| 复合矿物材料对碱-硅酸反应的抑制效果 |
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| 引用本文： | 高培伟,卢小琳,闫亚楠,董波,李小燕.复合矿物材料对碱-硅酸反应的抑制效果[J].南京航空航天大学学报(英文版),2006,23(2):120-124. |
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| 作者姓名： | 高培伟 卢小琳 闫亚楠 董波 李小燕 |
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| 作者单位： | 南京航空航天大学航空宇航学院,南京,210016,中国 |
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| 摘 要： | 通过研究含有粉煤灰、沸石和矿渣的水泥胶砂试样因碱-硅酸反应所引起的膨胀和微观开裂特征表明：复合矿物材料（粉煤灰、沸石和矿渣）在低碱水泥和高活性集料中并不能完全消除水泥胶砂试样中的碱-硅酸反应，但减少了胶砂试样的膨胀率和膨胀破坏；且随着复合材料的增加，胶砂试样的膨胀率和膨胀破坏下降，微观结构得到改善。此外还研究了复合矿物材料对水泥胶砂流动性和强度的影响。
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| 关 键 词： | 复合矿物材料 膨胀与开裂 碱-硅酸反应 流动性 |
| 收稿时间： | 09 27 2005 12:00AM |
| 修稿时间： | 03 20 2006 12:00AM |
EFFECT OF COMPOSITE MINERAL ADMIXTURES ON RESTRAINING ALKALI-SILICA REACTION |
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| Gao Peiwei,Lu Xiaolin,Yan Yanan,Dong Bo,Li Xiaoyan.EFFECT OF COMPOSITE MINERAL ADMIXTURES ON RESTRAINING ALKALI-SILICA REACTION[J].Transactions of Nanjing University of Aeronautics & Astronautics,2006,23(2):120-124. |
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| Authors: | Gao Peiwei Lu Xiaolin Yan Yanan Dong Bo Li Xiaoyan |
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| Institution: | College of Aerospace Engineering, NUAA, 29 Yudao Street, Nanjing, 210016, P. R. China |
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| Abstract: | The expansion and micro-cracks of the mortar with composite mineral admixtures (fly ash, zeolite and slag) due to the alkali-silica reaction (ASR) are studied. Results show that composite mineral admixtures cannot absolutely diminish the ASR of mortar bars with the low-alkali cement and a highly reactive aggregate. But the expansion rate and the deleterious expansion of the mortar bar are mostly reduced with increasing composite mineral admixture. The influence of mineral admixtures on the fluidity of the paste and the strength of the mortar is also studied. |
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| Keywords: | composite mineral admixtures expansion and microcrack alkali-silica reaction fluidity |
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