Quality inspection of construction works means activities of inspecting and determining the quality of construction products, parts of works or construction works against requirements of designs and technical standards and standards. through experiments, combined with the review and evaluation of the status by visual.

 Target:

- Verification to change the capabilities of the works.

- Inspection to determine the cause of the construction accident.

- Verification for settlement of disputes.

 Method:

- Observe the status quo.

- Check the geometry of the existing components: Measure directly with the iron gauge and clip.

- Measurement of existing concrete protection layer: Made by drilling, chiseling, direct measurement with iron clamp and clamp.

- Check the existing diameter of the reinforcement: Drill, chisel, direct measurement with iron and clamp.

- Check for existing concrete strength: Measurement by bouncing gun or concrete core drilling site and compression test.

- Calculate the structure inspection after upgrading.