| 姚增远.矿渣碎石压碎值对混凝土抗压强度的影响[J].水泥工程,2020,33(6):86-89 |
| 矿渣碎石压碎值对混凝土抗压强度的影响 |
| Influence of blast-furnace slag strength (crush value) on compression strength of concrete |
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| 中文关键词: 压碎值 混凝土 耐压强度 |
| 英文关键词: crush value concrete compression strength |
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| 中文摘要: |
| 本文采用14%～24%不同压碎值的高钛型矿渣碎石作为试验对象，研究其在同等条件下对C30、C50和C70不同强度等级混凝土抗压强度的影响，结果表明：随着矿渣碎石压碎值逐渐增大，混凝土抗压强度均有下降趋势，当压碎值超过20%时，其抗压强度降低幅度增大；对于C30和C50强度等级的混凝土，当矿渣碎石压碎值达到24%时，其抗压强度仍能满足该强度等级要求，可以作为混凝土骨料使用；对于C70高强度等级的混凝土，当矿渣碎石压碎值大于20%时，其抗压强度已不满足该强度等级要求。 |
| 英文摘要: |
| In this paper, 14%~24% high titanium blast-furnace slag with different crush value is used as the test object to study its influence on the compression strength of C30, C50 and C70 concrete under the same conditions. The results show that: with the gradual increase of the crush value of blast-furnace slag, the compression strength of concrete has a downward trend, when the crush value is more than 20%, the reduction range of compression strength increases; for C30 and C50 When the crush value of blast-furnace slag reaches 24%,,the compression strength can still meet the requirements of the strength grade, and can be used as concrete aggregate; for C70 high strength concrete, when the crush value of blast-furnace slag is more than 20%, the compression strength can’t meet the requirements of the strength grade. |
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