The printing of buildings has a lot of potential advantages when compared to conventional construction methods. Contour crafting is a building printing technology being researched by Behrokh Khoshnevis of the University of Southern California’s Information Sciences Institute that uses a computer-controlled crane or gantry to build edifices rapidly and efficiently with substantially less manual labor. Contour Crafting technology has great potential for automating the construction of whole structures as well as sub-components. Contour crafting (CC) is a method of layered manufacturing (LM) process that uses polymer, ceramic slurry, cement, and a variety of other materials and mixes to build large scale objects with smooth surface finish (Khos hnevis, 1998). This technology uses the extrusion-based technique to extrude two layers of cementitious mixture to build a vertical concrete formwork. Contour Crafting Contour crafting (CC) technology has been developed at the university of Southern California, USA. The Reduction Of Construction Duration By Implementing Contour Crafting ,Conference Paper, June 2014 6. 3D Printing in Construction 3D printing in construction, also known as contour crafting or building printing, is what many believe the future of construction. Journal Of The International Association Of Advanced Technology And Science, automated Constructions By Contour Crafting,piyush Sharma, department Of Civil Engineering 5.

The impact of the Contour Crafting technology will be significant, given the current US construction-related expenditures which total $300 billion in the public … Contour Crafting (CC) is an additive fabrication technology that uses computer control to exploit the superior surface-forming capability of troweling to create smooth and accurate planar and free-form surfaces (Khoshnevis et al., 2001-a; Khoshnevis et al, 2001-b, khoshnevis 2002). Contour Crafting is a novel technology in construction industry based on 3D printing that uses robotics to construct free form building structures by repeatedly laying down layers of material such as concrete. It is actually an approach to scale up automatic fabrication from building small industrial parts to constructing buildings.