Slipform Construction of 155-meter Chimney at Masinloc Power Plant

Case Study

Slipform construction of 155-meter Chimney at Masinloc Power Plant

As part of the Masinloc Power Plant Expansion in Zambales, Philippines, Balanced Engineering & Construction (BEC) was commissioned to design and construct a 155-meter single-flue environmental compliance chimney, a mission-critical component of the 335 MW thermal plant. This project contributes to the broader energy security strategy of the Philippines by enhancing base-load capacity.

The chimney was engineered using a vertical slipforming process, integrating structural steelwork, flue liners, roofworks, and mechanical & electrical systems, all under BEC’s turnkey delivery model.

Challenges

Complex Foundation Design: Designing foundations for a 155-meter-high chimney required geotechnical precision, high-load capacity detailing, and strict settlement controls to ensure long-term structural integrity.

Slipform Tolerance and Wind Exposure: Maintaining vertical accuracy over 155 meters during slipforming required continuous monitoring and real-time adjustment, particularly during periods of seasonal typhoons and elevated wind conditions.

BEC's approach

From structural concrete slipforming to final mechanical and electrical installations, BEC provided a one-stop solution, managing design coordination, fabrication, and installation under strict quality and safety standards.

What we delivered:

  • Detailed design and engineering works
  • Slipform design for 155-meter single-flue chimney
  • Fabrication and installation of internal steelwork and access systems
  • Installation of flue liner and corrosion protection systems
  • Roof structure and ventilation components
  • Supply and installation of a rack and pinion access hoist
  • Mechanical and electrical systems, including access lighting, lightning protection, and aviation lights
  • Project management, quality assurance, and safety compliance throughout all phases

The BEC Advantage

BEC successfully delivered the 155-meter environmental compliance chimney on time, within budget, and with zero lost time injuries. The structure met all performance and alignment specifications, enabling seamless integration into the Masinloc Unit 4 commissioning schedule. Through disciplined slipform execution, integrated engineering delivery, and stringent quality controls, BEC reinforced its reputation as a trusted partner for complex vertical infrastructure in the energy sector.

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Projects Details:
Owner

SMC Global Power Holdings Corp

Client

Formosa Heavy Industries (FHI)

Location

Philippines

Completed

March, 2025