Details

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• New concrete should be cured for at least 28 days and should have a pull off strength ≥ 1.5 N/mm².
•  Cement or mineral based substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and to achieve an open textured surface.
• Loose friable material and weak concrete must be completely removed and surface defects such as blowholes and voids must be fully exposed.
•  Substrate must have sufficient gradient for surface water to run off easily without ponding.