Recently, intensive attention has been paid to environmental concerns for securing a more sustainable future. In particular, numerous research studies have been directed toward emerging green materials for minimizing carbon dioxide footprint. In this work, the authors aimed to fabricate an environmentally friendly cement by implementing partial addition of calcined clays in place of clinker. The clay minerals labeled as yellow (YC) and green (GC) were initially calcined at different temperatures in separate processes. The mixed design step was then carried out by replacing with 3, 5 and 10 wt% calcined clay minerals in place of clinker to obtain ordinary Portland cement. Ten different samples (N1 to N10) were successfully prepared. The samples were subjected to some mineralogical, physical and mechanical analyses. The findings clearly showed that the addition of partially calcined clay minerals in substitution for clinker is a very effective method to obtain green cement. Further, the compressive strength measurements (after 28 days) revealed that the highest value (56.4 MPa), which is relatively greater than that of the undoped N10 (54.5 MPa), can be achieved with the incorporation of 10 wt% YC750. In conclusion, the authors report that the partial replacement of clinker by calcined clay can be an alternative green cement blend.

中文翻译：

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用煅烧粘土代替部分熟料生产绿色水泥

最近，为了确保更可持续的未来，人们对环境问题给予了极大的关注。特别是，许多研究已针对新兴的绿色材料以最小化二氧化碳足迹。在这项工作中，作者的目的是通过添加部分煅烧粘土代替熟料来制造环保水泥。最初将标有黄色（YC）和绿色（GC）的粘土矿物分别在不同的温度下煅烧。然后通过代替3、5和10重量％的煅烧粘土矿物代替熟料来进行混合设计步骤，以获得普通的波特兰水泥。成功制备了十个不同的样品（N1至N10）。对样品进行了一些矿物学，物理和机械分析。研究结果清楚地表明，添加部分煅烧的粘土矿物质代替熟料是获得绿色水泥的一种非常有效的方法。此外，抗压强度测量（28天后）显示，通过掺入10重量％的YC750，可以实现最高值（56.4MPa），其相对高于未掺杂的N10的最大值（54.5MPa）。总之，这组作者报告说，用煅烧粘土部分替代熟料可以替代生水泥。通过掺入10重量％的YC750可以实现。总之，这组作者报告说，用煅烧粘土部分替代熟料可以替代生坯水泥。通过掺入10重量％的YC750可以实现。总之，这组作者报告说，用煅烧粘土部分替代熟料可以替代生水泥。