Crystalline Waterproofing Extends Life of Komotini Power Plant Pedestals

The 484.6 MW combined cycle plant, which has been operational since 2002, relies on its cooling tower pedestals to support essential gas turbine and steam generation infrastructure. Upon detecting concrete degradation, management engaged Penetron Hellas to implement a specialized repair protocol. Theodor Mentzikofakis, Managing Director of Penetron Hellas, noted that the team required a solution capable of meeting rigorous industrial durability standards under tight maintenance schedules.

Technicians began by hydro-blasting the pedestals to remove damaged material and expose deep-seated cracks. The repair process involved applying crystalline surface treatments as a bonding primer and corrosion inhibitor, complemented by the installation of hydrophilic waterstop cords. To address structural voids, crews injected a two-component crystalline grout, while new cast-in-place concrete sections were reinforced with a crystalline admixture. These materials react with moisture to create insoluble crystals within the concrete matrix, a process that enables the structure to self-seal over time and reduces permeability for the remainder of its service life.