Formwork Rust: Reasons and Prevention

Fig. 1: Rust spots on the steel formwork led to spots on the concrete unit's surface [below]

Fig. 2: Spots on the concrete unit's surface caused by rust spots on the formwork

Fig. 4: Linear arrangement of rust spots on the steel surface of a formwork after removing magnetic clamps

Fig. 4: Linear arrangement of rust spots on the steel surface of a formwork after removing magnetic clamps

Fig. 3: Removal of the magnet clamps

Fig. 3: Removal of the magnet clamps

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