| 一种骨料碱活性检测新方法 |
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| 引用本文： | 尹芪,文梓芸.一种骨料碱活性检测新方法[J].华南理工大学学报(自然科学版),2003,31(11):37-40. |
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| 作者姓名： | 尹芪 文梓芸 |
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| 作者单位： | 华南理工大学,材料科学与工程学院,广东,广州,510640 |
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| 摘 要： | 提出一种新的骨料碱活性检测方法——溶胶-凝胶膨胀法，并用其对蛋白石和天然骨料的碱活性进行了研究，试验结果表明，利用溶胶-凝胶膨胀法，蛋白石表现出明显的碱活性，并且发现在蛋白石掺量为最劣点时的溶液中SiO2含量和SiO2／Na2O摩尔比都达到最值，膨胀量也达到最值。
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| 关 键 词： | Sol-gel膨胀法 蛋白石 碱骨料反应 骨料活性 |
A New Test Method for Aggregate Alkali Activity |
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| Abstract.A New Test Method for Aggregate Alkali Activity[J].Journal of South China University of Technology(Natural Science Edition),2003,31(11):37-40. |
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| Authors: | Abstract |
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| Abstract: | The application of a new test method for aggregate alkali activity,sol-gel expansion method,was presented,which was used to investigate the alkali activities of opal and natural aggregate. The experimental results show that by using the method,opal shows significant alkali activity,and at the pessimum proportion of opal,both SiO 2 content and SiO 2/Na 2O mole ratio in the reaction solution reach their maximum values,and so is the expansion. |
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| Keywords: | sol-gel expansion method opal alkali-aggregate reaction aggregate activity |
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