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What is Concrete Surface Retarder Overview about?

This document describes two techniques for creating an exposed aggregate concrete surface: the negative and positive processes. The negative process involves applying a retarder to the casing before pouring concrete. After 15-24 hours, the top layer can be washed away, exposing the aggregate below. The positive process applies a retarder to the fresh concrete surface after pouring. The surface can be washed away 5 hours to 3 days later, also exposing the aggregate. A third technique, acidification, inv

Author

ssekban

Language

EN