Production of Lunar Concrete Using Molten Sulfur
A study has been undertaken by the authors and supported by NASA to study the feasibility of using lunar regolith with different binders such as molten sulfur, epoxy or hydraulic cement...
Methodology for Comparing Lunar Settlement Designs
This paper examines a methodology used to compare divergent lunar settlement proposals. It is suggested that the methodology be added to other selection tools for determining which is...
Recycled Engineering Applied to the First Lunar Outpost
Once the proposed Lunar Base configurations obtained by the Undergraduate Research Opportunities Program (UROP) team have been analyzed, a systems study of the usefulness of the specific...
Transferring Construction Technology to the Moon and Back
This paper examines past NASA contributions to the construction industry, analyzes the challenges ahead for space-based construction, cites examples of new technologies currently used...
Lunar Base Construction Using the Reinforce Earth Method with Geotextile
This paper focuses on the construction of layered embankments using regolith and filmy materials (called geotextiles) with a robot machine before setting up of the cylindrical module on...
Construction of Large Lunar Structures by Fusion Welding of Sintered Regolith
Regardless of material used, construction of large lunar structures using indigenous resources is likely to requires joining of simple blocks or pieces. Fusion welding using an optical...
Sintering Bricks on the Moon
Sintering of full-scale 'bricks' from lunar soil simulant materials can be accomplished by radiant heating to 1100?C for approximately 2 hours, followed by slow cooling. Small-scale precompaction...
Lunar Base Aspects for Biotechnology Industry
A lunar base can provide unique services to biotechnology research, development, and production. A lunar location as well as the vacuum environment can protect experiments from contamination...
Design Criteria for Lunar Construction Equipment
It is anticipated that lunar installations will, from the beginning, require moving and assembly of components and the use of lunar regolith as a construction material. The functional...
Future Launch Systems: The Policy Challenge
A review of the literature and discussions with military, commercial, and NASA representatives shows that all users agree we need new systems, but there is no agreement on which to pursue....
Space Commercialization: Problems of Law and Policy
This paper focuses on executive and legislative efforts to promote the growth of commercial space industries in the United States. After a discussion of the current, situation and efforts...
Mixed-Use Business Park Developments in Space: A Real-Estate Paradigm
Standard terrestrial business-park development practice is proffered as a realistic organizational model for expanding human activity in Earth orbit. The histories, methods and biases...
ARIANE-5 Launch Operations Construction and Operation of a New Launch Complex for Lower Cost, Higher Reliability Missions
This paper describes the main criteria driving the evolution of these facilities : launch rate, vulnerability to accidents, reliability and safety, cost optimization and adaptation to...
Puerto Rico Privatizes the Roads
The opening of Puerto Rico's Teodoro Moscoso Bridge in San Juan early in 1994 will usher in a new era of privately financed toll roads. The first product of the 1989 Private...
Effective Project Planning Techniques
Setting tabular and graphic standards for the presentation, storage and handling of project-related data from the start can make the job of managing, scheduling and documenting a project...
Recent Developments in Seismic Response of Composite Structures
Lack of sufficient data has limited a wider application of structures using mixed steel-concrete construction in seismically active regions. This paper summarizes some recent studies at...
Talmadge Bridge Replacement
This paper discusses the design of the main spans and approach spans for the replacement of the Talmadge Bridge for the Georgia Department of Transportation. The design of the concrete...
Making an Olympic Stadium and a Baseball Park
A new dual-purpose stadium which reflects not only the classical origins of the Olympic Games, but also the tradition of baseball, is the architectural centerpiece for the 1996 Centennial...
Case Study - Performance of Diaphragm Walls During Construction; Predictions vs. Field Measurements
Rigid diaphragm walls (slurry walls) are being used more than any other earth supporting system for underground construction projects in confined downtown sites throughout the United States...
Stability of Lift Slab Structure During Construction Stage
The lift slab structures impose stability problems during the construction phase. The process of constructing this type of structure requires placing the masses of the floor slabs at a...
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