Recognition content
The list of experimental criteria eligible for specialized construction activities of LAS-Construction 349 laboratory includes: Cement mechanics; Heavy concrete and concrete mixtures; Aggregate for concrete and mortar; Testing construction mortar; Mineral powder materials in asphalt concrete; Fired clay bricks; Lightweight concrete products (autoclaved aerated concrete products, foam, non-autoclaved aerated concrete); Concrete bricks (cement concrete bricks - aggregate); Self-inserting concrete tiles; Terrazzo tiles; Bitumen; Asphalt concrete; Bentonite solution; Metal inspection, welding; Laboratory soil testing; Field testing; Testing construction water. 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 and replaces Decision No. 104/QD-BXD dated March 22, 2011 of the Minister of Construction.