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用“中国压蒸快速法”和“南非法”对混凝土骨料进行了碱活性检验 ,检验结果证明 ,针对骨料具有碱活性 ,且主要活性成分为活性二氧化硅 ,进行了掺用粉煤灰的方法进行抑制的研究 ,研究结果表明 ,尽管用重庆华能的粉煤灰 ,任一掺量均有抑制效果 ,但掺量大于或等于 30 %时 ,才是安全有效的掺量。
The tests of alkali activity of concrete aggregates were carried out with “China Rapid Pressure Steam Evaporation Method” and “South African Law”. The test results show that the activity of the aggregate is alkaline and the main active component is activated silica. Gray method, the results show that although the use of Chongqing Huaneng fly ash, either content have inhibitory effect, but the content is greater than or equal to 30%, is safe and effective dosage.