| 石灰粉煤灰碎石配合比逐级选择设计法 |
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| 引用本文： | 周战武.石灰粉煤灰碎石配合比逐级选择设计法[J].交通标准化,2011(22):73-76. |
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| 作者姓名： | 周战武 |
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| 作者单位： | 西安市政道桥建设有限公司,陕西西安,710003 |
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| 摘 要： | 为了设计符合路面基层使用要求的石灰粉煤灰碎石配合比,根据配合比设计的基本思路,将集料按照出场规格划分为若干档,通过由粗至细逐级填充的办法调整不同粒级集料用量,采用表面振动压实的方法得到材料用量与振实密度的关系曲线并比较确定集料级配结构,进而在不同的级配结构中加入石灰粉煤灰结合料,通过7d无侧限抗压强度试验结果比较,选择出符合设计要求且便于生产质量控制的配合比,结合骨架密实型石灰粉煤灰碎石的配合比设计实例提出逐级选择的配合比设计方法。
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| 关 键 词： | 石灰 粉煤灰 碎石 配合比 设计方法 |
Mix Proportion Design of Lime-Fly Ash Concrete with Stage-By-Stage Selecting |
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| ZHOU Zhan-wu.Mix Proportion Design of Lime-Fly Ash Concrete with Stage-By-Stage Selecting[J].Communications Standardization,2011(22):73-76. |
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| Authors: | ZHOU Zhan-wu |
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| Institution: | ZHOU Zhan-wu(Xi′an Municipal Road ＆ Bridge Construction Co.,Ltd.,Xi′an 710003,China) |
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| Abstract: | In order to design mix proportion which conforms to the requirements of road base using lime,fly ash and macadam.According to the basic conception of mix proportion design,the aggregate are divided into different levels based on their field specification.By adjusting the amount of the different size fraction in lime-fly ash concrete,the connection curve of material amount and compaction density is obtained using surface vibrating compaction method,then the aggregate gradation is confirmed.Adding lime-fly as... |
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| Keywords: | lime fly ash macadam mix proportion design method |
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