달 이착륙장 건설을 위해 폴리머 바인더를 이용한 벽돌의 조립 시공 적용

Abstract

As human interest in space increases, research on planetary exploration is actively conducted globally. This study focused on lunar exploration near the Earth for planetary exploration and material studies were conducted to construct landing pad on the Moon. In order to construct the landing pad on the Moon, construction must be carried out according to the lunar environment. As the transportation of materials from the Earth to the Moon is very costly, construction on the Moon is based on the concept of In-Situ Resource Utilization(ISRU). The purpose of this study is to make brick that meet the conditions by using polymeric binders to construct the lunar landing pad. In order to make bricks under lunar environment, The technique to solidify the lunar soil is needed. A literature review of the binder that can solidify the lunar soil has confirmed the feasibility of using a polyethylene binder. When the lunar soil was solidified with polyethylene binder, the optimum binder condition to make bricks was derived through experiments. The parameters of the polyethylene binder were divided into three kinds: the density difference of the binder, the heating temperature and the heating time required to solidify the lunar soil, and the contents of the binder. In order to carry out the experiment according to the lunar environment, Korea of Hanyang Lunar Simulant-1(KOHLS-1) was used in place of lunar soil. All experimental equipments were designed to be controlled by software. Experiments were conducted to determine the optimum binder condition to make bricks and devise a method of brick assembly to construct lunar landing pad. By setting the basic unit area of the specimen, the lunar soil is solidified in a certain shape of the rectangular parallelepiped, and the lunar landing pad is constructed by using it. Therefore, this study suggests the possibility of constructing the lunar landing pad by deriving the optimum binder condition to make bricks with polymeric binders.