| 粉煤灰、膨胀剂双掺技术对CRCP路面裂缝间距和宽度的影响 |
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| 引用本文： | 李九苏,刘朝晖.粉煤灰、膨胀剂双掺技术对CRCP路面裂缝间距和宽度的影响[J].现代交通技术,2006,3(2):4-5,18. |
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| 作者姓名： | 李九苏 刘朝晖 |
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| 作者单位： | 长沙理工大学公路工程学院,湖南,长沙,410076 |
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| 摘 要： | 粉煤灰、膨胀剂的掺入使混凝土干缩应变减小，抗弯弹性模量下降，从而可以适当增大连续配筋混凝土路面的裂缝间距并减小缝宽，在缝宽基本不变时，可以减少配筋量。本文研究了粉煤灰、膨胀剂双掺技术对连续配筋混凝土路面裂缝间距和宽度的影响。
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| 关 键 词： | 粉煤灰 膨胀剂 连续配筋混凝土路面 裂缝间距 裂缝宽度 |
| 文章编号： | 1672-9889（2006）02-0004-02 |
| 收稿时间： | 2005-11-04 |
| 修稿时间： | 2005-11-04 |
Effects of Addition of Fly Ash and Expansive Admixture on Spacing and Width of Crack of CRCP |
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| Li Jiusu,Liu Zhaohui.Effects of Addition of Fly Ash and Expansive Admixture on Spacing and Width of Crack of CRCP[J].Modern Transportation Technology,2006,3(2):4-5,18. |
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| Authors: | Li Jiusu Liu Zhaohui |
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| Abstract: | Effects of addition of fly ash and expansive admixture on properties of CRCP have been investigated.The combination of fly ash and expansive admixture contributes to minor dry shrinkage and small flexural elastic modulus,and thus increase crack spacing and reduce width of cracks.This paper analyzed the effects of addition of fly-ash and expansive admicture to the space and width of crack in CRCP. |
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| Keywords: | fly ash expanding agent continuous reinforced concrete pavement crack interval crack width |
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