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首页> 外文期刊>Arabian Journal for Science and Engineering >The Effect of Curing Conditions on Permeation of Self-Compacting Lightweight Concrete with Basaltic Pumice Aggregate
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The Effect of Curing Conditions on Permeation of Self-Compacting Lightweight Concrete with Basaltic Pumice Aggregate

机译：养护条件对玄武岩浮石骨料自密实混凝土渗透性能的影响

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摘要

This paper introduces an experimental research about the influences of the curing type on accelerated carbonation, capillary water absorption and permeability of a range of different self-compacting lightweight concrete (SCLC) mixtures in comparison with those of chosen conventional vibrated lightweight concrete (LC) and self-compacting concrete (SCC). Seven different concrete compositions are considered: four SCLC, two SCC and one LC mixtures. All of the SCLC mixtures and one of the SCC and one LC mixture with a constant powder dosage of 550 kg/m(3) was designed to be containing 440 kg/m(3) of cement and 110 kg/m(3) of fly ash. The other SCC mix was designed to have lower cement dosage for similar strength characteristic. Basaltic pumice aggregate of the SCLC was replaced with expanded perlite aggregate by 10, 20 and 30%. All mixtures were cured by two different curing types. Among the permeability properties of the samples, permeability, capillary water absorption and carbonation properties were measured. The results showed that the production of SCLC mixture as the result of the use of basaltic pumice and expanded perlite seems to be possible. The density of SCLC with basaltic pumice and expanded perlite was about 1900 kg/m(3), while the density of SCC was 2300 kg/m(3). Generally, permeation properties of SCLC such as carbonation and capillary water absorption got worse, since the porous aggregate was used. However, SCLC's compressive strength per density was more efficient than SCC's.
机译：与选择的传统振动轻质混凝土（LC）相比，本文介绍了有关固化类型对一系列不同的自密实轻质混凝土（SCLC）混合物的加速碳化，毛细吸水率和渗透性的影响的实验研究。自密实混凝土（SCC）。考虑了七种不同的混凝土成分：四种SCLC，两种SCC和一种LC混合物。恒定粉末剂量为550 kg / m（3）的所有SCLC混合物，一种SCC和一种LC混合物设计为包含440 kg / m（3）的水泥和110 kg / m（3）的水泥粉煤灰。另一种SCC混合物被设计为具有较低的水泥用量，以实现类似的强度特性。 SCLC的玄武浮石骨料被膨胀珍珠岩骨料替代了10％，20％和30％。所有混合物通过两种不同的固化类型进行固化。在样品的渗透性中，测量渗透性，毛细管吸水率和碳酸化性能。结果表明，由于使用玄武浮石和膨胀珍珠岩而产生SCLC混合物似乎是可能的。带有玄武浮石和膨胀珍珠岩的SCLC的密度约为1900 kg / m（3），而SCC的密度为2300 kg / m（3）。通常，由于使用了多孔聚集体，SCLC的渗透性能，例如碳酸化和毛细管吸水变差。但是，SCLC的单位密度抗压强度比SCC更高。

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