OPTIMIZATION OF EMBODIED ENERGY FOR LOW ENERGY GREEN CONCRETE
Rahul Chauhan
Student of M.E. Structural Engineering, Gujarat Technological University , IN
Ajaysinh Vaghela
Student of M.E. Structural Engineering, Gujarat Technological University , IN
Jugal Mistry
Student of M.E. Structural Engineering, Gujarat Technological University , IN
Keywords: Embodied energy, Fly ash (class F), Ground granulated blast furnace slag (GGBS), Limestone powder (LSP), Phosphogypsum powder (PGP), Green concrete.
Abstract
The building plays an important role for energy consumption in the nation. For building construction it equires enormous amount of energy. The production of building materials which involves series of processes, due to the energy used for each process, the carbon dioxide emissions in the atmosphere and certain expenses done for performing the process. Extraction of raw material, transportation of raw material to site, manufacture of building material it involves mechanical and thermal energies. The sum of the energies of all operations is known as embodied energy of the building material. Hence, there is a good trend to use various building materials for construction which consumes low amount of energy. Concrete has extensive amount of contribution to the building construction, so we will focus on low energy green concrete. Low energy green concrete is a revolutionary topic in the history of concrete. It is not rely on colour. As green concrete uses less energy in the production and generates less carbon dioxide than common concrete, hence it is more preferable. Materials used for building construction such as concrete, complete or partial replacement of cement, fine aggregate & course aggregate can be used as green concrete. Building materials which consumes high embodied energy such as cement can be replaced with low embodied energy materials such as fly ash, ground granulated blast furnace slag, limestone powder, Phosphogypsum powder. By accessing the embodied energy of concrete materials, through comparative study, try to produce green concrete which consumes low energy, would be efficient for its workability and durability and concluded by analytical study that this concrete is suitable for construction work.
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