粉、粉煤灰超细矿物掺合料的碱骨料反应试验。试验结果证明,新疆吉林台一级水电站采用岩相法得出的砂、石中碱活性可疑骨料都是非活性的;在混凝土中掺入一定量的矿渣微粉、粉煤灰等超细矿物掺合料,可更有效地判别 AAR 碱骨料反应。
In this paper, the activity test of concrete AAR alkali aggregate reaction was carried out on the Jilintai-Ⅰ Hydropower Station in Xinjiang by the facies of lithofacies, chemical method and mortar length, and the effects of alkali mixed with slag powder and fly ash ultrafine mineral admixture Aggregate reaction test. The test results show that the alkali-susceptivity suspicious aggregates of sand and stone obtained by the lithofacies-derived method are inhomogeneous in the Jilintai-1 hydropower station in Xinjiang. In the concrete, a certain amount of ultrafine mineral admixtures such as slag powder and fly ash are mixed Aggregate, can be more effectively distinguish AAR alkali aggregate reaction.