Abstract
3D concrete printing is a kind of construction method that takes concrete as processing material for extrusion forming. The material properties of concrete make it difficult to control the dimensional accuracy of printed parts, so there are always problems in forming quality of concrete printed parts. In this paper, the error sources of concrete printed parts are discussed firstly, and the forming quality of the printed parts material is analyzed in combination with GD&T system and concrete structure engineering construction quality acceptance specifications. Then, the factors affecting the forming quality are summarized. Finally, the optimization and improvement methods are proposed.
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