🔍 QUALITY ASSURANCE (QA) vs. QUALITY CONTROL (QC)

Quality Assurance and Quality Control are closely related, but they serve different purposes in construction.

🔹 1. Quality Assurance (QA)

QA focuses on the processes and systems established to prevent quality problems and ensure that work is planned and performed according to requirements.

Examples:

- Establishing a project quality management plan.
- Preparing inspection and test plans.
- Defining responsibilities and approval procedures.
- Ensuring that suitable procedures are available.

🔹 2. Quality Control (QC)

QC focuses on inspecting, measuring, testing, and verifying that materials and completed work meet specified requirements.

Examples:

- Inspecting reinforcement before casting.
- Checking dimensions and levels.
- Testing concrete samples.
- Verifying installed materials against specifications.

🏗️ Practical Example

QA establishes the required concrete inspection and testing procedures.

QC carries out the specified inspections and tests and records the results.

📌 Both systems are important for construction quality, but neither replaces sound engineering design or competent workmanship.

@ETCONp

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