The list of testing criteria eligible for specialized construction activities of LAS-Construction 57 laboratory includes: Testing of physical and mechanical criteria of soil; Testing of physical and mechanical properties of aggregates for concrete and mortar; Testing of physical and mechanical criteria of cement concrete and cement concrete mixtures; Water chemical analysis; Soil chemical analysis (extracted water); Testing of physical and mechanical criteria of asphalt concrete; Mineral powder for asphalt concrete; Field experiments; 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.
