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    • Optimization of Non-Circular Void Concrete Extruder 

      Braga, Mateus; Penner, David; Zheng, Qiuhao; Au-Yeung, Lap (2019-12-04)
      Ultra-Span, an industry leader in circular void concrete extruders is currently developing a non-circular void (NCV) concrete extruder. The current NCV design produces uneven concrete slabs and its extrusion speed is slow. ...