1 General provisions
1.0.1 This code is prepared with a view to improve the construction level of building anticorrosionengineering, strengthen the quality control of the building anticorrosion engineering constructionprocess,and ensure the construction quality and safety.
1.0.2 This code is applicable to the construction of anticorrosion engineering for construction,extension and renovation of buildings and structures.
1.0.3 The building anticorrosion materials entering the site shall have product quality certificate,quality technical indicators and testing methods, and quality inspection report or technical identificationdocuments.
1.0.4 Mix ratio of materials to be used with on-site prepafation shall be determined by experiment.The mix ratio determined by the test shall not be arbitrarily changed.
1.0.5 Construction of building anticorrosion engineering shall be carried out in accordance with theprovisions of the design documents. When desigh changes,material substitutions, or new materials arerequired,the design department's consent shall be obtained.
1.0.6 The construction and use of materials for construction anticorrosion engineering shall becomplied with,not only the requirements stipulated in this code,but also those in the current relevantstandard of the nation shall be complied with.
2 Terms
2.0.1 Potassium silicate material
A silicate type acid-resistant and heat-resistant material prepared by using an aqueous solution ofpotassium silicate as a cementing material,condensed aluminum phosphate as a curing agent,a silicon-aluminum oxide as a powder and an aggregate,and a small amount of auxiliary materials.
2.0.2 Assort of matched coating
A composite coating reasonably combined with all kinds of compatible coating in materialselection,structure matching,application procedure and other aspects.
2.0.3 Jet flow of high pressure
The high-pressure,low-flow water pumped by the high-pressure pump passes through thepressurization pipeline to the rotary nozzle and is converted into a low-pressure high-flow jet with highimpact kinetic energy to impact the surface to be cleaned.
3 Basic requirements
3.1 General requirements
3.1.1 The construction organization shall establish a quality management system and safetymanagement system for the anticorrosion construction site,and shall have sound quality managementregulations,safety management regulations and corresponding construction technical standards.
3.1.2 The following conditions shall be available before implementation of building anticorrosionconstruction:
1 The engineering design drawings and related technical documents are complete,and the designand the drawings have been explained and reviewed in accordanee with the established procedures.2 The construction organization design or construction plan has been approved,and technical andsafety disclosure has been carried out.
3 Construction personnel are qualified in accordance with relevant regulations.4 The project start-up documents are ready
5 Machinery and tools used for anticorrosion construction shall be qualified; the measuringinstruments shall be within the validity period of the verification.
6 The corresponding emergency plan for occupational health and safety and environmental
protection has been formulated.
3.1.3 Building anticorrosion construcrion shall meet the requirements of the current national standards
for environmental protection,safety/technology and labor protection.
3.1.4 Construction shall be carried out according to the construction design or construction plan.
3.1.5 Each process m the construction shall have a complete construction record.
3.2 Base course requirements
3.2.1 The base course of the anticorrosion engineering shall include concrete base course, steelstructure base course and wood base course.
3.2.2 The base course shall meet the design requirements. Before the construction of anticorrosionengineering, the base course shall be checked and accepted and the handover procedures shall becompleted.
3.2.3 The concrete base course shall be in accordance with the following requirements:
1 The base course shall be dense and shall be free of cracks, peeling, pitting, sanding,andhollowing. The strength shall be tested and shall meet the design requirements,and there shall be nogroundwater leakage or uneven subsidence.
2 The surface flatness of the base course shall be checked with a 2m guiding ruler. Where thethickness of the anticorrosion layer is not less than 5mm,the allowable interstice shall not be larger than4mm;where the thickness of the anticorrosion layer is less than 5mm,the allowable interstice shall notbe larger than 2mm.
3 The slope of the base course shall meet the design requirements.4 When pouring concrete, formwork of the fair-faced concrete should be used. When using steel
