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| 粒度分布对超低水泥刚玉质浇注料流变性的影响 | |
| 引用本文： | 贾全利,叶方保,Rigaud M,钟香崇.粒度分布对超低水泥刚玉质浇注料流变性的影响[J].耐火材料,2004,38(3):168-171. |
| 作者姓名： | 贾全利 叶方保 Rigaud M 钟香崇 |
| 作者单位： | 1. 郑州大学高温功能材料河南省重点实验室,郑州,450052 2. 郑州大学高温功能材料河南省重点实验室,郑州,450052;CIREP,Ecole,Polytechnique,de,Montreal,Quebec,Canada 3. CIREP,Ecole,Polytechnique,de,Montreal,Quebec,Canada |
| 摘 要： | 用浇注料流变仪研究了粒度分布对超低水泥刚玉质浇注料流变性的影响。结果表明 :粒度分布对超低水泥浇注料的流变性影响较大。随着粒度分布系数 (q)的减小 (从 0 .2 9、0 .2 6到 0 .2 3) ,浇注料的剪切应力、粘度和屈服应力增加 ,需水量上升 ,说明流变性变差。以 2 %的SiO2 微粉等量替代q =0 .2 3的浇注料中的Al2 O3微粉后 ,试样的流变性得到明显改善 ,更适合用于泵送施工 :浇注料的需水量减少 ,自流值提高。 |
| 关 键 词： | 粒度分布 流变性 浇注料 刚玉质 超低水泥结合 |
| 修稿时间： | 2003年10月9日 |
Influence of particle size distribution on rheological properties of ultra-low cement alumina-based castables |
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| Jia Quanli,Ye Fangbao,Rigaud M,et al The Henan Province Key Laboratory of High Temperature Ceramics,Zhengzhou University,Zhengzhou ,China.Influence of particle size distribution on rheological properties of ultra-low cement alumina-based castables[J].Refractories,2004,38(3):168-171. | |
| Authors: | Jia Quanli Ye Fangbao Rigaud M The Henan Province Key Laboratory of High Temperature Ceramics Zhengzhou University Zhengzhou China |
| Affiliation: | Jia Quanli,Ye Fangbao,Rigaud M,et al The Henan Province Key Laboratory of High Temperature Ceramics,Zhengzhou University,Zhengzhou 450052,China |
| Abstract: | Influence of particle size distribution (PSD) on rheological behavior of ultra low cement alumina based castables was studied by using IBB rheometer V1.0. The results show that their rheological behavior is remarkably affected by PSD. With a decrease of q value, their shear stress, yield stress, plastic viscosity and water demand tend to increase, indicating degradation of rheological behavior. By adjusting microsilica content in the castable with q = 0.23, it is more suitable to pumping and wet shotcreting; the rheological properties are noticeably improved, exhibited by decrease in water demand and increase in self flow value. |
| Keywords: | Particle size distribution Rheological behavior Castables Corundum based Ultra-low cement bonded |
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