CONCRETE WORK
PREPARATION AND PLANNING
SITE PREPARATION
MATERIALS AND EQUIPMENT
INSTALLATION
- Verify mix design and quantity.
- Prepare forms and reinforcement.
- Ensure subgrade is level and compacted.
- Begin pouring at the furthest point from the exit.
- Use a chute or pump for controlled flow.
- Insert vibrator vertically into the mix.
- Avoid over-vibration to prevent segregation.
- Consolidate around edges and corners thoroughly.
- Move vibrator slowly through the concrete.
- Use a mechanical vibrator for large pours.
- Check ambient temperature and humidity.
- Use thermal blankets if necessary.
- Avoid pouring in extreme heat or cold.
- Monitor for rain or wind during placement.
- Document weather conditions for records.
- Use a float to level the surface.
- Apply a trowel for a smooth finish.
- Consider joint placement for expansion and contraction.
- Use curing compounds to retain moisture.
- Finish edges carefully to prevent chipping.
CURING AND PROTECTION
- Use wet burlap or cotton mats
- Apply curing compounds that seal moisture
- Mist concrete surfaces regularly with water
- Cover with plastic sheeting to prevent evaporation
- Maintain curing for at least 7 days for optimal strength
- Erect windbreaks to shield from strong winds
- Use tarps or covers during rain or snow
- Ensure shade for high-temperature days
- Monitor ambient temperature and adjust protection as necessary
- Avoid direct sunlight to minimize rapid drying
- Wait at least 24-48 hours after pouring
- Check for initial set before removal
- Use a pry bar gently to loosen forms
- Remove forms in cooler, less humid conditions
- Inspect for any signs of damage during removal
QUALITY CONTROL AND INSPECTION
- Perform slump tests immediately after mixing.
- Prepare cylinder samples in accordance with ASTM standards.
- Label and date all samples accurately.
- Store samples in a controlled environment.
- Test cylinders at specified curing times.
- Examine surfaces for cracks, spalling, and voids.
- Check for proper finishing techniques.
- Assess uniformity of color and texture.
- Document any defects with clear photographs.
- Notify the contractor of any issues immediately.
- Review project specifications thoroughly.
- Verify material certifications and compliance documents.
- Cross-check work against relevant codes and standards.
- Conduct periodic audits of construction practices.
- Engage third-party inspectors if necessary.
- Create a detailed inspection report for each activity.
- Include date, time, and personnel involved.
- Maintain a centralized log of all inspections.
- Store documents digitally and physically for ease of access.
- Review documentation for accuracy and completeness.
Use in Manifestly