再生混凝土骨料对混凝土渗透性的影响

SP-202: Third Canmet/ACI International Symposium: Sustainable Development of Cement and Concrete Pub Date : 2001-08-01 DOI:10.14359/10781

J. Gomez, L. Agulló, E. Vázquez

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引用次数: 6

摘要

本文介绍了用再生混凝土骨料(RCA)代替天然骨料的再生混凝土(RC)试验分析。本实验方案涵盖了所使用的骨料的规格，以及用它们制造的混凝土的规格。描述并讨论了RCA的使用对RC的渗透率产生的相当大的影响。试验表明，与参考混凝土相比，RC的渗透性有相当大的增加。水渗透深度和渗透系数的增加可能与RCA对天然团聚体的替代增加有关。这些增量归因于RCA的高孔隙率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Repercussionson Concrete Permeability Due to Recycled Concrete Aggregate

This paper presents an experimental analysis of recycled concrete (RC) in which the natural aggregates are replaced by recycled concrete aggregates (RCA). This experimental program covers the specifications of the aggregates employed, together with that of the concrete that is manufactured with them. The considerable effect on the permeability of RC that is produced by the use of RCA is described and discussed. Tests reveal considerable increase in permeability of RC in comparison with the reference concrete. Both the water penetration depths and the permeability coefficients are increased in a manner that may be correlated with the increase in the replacement of natural aggregates by RCA. These increments are attributed to the high porosity of RCA.

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SP-202: Third Canmet/ACI International Symposium: Sustainable Development of Cement and Concrete

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