Experimental analysis of influence factors on pavement concrete performance: Different content of stone powder in manufactured sand

被引：7

作者：

Chen J. ^{[1
]}

机构：

[1] College of Transport and Municipal Engineering, Inner Mongolia Technical College of Construction, Hohhot

来源：

Chen, Jing (cjchenj@yeah.net) | 1600年 / John Wiley and Sons Inc卷 / 03期

关键词：

concrete performance; manufactured sand; stone powder content;

D O I：

10.1002/mdp2.213

中图分类号：

学科分类号：

摘要：

At present, due to the unclear understanding of the mixed proportion of stone powder in the manufactured sand, the quality of finished concrete is affected. In this study, the concrete was mixed with manufactured sand containing 0%, 5%, 10%, and 15% stone powder and poured into standard models. The compressive strength of the concrete was obtained by measuring the pressure; the dry shrinkage rate of the concrete was obtained by measuring the volume; the impermeability was evaluated by the seepage height method. The results demonstrated that the increase of stone powder content resulted in the enhancement of concrete compressive strength and impermeability, but blindly adding stone powder led to the deterioration of concrete anti-shrinkage performance. Finally, the comparison of the overall experimental data showed that 10% of stone powder could make all aspects of the performance of the concrete optimal. © 2020 John Wiley & Sons, Ltd.

引用

共 17 条

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