A, curtain wall division inspection batch division principle?
1) For curtain wall projects with the same design, materials, technology and construction conditions, divide an inspection lot every 500 ~ 1000m2, and divide another inspection lot when it is less than 500 M2.
2) Discontinuous curtain wall works of the same unit project shall be divided into inspection lots separately.
3) For special-shaped curtain walls or curtain walls with special requirements, the division of inspection lots shall be determined by the supervision unit (or the construction unit) and the construction unit through consultation according to the structure, technological characteristics and project scale of the curtain wall.
2. Curtain wall (insulation material, glass, insulation profile)?
1. Check and accept the varieties, appearance, specifications, packaging and dimensions of materials and equipment. Check the quality certificates, factory certificates, Chinese instructions and performance test reports of materials and equipment; Check the type inspection report of finalized products and complete sets of technologies. Imported materials and equipment shall be inspected for entry and exit commodities according to relevant regulations. Number, location, anchoring depth and pull-out force of pre-buried or post-buried anchors. ?
2. Material reinspection items:
1) thermal insulation material: thermal conductivity and density;
2) Curtain wall glass: visible light projection ratio, heat transfer coefficient, shading coefficient and dew point of hollow glass;
3) Thermal insulation profile: tensile strength and shear strength;
4) Wind pressure resistance test, air permeability test and rain water leakage test?
3. Sampling quantity and method: At least one group of the same product from the same manufacturer should be randomly selected. ?
1) glass curtain wall engineering test air tightness, water tightness, wind pressure resistance and in-plane deformation performance. For curtain wall projects with the same design, materials, technology and construction conditions, an inspection lot shall be divided every 500- 1000 square meters, and an inspection lot shall also be divided if it is less than 500 square meters; Discontinuous curtain walls of the same project should also be divided into inspection lots separately. The number of samples shall be sampled on site according to the construction drawings. ?
2) Curtain wall glass shall be inspected: shading coefficient, visible light transmittance, heat transfer coefficient and dew point of insulating glass. At least one group of products from the same manufacturer, the samples are 3 pieces of 300*300mm non-tempered insulating glass. ?
3) Detection of silicone weatherproof sealant: contamination, compatibility and tensile modulus. Every 5t? In a batch, if it is less than 5t, it shall be sampled as a batch. Samples are: sealant 1 piece, stone 25*25*75mm, standard state1piece, heated1piece. Compatibility in contact with materials, Shore hardness and tensile bond strength in standard state shall be taken as a batch every 3 tons, and a batch of samples shall be taken when it is less than 3 tons. Compatibility test 1: 500g of component A and component B were extracted in proportion. ?
4) Testing the composite strength of aluminum-plastic composite panels: 3000m2 is a batch, and less than 3000m2 is counted as a batch. 300*300mm2 sample. ? 1.3.5 Test the dry flexural strength, water-saturated flexural strength, water absorption and frost resistance of dry-hung stone for curtain wall. At least one group of incoming materials from the same manufacturer, variety and type should be selected. The quantity is 100*400mm20 pieces and 50 * 50mm5 pieces.