41. The buttresses and ribs were cast in situ in sections, using the same reusable formwork . 42. Skilled workers were required on the dam for fixing the formwork where the concrete was poured. 43. The ceiling consists of permanent formwork of curved corrugated iron sheets resting on exposed iron beams. 44. On January 14, 2008, formwork collapsed during a concrete pour, killing one worker. 45. Steel formwork , for example, is used for rounded corners if required for structural reasons. 46. "' MEVA Formwork Systems "'is a worldwide producer of formwork systems. 47. "' MEVA Formwork Systems "'is a worldwide producer of formwork systems. 48. With its all-plastic facing MEVA formwork delivers high-quality and architectural concrete surfaces. 49. Concrete formwork can be prepared in several ways, such as Slip forming and Steel plate construction. 50. In mid-February 2012, the northern structure has been poured and formwork was being removed.
