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Utilization of ceramic waste as fine aggregate within Portland cement and fly ash concretes

机译：硅酸盐水泥和粉煤灰混凝土中细粒骨料的陶瓷废物利用

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摘要

The aim of this research work was to investigate the feasibility of using ceramic waste and fly ash to pro-duce mortar and concrete. Ceramic waste fragments obtained from local industry were crushed and sieved to produce fine aggregates. The measured concrete properties demonstrate that while workability was reduced with increasing ceramic waste content for Portland cement concrete and fly ash concrete, the workability of the fly ash concrete with 100% ceramic waste as fine aggregate remained sufficient, in contrast to the Portland cement control concrete with 100% ceramic waste where close to zero slump was measured. The compressive strength of ceramic waste concrete was found to increase with ceramic waste content and was optimum at 50% for the control concrete, dropping when the ceramic waste con-tent was increased beyond 50%. This was a direct consequence of having a less workable concrete. How-ever, the compressive strength in the fly ash concrete increased with increasing ceramic waste content up to 100%. The benefits of using ceramic waste as fine aggregate in concrete containing fly ash were there-fore verified.
机译：这项研究工作的目的是研究使用陶瓷废料和粉煤灰生产砂浆和混凝土的可行性。从当地工业获得的陶瓷废料碎片被压碎并过筛，以产生细碎的骨料。测得的混凝土性能表明，尽管波特兰水泥混凝土和粉煤灰混凝土的陶瓷废料含量增加，可使用性降低，但与波特兰水泥对照混凝土相比，以100％陶瓷废料作为细骨料的粉煤灰混凝土仍具有足够的可加工性。含100％陶瓷废料的坍落度接近零。发现陶瓷废混凝土的抗压强度随陶瓷废料含量的增加而增加，对于对照混凝土，抗压强度最佳为50％，当陶瓷废料含量增加到50％以上时，抗压强度下降。这是混凝土使用率较低的直接结果。但是，粉煤灰混凝土的抗压强度随着陶瓷废料含量的增加而提高，最高可达100％。因此，已经证实了在含粉煤灰的混凝土中使用陶瓷废料作为细骨料的好处。

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