The objective of this study was to demonstrate the possibility to obtain concretes in Cuba with values of effective porosity below of 10%, using limestone aggregates with high levels of absorption (higher than 1% in many cases), and values of Sorptivity below of 5 x 10-5 m/s1/2 as is established in the document prepared by the DURAR Latin Working Group, for structures exposed to very aggressive environments. The experimental results showed that the use of the trial method of capillary absorption of G?ran Fagerlund, were obtained concretes with effective porosity below of the 10%, for water/cement ratios of 0.4 and 0.45, but the values of sorptivities were very high. Nevertheless the subsequent use of the trial method of the ASTM C1585, that use cylinders probes with bigger depth and different processing, permits to obtain the desired sorptivity values for water/cement ratios of 0.4 and 0.45 whenever would be fulfilled the Good Practices of the Construction.
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机译：这项研究的目的是证明在古巴使用具有高吸收水平（在许多情况下高于1％）的石灰石骨料获得有效孔隙率低于10％的混凝土的可能性。 x DURAR拉丁工作组准备的文件中规定的10-5 m / s1 / 2，用于暴露于非常恶劣的环境中的结构。实验结果表明，采用G？ran Fagerlund的毛细吸收试验方法，获得了有效孔隙率低于10％，水灰比为0.4和0.45的混凝土，但吸水率值非常高。尽管如此，随后使用ASTM C1585的试验方法（使用具有更大深度和不同处理方式的圆柱探针），只要满足施工的良好实践，就可以获得水/水泥比为0.4和0.45的理想吸附值。 。
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