| 石粉在低标号自密实混凝土中的应用 |
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| 引用本文： | 王超.石粉在低标号自密实混凝土中的应用[J].彭城职业大学学报,2012(4):80-84. |
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| 作者姓名： | 王超 |
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| 作者单位： | 湖北第二师范学院建筑材料与工程系,武汉430205 |
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| 摘 要： | 在配制低标号自密实混凝土时，往往掺加大量的粉煤灰．粉煤灰在低标号自密实混凝土中有：替代部分水泥、节省混凝土成本、降低混凝土水化热、体积变化小、增强混凝土抗裂等作用．微细颗粒的石灰石粉具有早期活性，可以作为辅助胶凝材料，部分或全部代替粉煤灰用于混凝土，不仅能够大幅降低混凝土成本，而且可以保证混凝土的其它性能．
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| 关 键 词： | 石粉 低标号 自密实混凝土 |
On the Application of Stone Dust in Low-Grade and Self-Compacting Concrete |
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| WANG Chao.On the Application of Stone Dust in Low-Grade and Self-Compacting Concrete[J].Journal of Pengcheng Vocational University,2012(4):80-84. |
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| Authors: | WANG Chao |
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| Institution: | WANG Chao (Department of Building Materials and Engineering, Hubei University of Education, Wuhan 430205, China) |
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| Abstract: | Much flyash is often added in the preparation of low-grade and self-compacting concrete, playing three kinds of role： replacing a part of cement and thus saving the concrete costs; reducing the hy- dration heat of concrete thus decreasing the volume change and enhancing the anti-cracking action of con- crete. Superfine particles of limestone has early activity, so it can be used as supplementary cementitious material and can replace a part of or all of flyash used in the concrete. This can not only significantly re- duce the concrete costs, but can ensure the other properties of concrete as well. |
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| Keywords: | stone dust low-grade self-compacting concrete |
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