Earthwork samples shall not be less than 5% of the quantity tested by the contractor; Extract at least 3 groups of important parts. The number of follow-up tests shall not be less than 7% of the number of concrete samples tested by the contractor; Earthwork samples shall not be less than 10% of the quantity tested by the contractor. Parallel detection and tracking detection shall be undertaken by testing institutions with the qualifications stipulated by the state. The cost of parallel test shall be borne by the owner.
engineering quality supervision archives
Refers to the form formulated by the quality supervision institution according to the unified regulations on quality supervision of provincial construction projects, which can reflect the process and results of project quality supervision in the process of project construction. Standardizing the collection, arrangement and filing management of engineering quality supervision files can further improve the level of engineering quality supervision and management, make the engineering quality supervision work well documented, and reflect the scientific, fair and authoritative nature of the engineering quality supervision work.
In order to strengthen the management of project quality supervision files, supervision institutions should establish a project quality supervision and management file system, and the project quality supervision files should be managed by information.