KNIT CONCRETE FORMWORK ABHIPSA PAL 1 , WI LEEN CHAN 2 , YING YI TAN 3 , PEI ZHI CHIA 4 and KENNETH JOSEPH TRACY 5 1,2,3,4,5 Singapore University of Technology and Design 1,2 {abhipsapal.96|chanwileen}@gmail.com 3 yingyi_tan@mymail.sutd.edu.sg 4,5 {peizhi_chia| kenneth_tracy}@sutd.edu.sg Abstract. The manufacture of concrete funicular shells often relies on traditional formwork construction techniques to provide a sculptured cavity for the fluid material to occupy (Bechthold, 2004). While this enables a predictable geometric outcome, the extensive use of timber and/or steel to construct these formworks account for up to 60% of the total production cost of concrete and are discarded after the casting is complete (Lloret et al. 2014). Thus, we propose an alternative method to create prefabricated modular systems out of concrete casted in customised tubular knitted membranes. These perform as a network of struts that can be affixed onto 3D printed nodes of a singular design. Altogether, these components serve as a kit-of-parts that can be transported to site and assembled together to create shell geometries. Keywords. Knitted Textile; Fabric Formwork; Concrete Casting. 1. INTRODUCTION This paper demonstrates the design and fabrication of a modular system composed of prefabricated concrete struts that are cast within knitted tubular formwork and assembled together with 3D printed joints. In this scenario, we seek to capitalise upon the customisability of additive manufacturing methods (i.e. machine knitting and 3D printing) to create a kit-of-parts for the formation of shell-like frame geometries. RE: Anthropocene, Proceedings of the 25 th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA) 2020, Volume 1, 213-222. © 2020 and published by the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA), Hong Kong.