@mikhail.barinoff: 5 minute prep that saves hours of grinding. In monolithic concrete construction, maintaining the surface cleanliness of starter bars at cold joints is critical for ensuring optimal load transfer between structural phases. The Mechanics of Rebar Adhesion: Slurry Contamination: High-pressure concrete pumping generates significant splatter. If cement slurry is allowed to cure on exposed column starter bars, it forms a brittle, low-friction crust over the steel. Bond Degradation: Reinforcement performance relies on both chemical adhesion and the mechanical interlock of the rebar's ribs with the surrounding concrete. A layer of dried, uncompacted slurry acts as a "bond-breaker," severely compromising the structural continuity of the vertical load path. Proactive Shielding: Wrapping the exposed reinforcement in protective polyethylene film prior to the slab pour completely isolates the steel. Once the slab sets, the film is stripped to reveal pristine rebar, ready for the column pour without the need for labor-intensive and often inconsistent mechanical cleaning (wire brushing or grinding). Preserving the steel-to-concrete interface at cold joints is a fundamental requirement for monolithic structural strength. #bimxdv

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Monday 25 May 2026 16:47:17 GMT