Address
Thửa 30, lô BT-NV3 khu nhà ở Đồng Kênh Trong, Phường Kênh Dương, Quận Lê Chân, Thành phố Hải Phòng.
Laboratory address
Thửa 30, lô BT-NV3 khu nhà ở Đồng Kênh Trong, Phường Kênh Dương, Quận Lê Chân, Thành phố Hải Phòng.
Recognition content
The list of experimental criteria eligible for specialized construction activities of the LAS-Construction 630 laboratory includes: Weld inspection - Non-destructive testing - Magnetic method; Non-destructive method combines ultrasonic meter and rebound gun to determine the compressive strength of concrete; Non-destructive method evaluates concrete quality using ultrasonic pulse velocity to determine the strength of concrete; Determine the thickness of the protective layer, location and diameter of reinforcement in concrete; Loading test evaluates the durability, hardness, crack resistance of concrete components and structures; Experiment on pulling out the pile axis and pushing the pile horizontally; Determine rust and corrosion of steel reinforcement in concrete; Determination of sulfate expansion of cement; Determine the change in length of cement mortar bars in sulfate solution; Precast concrete curb products: Determine concrete strength, defects, size and allowable deviation, load-bearing capacity; Tiles: Sampling and product acceptance; Determine size and surface quality; water absorption, volume weight; flexural strength and fracture force; Surface hardness according to Mohs scale; Abrasion; Determination of chloride ion permeability by coulometric method; Determine paint smoothness; Determine flow time and paint viscosity; Determination of solids and coating agents; Determine paint coverage; Determine drying time and paint dryness; Determine the adhesion of the paint film; Determine the durability of the paint film; Determine the impact resistance of the paint film; Determine the gloss of the paint film; Determine paint color; Determination of organic content of soil by furnace method; Waterproofing material - PVC waterstop: Determination of deviation from nominal size, density, Shore A hardness, tensile strength and elongation at break, change in weight after heat aging , chemical resistance. Technical standards used for tests are fully listed, including Vietnamese and foreign standards (if any). When there is a new version of a technical standard replacing the old standard, the corresponding new standard must be applied. This certificate supplements Certificate No. 570/GCN-BXD dated May 30, 2019 of the Minister of Construction and is valid until May 30, 2024.