T/BYXT 035-2023 Active

Scope: This document specifies the terms and definitions of rare earth antibacterial and epidemic prevention engineering, construction projects, technical requirements, material and equipment requirements, engineering design, budget, construction, supervision, acceptance, and maintenance for rare earth antibacterial and epidemic prevention engineering in building indoor spaces and transportation mobile spaces. Other scenarios of antibacterial and epidemic prevention engineering can be referenced for implementation. Main technical content: 9. Project construction 9.1 Coating and filming 9.1.1 Surface treatment of the base of environmental objects should be carried out in accordance with the requirements of GB/T 51082-2015 Chapter 3.1. The requirements for surface treatment of different base materials are as follows: a) The surface of the carbon steel base should meet the requirements of GB/T8923.1 and GB/T8923.2. b) The surface of aluminum alloy and galvanized bases should be clean, dust-free, and free of oil stains. c) The plastic base should be degreased or roughened on the surface. d) The surface of the wooden base should be planed, free of dust, oil stains, and resin, with a moisture content not exceeding 15%. When the base surface is contaminated by grease, it can be first polished with sandpaper and then cleaned with solvents such as gasoline. e) The cement base should be flat, strong, and dense before coating. It should not have oil stains or other contaminants, and should be kept dry and clean. When applying polymer cement-based materials, the substrate should be fully wetted but without water accumulation. The strength grade of the coated concrete floor should not be lower than C25. f) Before coating on the existing coating, if it is the same type of coating, the loose parts should be removed, and the solid coating can be retained and roughened on the surface; when coating with a different coating from the original coating, the compatibility between the two