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首页> 外文期刊>Journal of Advanced Research >Strength development in concrete with wood ash blended cement and use of soft computing models to predict strength parameters
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Strength development in concrete with wood ash blended cement and use of soft computing models to predict strength parameters

机译：木粉灰水泥在混凝土中的强度发展以及使用软计算模型预测强度参数

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In this study, Wood Ash (WA) prepared from the uncontrolled burning of the saw dust is evaluated for its suitability as partial cement replacement in conventional concrete. The saw dust has been acquired from a wood polishing unit. The physical, chemical and mineralogical characteristics of WA is presented and analyzed. The strength parameters (compressive strength, split tensile strength and flexural strength) of concrete with blended WA cement are evaluated and studied. Two different water-to-binder ratio (0.4 and 0.45) and five different replacement percentages of WA (5%, 10%, 15%, 18% and 20%) including control specimens for both water-to-cement ratio is considered. Results of compressive strength, split tensile strength and flexural strength showed that the strength properties of concrete mixture decreased marginally with increase in wood ash contents, but strength increased with later age. The XRD test results and chemical analysis of WA showed that it contains amorphous silica and thus can be used as cement replacing material. Through the analysis of results obtained in this study, it was concluded that WA could be blended with cement without adversely affecting the strength properties of concrete. Also using a new statistical theory of the Support Vector Machine (SVM), strength parameters were predicted by developing a suitable model and as a result, the application of soft computing in structural engineering has been successfully presented in this research paper.
机译：在这项研究中，评估了由木屑的无节制燃烧制备的木灰（WA）在传统混凝土中作为部分水泥替代品的适用性。锯末是从木材抛光机上获得的。介绍并分析了WA的物理，化学和矿物学特征。评估和研究了掺有WA水泥的混凝土的强度参数（抗压强度，抗拉强度和抗弯强度）。考虑到两种水灰比，包括对照样品的两种不同的水灰比（0.4和0.45）和5种不同的WA替代百分比（5％，10％，15％，18％和20％）。抗压强度，劈裂抗拉强度和抗弯强度的结果表明，混凝土掺合料的强度性能随木灰含量的增加而略有下降，但强度随年龄的增长而增加。 WA的XRD测试结果和化学分析表明，它含有无定形二氧化硅，因此可用作水泥替代材料。通过对本研究结果的分析，得出的结论是，WA可以与水泥混合而不会对混凝土的强度性能产生不利影响。此外，还使用支持向量机（SVM）的新统计理论，通过开发合适的模型来预测强度参数，因此，本研究成功地提出了软计算在结构工程中的应用。

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