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Optimum fly ash proportion in concrete to sustain the impact imposed by diesel

机译:混凝土中最佳粉煤灰比例,以承受柴油带来的影响

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摘要

The paper reports an experimental investigation on the deterioration of diesel on concrete specimens. Also, it is found that this deteriorating effect is lessened with partial replacement of fly ash. Concrete specimens with a water-concrete ratio of 0.47 with ten different percentages of fly ash replacements are used for the study. The specimens are subjected to both water curing and diesel soaking. The specimens are analysed with standard suites like the scanning electron microscope (SEM), X-ray diffraction (XRD) and sorptivity tests with the ground truth rendered by compressive strength (CS) analysis. We perform detrended fluctuation analysis (DFA) to get an insight on the significance of the XRD data buffered with varying window sizes of the XRD data series. It is evident from the results that 30% replacement of fly ash admixture is optimum for surpassing the negative impact of diesel on concrete.
机译:该论文报告了对混凝土试样上柴油劣化的实验研究。而且,发现通过部分替换粉煤灰可减轻这种劣化作用。本研究使用水混凝土比为0.47的混凝土标本,并用十种不同百分比的粉煤灰替代。样品要进行水固化和柴油浸泡。使用标准套件(例如扫描电子显微镜(SEM),X射线衍射(XRD)和吸着性测试)对标本进行分析,并通过抗压强度(CS)分析得出地面真实情况。我们执行去趋势波动分析(DFA),以了解XRD数据序列窗口大小不同时缓冲的XRD数据的重要性。从结果可以明显看出,粉煤灰外加剂的30%替代对于克服柴油对混凝土的不利影响是最佳的。

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