Doğan-Sağlamtimur Neslihan, Bilgil Ahmet, Szechyńska-Hebda Magdalena, Parzych Sławomir, Hebda Marek
Department of Environmental Engineering, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey.
Department of Civil Engineering, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey.
Materials (Basel). 2021 Feb 12;14(4):877. doi: 10.3390/ma14040877.
Bottom ash (BA) is an industrial solid waste formed by the burning of coal. The environmental problems and storage costs caused by this waste increase with every passing day. In this study, the use of BA as an additive (clay substitute) in fired brick production was investigated. The study consisted of two stages. In the first stage, cylinder blocks were produced from clay used in brick production. The second stage was the examination of the experimental substitution of clay with 10, 20, 30 and 40% BA. Samples were fired at 900, 1000, 1100 and 1150 °C to produce fired brick samples. The unit weight, compressive strength (before and after freeze-thawing) and water absorption were analyzed for the samples. The unit weight values decreased in the samples containing BA. The mechanical properties met the conditions prescribed in the relevant standards; i.e., all of the samples fired at 1100 and 1150 °C had a sufficient compressive strength over 20 MPa. The high potential of fired bricks for the construction industry was proved. BA can be used as a clay substitute, while the developed protocol can be used to effectively produce fired bricks.
底灰（BA）是煤炭燃烧产生的一种工业固体废物。这种废物所引发的环境问题和储存成本与日俱增。在本研究中，对底灰作为烧制砖生产中的添加剂（替代粘土）的用途展开了调查。该研究包含两个阶段。第一阶段，用制砖所用的粘土制作缸体。第二阶段是对用10%、20%、30%和40%的底灰对粘土进行实验性替代的情况进行检测。将样品在900℃、1000℃、1100℃和1150℃下烧制，以制作烧制砖样品。对样品的单位重量、抗压强度（冻融前后）和吸水率进行了分析。含底灰的样品单位重量值下降。力学性能符合相关标准规定的条件；也就是说，所有在1100℃和1150℃下烧制的样品都具有超过20MPa的足够抗压强度。证明了烧制砖在建筑业具有很大潜力。底灰可作为粘土替代品，同时所制定的方案可用于有效生产烧制砖。
