PROCEDURE FOR TAKING SAMPLES AT SITE
Samples for all tests in the first-tier QC testing shall be taken in the presence of an officer not below the rank of the Overseer in charge. Photographs in which departmental officers and Contractor’s representative are present may be taken during sampling of items and kept as a record. There shall be a separate module for Quality Control in the PRICE software for recording the photographs and test results. The photographs shall be uploaded on the very next day of sampling. After sampling, the Overseer in charge shall make entries regarding the samples taken in the QC register at the earliest. The entries in the QC register shall be duly checked and attested by the Assistant Engineer. Samples taken shall be kept in sealed bags and these bags shall be opened only at the time of testing. The samples which require curing shall be kept for curing at the site itself. The responsibility for sealing the bags shall vest with the Assistant Engineer/Overseer. The responsibility for keeping the sealed samples under safe custody and curing shall vest with the Contractor. The Overseer shall ensure that the curing of the sample is done properly. Samples for second-tier testing shall be taken from site by an officer not below the rank of an Overseer of the QC wing. If samples taken are kept at the site for curing, the same procedure detailed for first-tier testing shall be followed. An acknowledgement for receipt of the sample shall be obtained by the QC wing from the Contractor or his representative, to ensure that he will keep the sample under safe custody. Photographs of sampling shall be taken by the officer entrusted to take the sample. The photograph shall be uploaded in the PRICE software by the Assistant Executive Engineer of the concerned QC laboratory on the very next day.
Sample Collection
Sample Core Cutting Machine
Cube Samples - Concrete strength Testing - after 28-days
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