Demolition Project-Dry Core for ALC

Demolition Project-Dry Core for ALC

The project involved dry coring on ALC (Autoclaved Lightweight Concrete) panels as part of M&E installation works within a structural framework. ALC panels are widely used for their lightweight, thermal insulation, and fire-resistant properties, making them suitable for partition walls in commercial and industrial buildings.

Due to site constraints and the non-availability of continuous water supply, dry coring technology was selected to ensure a clean, dust-controlled, and efficient drilling process.

Scope of Work

• Preparation:

  • Marking of coring points on ALC wall panels (e.g., Ø100mm, Ø220mm).

  • Safety briefing to workers, ensuring proper PPE (helmets, masks, gloves, harness where required).

  • Positioning of access ladder and work platform for operator stability.

• Execution:

  • Deployment of Baier BDB 829 dry coring machine with diamond core bits suitable for lightweight concrete.

  • Drilling of openings at designated heights to allow passage of M&E service conduits.

  • Controlled dry coring operation with integrated dust extraction to minimize debris dispersion.

  • Ensuring perpendicular alignment of drill to maintain hole accuracy.

• Completion:

  • Verified hole diameters and locations against engineering drawings.

  • Cleared dust and debris from drilled openings.

  • Ready-to-use penetrations for further installation works (electrical conduit, plumbing, etc.).

Machine Utilized – Baier BDB 829

• Type: Dry Core Drilling Machine

• Application: Suitable for lightweight concrete, brick, masonry, and hollow blocks.

• Features:

  • High-power motor for efficient dry coring.

  • Compatible with dust extraction system, ensuring safer working environment.

  • Portable and ergonomic design for overhead and vertical drilling.

On-site Demonstration

During the project, operators performed hands-on coring works on ALC panels.

• Demonstrated drilling precision and dust-controlled operation.

• Showcased machine handling techniques and safe working posture.

• Openings of different diameters (Ø100mm, Ø220mm) were successfully completed.

Outcome

• Successfully cored multiple openings on ALC panels using dry method.

• Achieved accurate hole diameters with minimal surface chipping.

• Work was carried out safely, efficiently, and dust-controlled, ensuring smooth coordination with M&E teams.

Conclusion

The Baier BDB 829 dry coring machine proved to be a reliable and effective solution for working on ALC panels. Its ability to perform dust-minimized, water-free coring made it an ideal choice for indoor environments and tight working conditions.

This project highlighted the machine’s performance and the team’s competency in executing precision dry coring works on lightweight concrete materials.