Common Mistakes to Avoid When Constructing Practical Columns

Practical columns are elements that help tie together and stabilize masonry walls. Although relatively small compared to primary structural columns, their construction must still be executed precisely to ensure they function as intended.

Errors during construction can compromise the quality of practical columns and increase the risk of cracks or other wall issues. Here are several mistakes to avoid:

1. Ignoring Construction Drawings
A common mistake is determining the dimensions, spacing, or details of practical columns based solely on on-site habits.

Every building has unique conditions. Therefore, work should strictly follow the established construction drawings and technical specifications.

2. Using Improper Reinforcement
The diameter and number of main reinforcement bars, as well as the size and spacing of stirrups, must adhere to the design specifications.

Reducing the size or quantity of reinforcement without technical justification can compromise the quality of the practical column.

3. Incorrect Stirrup Spacing
Stirrups serve to maintain the position of the main reinforcement bars and form the reinforcement cage.

Installing stirrups with incorrect dimensions or spacing can result in reinforcement details that do not meet design requirements.

4. Failure to Maintain Reinforcement Position
Reinforcement must be positioned correctly and have adequate concrete cover.

Reinforcement placed too close to the surface is more susceptible to corrosion, while improper positioning can affect the quality of the concrete element.

5. Neglecting Concrete Quality
The concrete mix for practical columns must be prepared according to specified requirements.

Using unsuitable materials, inconsistent proportions, or poor mixing techniques can affect the concrete's strength after hardening.

6. Suboptimal Concrete Compaction
Concrete that is not properly compacted can leave voids or "honeycombing" inside the column.

This condition can reduce concrete quality and result in a porous-looking column surface.

7. Unstable Formwork
Unstable or improperly installed formwork can shift when concrete is poured.

Consequently, the dimensions and position of the practical column may deviate from the intended design. 8. Neglecting the Connection to the Wall
Practical columns must be integrated with the masonry wall in accordance with construction details.

If the connection between the column and the wall is not executed correctly, the wall's binding function and stability may be compromised.

9. Column Position Not Matching the Plan
Errors in determining the position of practical columns can result in excessively long wall sections or suboptimal detailing around openings.

Therefore, column positions must be determined during the planning stage and coordinated with the locations of doors, windows, and the main structure.

10. Mistaking Practical Columns for Structural Columns
This is a mistake that must be avoided.

Practical columns serve to reinforce and maintain wall stability, whereas main structural columns are designed to support the building's loads.

The two serve different functions and roles within the construction system.

How to Avoid Mistakes
To ensure the proper construction of practical columns, make sure to:

Follow working drawings and technical specifications.

Use materials that meet standards.

Ensure reinforcement installation matches the details.

Use sturdy and stable formwork.

Perform concrete casting and compaction correctly.

Pay attention to the connection between the practical column, the masonry wall, and the main structure.

Conduct inspections during the construction process.

Conclusion
Errors in constructing practical columns can affect wall quality and stability. Issues ranging from incorrect reinforcement and poor concrete quality to errors in positioning and wall connections must be avoided during the execution phase.

Practical columns should be constructed based on working drawings and technical plans, rather than simply following common practices on-site. With proper workmanship and the use of quality materials, practical columns can perform their functions optimally.

Contact PT Intisumber Bajasakti for Construction Material Needs
If you require practical columns, rebar, wire mesh, cement, red bricks, lightweight bricks, or various other iron and steel materials, PT Intisumber Bajasakti (ISBS) is ready to help meet the material needs for various construction projects. For product information, specifications, stock availability, or price quotes, please contact us via:

📞 Phone: 021-66675999
🌐 Website: https://www.intisumberbajasakti.com
✉️ Email: info@intisumberbajasakti.com

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