Recognition content
The list of testing criteria eligible for specialized construction activities of LAS-Construction 509 laboratory includes: Mechanical and physical testing of cement; Testing construction mortar; Aggregate testing for concrete and mortar; Testing of concrete and heavy concrete mixtures; Testing of metal materials and welded joints; Laboratory soil mechanical testing; Field testing; Mechanical testing of masonry bricks; Mechanical testing of concrete bricks; Mechanical testing of self-inserting concrete bricks; Mechanical testing of roofing tiles; Physical and mechanical testing of cement floor tiles; Testing of terazo tiles; Testing lightweight concrete bricks; Testing of tiles; Testing natural paving stones; Testing artificial paving stones; Testing chemical additives for concrete; Testing activated mineral additives for concrete; Wall putty testing; Testing of tile mortar; Testing of adhesive reinforcement materials; Plasterboard testing; Testing waterproofing materials – waterproof tape/PVC elastic joints; Asphalt concrete testing; Bitumen testing; Testing emulsion, acid-based asphalt; Physical and mechanical testing of mineral powder materials in asphalt concrete; Chemical analysis of water for construction; Bentonite mechanical testing; Test permeable geotextiles and permeable covers; Asbestos-cement corrugated board testing; Wood testing. Technical standards used for tests are fully listed, including Vietnamese and foreign standards (if any). When there is a new version of technical standards to replace the old standards, the corresponding new standards must be applied. This certificate is valid for 5 years from the date of issue.