To reduce transportation costs for building a lunar base station, it is important to utilise in-situ resources like lunar regolith. Lunar regolith can be used to create a concrete-like material by means of geopolymerization. For application of geopolymerizing mixtures, the rheology of the slurry must be known in advance. This article investigates the rheology of mixtures of lunar dust simulants with water, NaOH (as alkaline agent) and urea (as superplasticizer). The rheology of all the mixtures can be approximated with the Bingham Model. Aging has a dramatic effect on the rheology of the water + simulant mixture and, after 2 days, the yield stress decreases by six times. The presence of NaOH, on the contrary, increases both the apparent viscosity and the yield stress as it promotes geopolymerization. The addition of urea reduces the viscosity by 25%, but it has a limited effect on the yield stress. These findings can enable the design of construction 3D printers on the moon.

为了降低建设月球基站的运输成本，重要的是利用月球风化层等就地资源。月球风化层可用于通过地质聚合来制造类似混凝土的材料。对于地质聚合混合物的应用，必须事先知道浆液的流变性。本文研究了月球尘埃模拟物与水、NaOH（作为碱性剂）和尿素（作为超塑化剂）的混合物的流变学。所有混合物的流变学都可以用宾汉模型来近似。老化对水 + 模拟物混合物的流变学有显着影响，2 天后，屈服应力降低了 6 倍。相反，NaOH 的存在会增加表观粘度和屈服应力，因为它促进了地质聚合。尿素的加入使粘度降低了 25%，但对屈服应力的影响有限。这些发现可以使月球上的建筑 3D 打印机的设计成为可能。