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Wu han dma9_midterm_project


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Wu han dma9_midterm_project

  1. 1. DESMA 9
 Art + Science + Technology 
 Spring 2012
 Professor Victoria Vesna
 Section [1D] Title: [Concrete Canoe] ! Name: [Han Wu]
  2. 2. ABSTRACT Through atypical mixing of cement and gravels, extremely light weight concrete could be produced and used to form different shape and size of concrete canoe. The concrete canoe manufactured this way will obtain superior characteristics such as high strength, light weight, long lasting and easy to form in variety of shapes. Combined with material science’s microscopic technologies, the canoe could also be manufactured with elastic behavior. The goal of this project is to alter people’s preexisting realization of concrete as heavy members and initiate new methods of manufacturing canoes in a cheaper and ground breaking way. Also, this could help areas with low storage of iron mines and those have high difficulties or cost to transport irons to produce canoe like products in a relatively cheap way.
  3. 3. CONCEPT / TOPIC To start with, I am a civil engineering major student and my specified field is in structural analysis and construction material.After learning within the field for a considerable time, I’m increasingly interested in manufacturing projects with breakthrough meanings. Concrete, as a traditional type of manufacturing material has been replaced by steel construction members to some extent these days. ! However, it draws my attention that the “antique” material has not yet come its end of history. People stop using it because of the difficulties to make revolutionary progress on such a material. It’s my intent to have people start thinking and creating methods that could bring concrete a new life through connections between creative usage of concrete and everyday life.
  4. 4. CONTEXT & PRECEDENTS The American Institute of Concrete, known as ACI is an organization that focus on concrete constructions within the United States and is the only organization that produce building codes for concrete industry(1). By far, it’s one of the world’s most acknowledged society of concrete development. According to ACI Spring conventions hold in March, 2013, the topic consists problems of innovations of concrete usage in modern development, which officially brought the task of continuing use of concrete on the open table. During the conference, ACI encouraged engineers, as well as people from all over the field to engage in developing new categories of concrete that could better fit into modern design in construction of buildings and all other related fields. Also, the Fall Convention, 2013, hold in Phoenix also brought up the topic of Innovation in Conservation, which provides a strengthen and directed area of development.
  5. 5. PROJECT PROPOSAL A canoe looks like Gondola is chosen to be the base model. And the idea of kayak is considered into account since the Gondola shape consists of difficulties in controlling the boat afterwards. The bottom of the concrete canoe is constructed into curved shape which could provide better balance for the boat. Depends on the needs, the concrete canoe could be constructed in different length and width. Different from steel canoe or wood canoe for which the size is highly dependent on the materials available, the concrete canoe could be manufactured into different length using the computer numerical controlled machine system to carve into a whole piece without any joint or seam.
  6. 6. Project Proposal (cont.) The most difficult part in the project by far is finding the appropriate mixing ratio between cement, gravel and water. The strength and weight of the concrete is highly dependent on the mixing ratio. The strength of the concrete is controlled by the fraction of gravel, the larger quantity and finer quality of the gravel would increase the strength of the concrete. However, the elastic behavior of the concrete is controlled by the amount of water and cement used. The more the cement, the higher plasticity the concrete. Water content needs to be manipulated in an appropriate range to ensure the concrete is workable, therefore, depends on the terminal usage of the concrete canoe, different mixing ratio should be applied. Another even challenging criteria would be making the concrete canoe rubbery. As common sense, the concrete is supposed to behave with small deformation, however, after rearranging the pattern of concrete, it could behave like rubber. The advantage is obvious that the concrete canoe would never break into parts. By doing so, the concrete canoe could be long lasting and doesn’t need any maintenance.
  7. 7. Project Proposal (cont.) Decorations are the most common art that every body does every day. The concrete canoe is easy to decorate compared to those made of other materials. Propylene, the major materials for pairings are capable to be painted on the concrete canoe. For steel and wood made projects, its always a concern of choosing the right material to decorate, otherwise the material may destroy the original chemical structures of the components and lead to underperformance of the whole structure. However, the propylene wouldn’t react with concrete and is possibly the cheapest painting material to purchase or manufacture. Therefore, the paint is capable for any kind of decorations.
  8. 8. Conclusion Sustainable development is the major task for the entire world due to increasing rate of consumption for natural resources. Infrastructure and other buildings are the most consumptions of natural resources such as iron mines since the rate of using steels is becoming heavier. However, the concrete is majorly chemical components of gravels and cements, both of the materials are basically stones, which are adequate for use in millions of years. The project demonstrated is only a tiny fraction of use of advanced concrete in our daily lives. The concrete canoe could later be used in the area with critical conditions where steel boats are not capable to handle. Such circumstance could be found at extremely cold water areas, where steel structures experience high risk of fracture on the demand side and high cost on supply side. Also, the material used for concert canoe could be applied to buildings to minimize damage due to seismic disasters.
  9. 9. References 1. ! 2.! ! 3.! ! 4.! ! 5.! ! 6.! ! ! ! ! ! ! !
  10. 10. Bibliography / Links!!!!! The Roman Pantheon: The Triumph of Concrete. Retrieved on 2013-02-19.! Zongjin Li; Advanced concrete technology; 2011! "The History of Concrete". Dept. of Materials Science and Engineering, University of Illinois, UrbanaChampaign. Retrieved 8 January 2013.! Nick Gromicko and Kenton Shepard. "the History of Concrete". The International Association of Certified Home Inspectors (InterNACHI). Retrieved 8 January 2013.! Herring, Benjamin. "The Secrets of Roman Concrete". Retrieved 1 October 2012.! "Evaluation of Electrically Conductive Concrete Containing Carbon Products for Deicing". ACI Materials Journal. Retrieved 1 October 2012.! Gibbons, Jack. "Measuring Water in Concrete". Concrete Construction. Retrieved 1 October 2012.! U.S. Federal Highway Administration (14 June 1999). "Admixtures". Retrieved 25 January 2007.! U.S. Federal Highway Administration. "Ground Granulated Blast-Furnace Slag". Retrieved 24 January 2007.! Premixed cement paste. (1989-11-01). Retrieved on 2013-02-19.! "Concrete Testing". Retrieved 10 November 2008.! Henry G. Russel, PE. "Why Use High Performance Concrete?". Technical Talk. Retrieved 10 January 2013.! Self-Healing Concrete: Research Yields Cost-Effective System to Extend Life of Structures May 25, 2010! China’s Three Gorges Dam By The Numbers. Retrieved on 2013-02-19.! "Concrete Pouring of Three Gorges Project Sets World Record". People’s Daily. 4 January 2001. Retrieved 24 August 2009.