Recognition content
The list of testing criteria eligible for specialized construction activities of LAS-Construction 71 laboratory includes: Physical and mechanical testing of cement; Aggregate testing for concrete and mortar; Testing construction mortar; Heavy concrete and concrete mixtures; Laboratory soil mechanical testing; 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; Testing paint materials; Testing rubber pillows and expansion joints; Bentonite mechanical testing; Field of mechanical testing of self-inserting concrete bricks; Field of mechanical testing of concrete bricks/unburnt bricks; Testing of physical and mechanical criteria of masonry bricks; Terrazo tile test; Testing of cement floor tiles/ Granito tiles; Testing of refractory bricks; Physical and mechanical testing of tiles - natural/artificial stone tiles; Testing autoclaved aerated concrete brick products; Testing of foam concrete bricks and non-autoclaved aerated concrete; Putty testing; Construction glass testing; Testing of geotextiles - absorbent wicks and absorbent wick covers; Testing waterproofing panels and clay mats; Water testing for construction; Testing chemical additives and active mineral additives for concrete and mortar; Testing of soil and stone reinforced with adhesive; Testing soil-cement mixtures; Testing reinforced concrete sewers: round sewers and box sewers; Testing PVC and HDPE pipes; Testing the physical and mechanical properties of elastic waterproofing polymer tape; Concrete sleepers.
Technical standards used for tests are fully listed, including Vietnamese and foreign standards (if any). When there is a new version of a technical standard replacing the old standard, the corresponding new standard must be applied.
This Certificate is valid for 05 years from the date of issue and replaces Certificates No. 863/GCN-BXD dated December 18, 2018 and No. 255/GCN-BXD dated August 30, 2022.