Recognition content
The list of testing criteria eligible for specialized construction activities of the LAS-Construction 640 laboratory includes: Testing of cement and adhesives; Testing aggregates for concrete and construction mortar, testing mechanical properties of crushed sand; Testing physical and mechanical properties of crushed sand; Testing lightweight concrete aggregates; Testing masonry; Testing unburnt concrete bricks and self-inserting concrete; Testing lightweight concrete bricks, autoclaved and non-autoclaved aerated concrete bricks; Test tile samples; Terrazo tile testing; Testing of ceramics and sanitary equipment; Testing natural stone cladding and paving; Testing stone cladding and artificial stone paving; Testing tiles and paving; Silicon sealant; Testing cement floor tiles; Putty testing; Bentonite and polymer testing; Testing concrete and mortar; Metal testing and welded joints; Testing spherical bearings, expansion joints, and rubber; Testing construction water samples; Testing of chemical and mineral additives; Testing of fly ash and hardening materials; Testing pipes and fittings; Testing PE, HDPE, SDR-PR pipes; Testing conduits and wires; Test paint samples; Testing waterproof materials; Testing waterproof membranes, rubber gaskets, and water-resistant tapes; Construction glass testing; Testing drywall frames; Testing frames and doors; Testing civil electric wires, cables and accessories; Physical and mechanical testing of soil, rocks, and gravel in the room; Field testing; Asphalt test – liquid asphalt; Asphalt emulsion testing; Testing mineral powder in asphalt concrete; Asphalt concrete testing; Polymer asphalt testing; Experiment with geotextiles, geogrids, absorbent wicks, covers, and oil paper; Testing industrial wood fiberboard, MDF board, plywood board, artificial wood, laminated wood; Testing compact and aluminum panels; Composite panel testing; Natural wood testing; Testing soil-cement mixtures; Testing of return panels, waterproof clay mats, hatching bars. 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 replaces Certificate No. 413/GCN-BXD dated May 4, 2019 of the Ministry of Construction and is valid from the date of issue until May 4, 2024.