| 碱集料反应中当量碱问题探讨 |
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| 引用本文： | 胡明玉,雷斌,朱晓敏,晏育松,龙伏梅.碱集料反应中当量碱问题探讨[J].南昌大学学报(工科版),2004,26(3):82-85. |
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| 作者姓名： | 胡明玉 雷斌 朱晓敏 晏育松 龙伏梅 |
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| 作者单位： | 南昌大学,建筑工程学院,江西,南昌,330029 |
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| 摘 要： | 控制混凝土中的总碱量是预防碱集料反应的有效措施之一，而目前普遍采用当量碱公式来计算混凝土总碱量．本文根据试验得到的60组数据，运用回归方法拟合出线性回归方程．通过对所得线性回归方程的分析，得出当量碱计算公式Na2Onq=Na2O 0．658K2O中K2O的系数“0．658”偏大的结论，经初步分析认为该系数应为0．4左右．
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| 关 键 词： | 碱集料反应 当量碱 回归分析 混凝土 |
| 文章编号： | 1006-0456(2004)03-0082-04 |
| 修稿时间： | 2004年2月18日 |
A Research on the Sodium Equivalent in Alkali-Aggregate Reaction |
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| HU Ming-yu,LEI Bin,ZHU Xiao-min,YAN Yu-song,LONG Fu-mei.A Research on the Sodium Equivalent in Alkali-Aggregate Reaction[J].Journal of Nanchang University(Engineering & Technology Edition),2004,26(3):82-85. |
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| Authors: | HU Ming-yu LEI Bin ZHU Xiao-min YAN Yu-song LONG Fu-mei |
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| Abstract: | Control of the total alkali content,which is calculated by using the formula of sodium equivalent currently,is one of the effective measures to prevent concrete from damage by alkali-aggregate reaction.In this paper,sixty groups of sample data based on experiments are used and the lineal regression method is used to (analyze) the different effects of K_2O and Na_2O on AAR expansion,by which the coefficient of K_2O in the (formula) of sodium equivalent is estimated preliminarily.From the result,it can prove that the coefficient of K_2O in the formula of sodium equivalent,Na_2O_(eq)=Na_2O+0.658K_2O,is too large and it should be about 0.4. |
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| Keywords: | alkali-aggregate reaction sodium equivalent regression analysis concrete |
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