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首页> 外文会议>Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments >Magnesia-Metakaolin Regolith Mortar for Martian Construction
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Magnesia-Metakaolin Regolith Mortar for Martian Construction

机译：火星建筑用镁质偏高岭土风化层砂浆

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The long-term establishment of self-sufficient settlements on Mars will require the extensive use of in situ resources to construct habitats and infrastructure. Concrete is the most widely used construction material on Earth, and the vast majority of the necessary components are also readily available on the surface of Mars with little processing. One of the major limitations to the use of concrete, however, is the need to develop a binder system that does not rely on calcium carbonate as the feedstock but has similar properties to the Portland cement. Magnesium oxide-based binders extracted from the Martian regolith are a potential option. Here, we present the results of a magnesium alumina silicate system that combines magnesium oxide and calcined clay with a regolith simulant and water. The mortar samples were found to have 28-day compressive strengths in an excess of 20 MPa, and 90-day strengths of 40 MPa, which would be sufficient for the majority of the structural requirements.
机译：要在火星上长期建立自给自足的定居点，就需要广泛利用原地资源来建造栖息地和基础设施。混凝土是地球上使用最广泛的建筑材料，而且绝大多数必要的组件在火星表面也很容易获得，几乎不需要加工。然而，混凝土使用的主要限制之一是需要开发一种粘合剂系统，该系统不依赖碳酸钙作为原料，但具有与波特兰水泥类似的性能。从火星表土中提取的氧化镁基粘合剂是一种潜在的选择。在这里，我们展示了镁铝硅酸盐系统的结果，该系统将氧化镁和煅烧粘土与表土模拟物和水结合。发现砂浆样品的28天抗压强度超过20 MPa，90天抗压强度超过40 MPa，足以满足大多数结构要求。

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