| 嵌锁密实型水泥混凝土粗集料级配振动分析 |
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| 引用本文： | 田尔布,马.嵌锁密实型水泥混凝土粗集料级配振动分析[J].混凝土,2008(3):77-80. |
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| 作者姓名： | 田尔布 马 |
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| 作者单位： | 1. 长安大学,特殊地区公路工程教育部重点试验室,陕西,西安,710064
2. 陕西省铜川市公路管理局,陕西,铜川,727031 |
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| 摘 要： | 借鉴体积法思想和粒子干涉理论,以嵌锁骨架和密实填充为理念,通过粗集料的振动填充试验,分析了不同粒径集料之间的填充关系,确定了嵌锁密实型水泥混凝土粗集料级配的合理填充比例.研究得出,不同最大粒径的振动填充剩余孔隙率均随填充比例的增大而减小,存在2～3个明显的波谷.随着混料最大粒径的减小,剩余孔隙率减小,且变化曲线的起伏变化幅度降低,更容易趋于稳定.粗集料逐级振动填充的合理填充比例依次为40%、45%和35%.试验验证表明,利用合理填充比例,可以方便地计算确定嵌锁密实结构的粗集料级配组成.
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| 关 键 词： | 水泥混凝土 嵌锁密实 粗集料 振动试验 填充比例 |
Vibration analysis on coarse aggregate gradation of interlocking-dense cement concrete |
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| TIAN Er-bu,MA Biao,LU Xue-min,SHI Yan-qiang.Vibration analysis on coarse aggregate gradation of interlocking-dense cement concrete[J].Concrete,2008(3):77-80. |
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| Authors: | TIAN Er-bu MA Biao LU Xue-min SHI Yan-qiang |
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| Affiliation: | TIAN Er-bu1,MA Biao1,LU Xue-min2,SHI Yan-qiang2(1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang\'an University,Xi\'an 710064,China,2.Highway Bureau of Tongchuan of Shaanxi,Tongchuan 727031,China) |
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| Abstract: | Using the volume method and the particle interference theory for reference,the filling relationship between the different size aggregates was analyzed by the vibration-filling test with the idea of interlocking framework and dense filling.The rational filling proportion that the coarse aggregate forming the interlocking-dense structure was confirmed.It is pointed that the residual void ratio of different maximum size aggregate all decrease with increasing of the filling proportion,and there are 2 or 3 evide... |
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| Keywords: | cement concrete interlocking-dense coarse aggregate vibration test filling proportion |
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