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Investigation of concrete produced using recycled aluminium dross for hot weather concreting conditions

机译：在炎热天气下使用再生铝渣生产的混凝土的研究

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摘要

Abstract Aluminium dross is a by-product obtained from the aluminium smelting process. Currently, this dross is processed in rotary kilns to recover the residual aluminium, and the resultant salt cake is sent to landfills. The present study investigates the utilization of recycled aluminium dross in producing concrete, which is suitable for hot weather concreting condition. The primary objectives of the experimental study are to examine the feasibility of using concrete blended with recycled aluminium dross under hot weather concreting situations and then to evaluate the strength and durability aspects of the produced concrete. From the experimental results it is observed that the initial setting time of the recycled aluminium dross concrete extended by about 30 minutes at 20% replacement level. This property of recycled aluminium dross concrete renders it to be suitable for hot weather concreting conditions. Based on the results obtained, the replacement of cement with 20% of Al dross yields superior mechanical and durability characteristics.
机译：摘要铝渣是铝冶炼过程中产生的副产品。目前，该渣s在回转窑中进行处理以回收残留的铝，然后将所得的盐饼送入垃圾填埋场。本研究调查了再生铝渣在生产混凝土中的利用情况，该方法适用于炎热的天气条件。实验研究的主要目的是检验在炎热的天气条件下将混凝土与再生铝渣混合使用的可行性，然后评估所生产混凝土的强度和耐久性。从实验结果可以看出，再生铝渣混凝土的初始凝固时间以20％的替代水平延长了约30分钟。再生铝渣混凝土的这种特性使其适用于炎热天气的混凝土条件。根据获得的结果，用20％的Al渣the替代水泥可获得优异的机械和耐久性能。

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