Recognition content
The list of testing criteria eligible for specialized construction activities of LAS-Construction 831 laboratory includes: Mechanical and physical testing of cement; Testing of concrete and heavy concrete mixtures; Testing concrete aggregates and mortar; Laboratory soil mechanical testing; Testing steel metal materials and welded joints; Testing mechanical properties of rubber; Asphalt concrete; Bitumen; Field testing; Testing construction mortar; Mechanical testing of masonry bricks; Physical and mechanical testing of mineral powder materials in B.T.N; Mechanical testing of self-inserting concrete bricks; Mechanical testing of concrete bricks; Bentonite physical and mechanical testing. 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. 344/QD-BXD dated August 31, 2012 of the Minister of Construction.