Recognition content
The list of testing criteria eligible for specialized construction activities of LAS-Construction 649 laboratory includes: Testing of physical and chemical criteria of cement; Testing of physical and mechanical properties of aggregates for concrete and mortar; Testing of physical and mechanical criteria of masonry mortar; Testing of physical and mechanical properties of concrete and heavy concrete; Testing of soil mechanical criteria; Testing of metal materials and welded joints; Asphalt/liquid asphalt testing; Asphalt emulsion testing; Testing mineral powder materials in asphalt concrete; Asphalt concrete testing; Field experiments; Bentonic mechanical testing; Water chemistry testing for construction; Field of mechanical testing of self-inserting concrete bricks; Field of mechanical testing of concrete bricks; Testing of physical and mechanical criteria of masonry bricks; Terazo tile test; Testing of cement floor tiles/ granito tiles; Testing of non-autoclaved and non-autoclaved aerated concrete bricks and aerated concrete. Technical standards used for the 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 and replaces Decision No. 228/QD-BXD dated June 16, 2014 of the Minister of Construction.