粉煤灰抑制碱骨料反应研究

采用优质Ⅰ级粉煤灰对碱骨料反应进行抑制效果的研究，结果表明，用娄煤在抑制碱骨料反应，其掺量因素大于品质因素对抑制效果的影响；通过不同碱浓度溶液中粉煤灰中碱的溶出情况，探讨了在混凝土孔溶液碱浓度下，粉煤灰中碱的溶出情况以及用高碳含量粉煤灰抑制碱骨料反应时，低掺量促进膨胀，高掺量抑制膨胀现象的机理。

The Research of Controlling AAR with Fly Ash

The results of the research on controlling AAR with high quality grade I fly ash reveal that the quantity of fly ash added produces more effect on controlling AAR than its quality. By analyzing the dissolving-out condition of alkali contained in fly ash in the solutions with different concentrations of alkali, the authors make an approach to the dissolving-out condition of alkali contained in fly ash at the alkali concentration of solution in concrete pores. The authors also approach such a phenomenon that the low content of fly ash helps swelling, while the high one controls swelling when the fly ash with high content of alkali is used to control alkali-aggregate reaction