Material Quality control and production quality control process

Material Quality control and production ** quality control process (QA/qc) ** à Construction Quality Control Process: It is very important to have a good quality control process on a project. Depending on the project or the client or executing agent for construction the QC/QA process could be very proscriptive. A government organization like the Corps of Engineers or DOT will have very clear guidance on what is required per contract as far as the QA/QC goes. QC – Usually the contractor(or a third party) is responsible for performing Quality Control (QC) which is ultimately just making sure that they are completing the work safely and in compliance with the contract. QA – Usually the Government or outside third party is responsible for performing Quality Assurance (QA). QA is spot checking contract compliance, test results, and ultimately just making sure that the Quality Control Processes is working. à Quality Control (QC) – Depends on the contract but best practices require; • The Construction Contract defines the quality standards and the QC testing requirements • The contractor must prepare a detailed quality control plan for each definable feature of work detailing how the quality standards will be achieved. The plan must be approved before work can begin. • The contract requires that the QC testing lab be validated by the approved source • Employs Three-Phase Inspection System – Preparatory : Before the work starts the QC manager conducts a meeting to go over all the approved submittals, work plan, safety plan, etc with all parties involved in order to make sure the feature of work is ready to begin and makes sure everyone is on the same page. – Initial: As the work is beginning the QC manager conducts an inspection of the work to make sure the work is being performed as plan. The crew is working safely and with the correct material. – Follow-up: Throughout the work the QC manager conducts inspection as per contract and as required. • Document QC activities into a Management System which includes; 1. Non compliance Reports 2. RFIs (Request for information) 3. Change orders requests 4. Safety violations 5. Daily field reports 6. Test results 7. Permits 8. Close Documents 9. QA/QC plan - Testing program Quality Assurance : Usually done by a third party or the Government • Performed to ensure the contractor’s QC system is functioning properly • QA testing at least 5% frequency of QC testing • QA surveys spot check TBMs, baselines and grade shots • Specific QA Plan developed for each contract www. learncivilengineering. com