Expert panel flags corrosion risk at Mundamveli apartments

Continuous exposure to moisture may lead to progressive corrosion and eventual loss of serviceability of P&T Apartments at Mundamveli unless immediate waterproofing and corrosion-control measures are undertaken, an expert committee has cautioned in its report assessing the structural flaws of the complex and recommending long-term solutions.

The report, ‘Condition, Assessment, and Development of Repair Strategies for Life Mission Housing Complex in Mundamveli’, was prepared by Radhakrishna G. Pillai of the Civil Engineering department, IIT Madras; Elson John, Sachin Paul, and Paul Shaji of the Department of Civil Engineering, Mar Athanasius College of Engineering, Kothamangalam; and Abhilash Joy of Kochi-based Strufocon Engineers Private Limited.

Seventy-eight families residing in the twin apartment blocks have been protesting against persistent leakage since moving in during January 2024. They have also raised concerns about cracks and an alleged tilt in the buildings. It was in this context that the Greater Cochin Development Authority (GCDA), which constructed the towers, commissioned the expert study following State government approval last year after considerable delay.

Most structural and non-structural elements of the apartments lack the detailing and precision necessary to prevent water leakage and ensure water resistance. Moisture ingress from internal sources such as bathrooms and kitchens along with rainwater penetration through external interfaces are the primary causes of corrosion of steel elements and deterioration of surface finishes, the report observed.

The assessment further found that certain structural members do not conform to the requirements of the Indian Standard Code, IS 800:2007, governing steel constructions. “Therefore, structural strengthening of multiple columns and beams is required to make the existing building compliant with IS 800:2007,” it stated. The report added that strengthening was also necessary to support the proposed truss and solar panels.

The recommendations included measures to prevent moisture seepage from internal sources, chloride ingress in concrete slabs, corrosion of structural steel and reinforced concrete components, rainwater penetration through external interfaces, and deterioration of exterior wall and terrace surfaces. Structural strengthening along with installation of the truss and solar panels was also advised.

The report concluded that its validity would lapse if repair works were not completed before December 31, 2026.