| 固化土结构的形成模型 |
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| 引用本文： | 黄新,宁建国,许晟,兰明章. 固化土结构的形成模型[J]. 工业建筑, 2006, 36(7): 1-6 |
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| 作者姓名： | 黄新 宁建国 许晟 兰明章 |
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| 作者单位： | 北京航空航天大学,土木工程系,北京,100083;北京工业大学,材料学院,北京,100022 |
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| 摘 要： | 通过理论分析和试验验证,提出了一个固化土结构的形成模型。该模型认为:粉土固化土结构是由固化剂水化物充分包裹胶结土颗粒和填充土颗粒间孔隙而构成;黏性土固化土结构是通过固化剂水化物包裹胶结土团粒、填充土团粒间孔隙、挤压填充土团粒内孔隙而构成。该模型可以较好地反映固化剂掺量和种类与固化土强度增长规律间的关系。该模型指出,对于不同土质类型,固化剂可能产生的水化物种类,对固化剂优化设计具有指导作用。
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| 关 键 词： | 固化土 结构形成模型 胶结 填充孔隙 膨胀 |
| 收稿时间： | 2006-02-25 |
| 修稿时间： | 2006-02-25 |
STRUCTURE FORMATION MODEL OF STABILIZED SOIL |
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| Huang Xin,Ning Jianguo,Xu Sheng,Lan Mingzhang. STRUCTURE FORMATION MODEL OF STABILIZED SOIL[J]. Industrial Construction, 2006, 36(7): 1-6 |
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| Authors: | Huang Xin Ning Jianguo Xu Sheng Lan Mingzhang |
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| Affiliation: | Department of Civil Engineering, Beihang University Beijing 100083;School of Materials, Beijing University of Technology Beijing 100022 |
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| Abstract: | Based on theoretical analysis and experimental research,a structure formation model of stabilized soil is verified.The model shows that: 1) structure of the stabilized soil from silt is formed by hydrates,which are generated by hardening agent hydration,wrapping and cementing soil particles and filling pores among the particles;2) structure of the stabilized soil formed from clayey soil is formed by the hydrates wrapping and cementing clay particle groups,filling pores among the groups,and squeezing and filling pores in the groups.By the model,the relationship between dosage and varieties of hardening agent and the strength increasing law of stabilized soil can be interpreted reasonably.The model revealed that different kinds of hydrates should be generated by hardening agent for different kind of soil,which is of important guiding significance for optimization design of hardening agent. |
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| Keywords: | stabilized soil structure formation model cementing pore filling expansion |
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