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| 水泥和骨料化学成分对碱骨料活性影响的试验研究 |
| Experimental Study on the Influence of Chemical Composition of Cement and Aggregate on the Activity of Alkali Aggregate |
| 投稿时间：2019-04-29 |
| DOI：10.16018/j.cnki.cn32-1650/n.201904001 |
| 中文关键词: 化学成分 碱骨料活性 快速砂浆棒法 膨胀率 |
| 英文关键词: chemical composition the activity of alkali aggregate accelerated mortar bar test expansion rate |
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| 中文摘要: |
| 试验采用5种不同的水泥、10种不同的骨料，通过快速砂浆棒法研究水泥和骨料的化学成分对碱骨料活性的影响。结果表明:当水泥化学成分不同，骨料化学成分相同时，各龄期的膨胀率与MgO质量分数成正比，与SiO2质量分数分数成反比；当骨料化学成分不同，水泥化学成分相同时，各龄期的膨胀率与骨料中碱质量分数、SiO2质量分数成正比，与MgO质量分数成反比。 |
| 英文摘要: |
| Five kinds of cement and 10 kinds of aggregate were used to study the influence of chemical composition of cement and aggregate on the activity of alkali aggregate by the accelerated mortar bar test. The results show that when the chemical composition of cement is different and the chemical composition of aggregate is the same, the expansion rate of each age is directly proportional to the MgO content and inversely proportional to the SiO2 content. When the chemical composition of aggregate is different and the chemical composition of cement is the same, the expansion rate of each age is directly proportional to the alkali content and SiO2 content of aggregate, and inversely proportional to the MgO content. |
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