MEIL Achieves Historic Milestone with Record Concrete Pour at Kaiga Nuclear Power Project

Hyderabad: Megha Engineering & Infrastructures Ltd. (MEIL) has achieved a major engineering milestone by successfully completing one of the largest monolithic concrete pours in the history of the Nuclear Power Corporation of India Ltd. (NPCIL) for the Pressurised Heavy Water Reactor (PHWR) programme at the Kaiga Units 5 & 6 Nuclear Power Project in Karnataka.

The operation involved the continuous placement of approximately 7,250 cubic metres of concrete with a reinforcement density of 360 kg per cubic metre, marking a significant construction milestone for the Kaiga nuclear project and MEIL’s maiden assignment in the country’s nuclear power sector.

The successful execution of the large-scale concrete pour demonstrates the company’s engineering capabilities, meticulous planning and execution expertise in one of the most demanding segments of infrastructure development.

To accomplish the operation, MEIL established a temperature-controlled concrete production facility with a capacity of 360 cubic metres per hour, while maintaining the concrete placement temperature at 19°C to meet stringent nuclear construction standards. The company also deployed high-capacity concrete pumps capable of placing 340 cubic metres per hour.

Supporting the operation required extensive infrastructure, including an ice production capacity of 510 tonnes per day, 400 metric tonnes of ice storage, and a combined 2,600 metric tonnes of cement and fly ash storage. MEIL ensured complete availability of all construction materials before commencing the pour, enabling uninterrupted operations throughout the exercise.

The project presented considerable logistical and environmental challenges due to Kaiga’s remote location and heavy monsoon conditions. To mitigate weather-related disruptions, MEIL designed and erected a 75-metre-diameter rain protection system, allowing continuous concreting while safeguarding material quality, worker safety and operational efficiency.

The operation required close coordination across concrete batching, transportation, placement, compaction, testing and curing. Comprehensive Quality Assurance and Quality Control (QA/QC) measures were implemented at every stage to ensure compliance with the rigorous standards prescribed for nuclear infrastructure projects.

A large multidisciplinary workforce comprising engineers, supervisors, quality professionals, surveyors, technicians, equipment operators, safety personnel and skilled workers was deployed in multiple shifts to execute the operation safely and efficiently despite challenging weather conditions.

According to the company, stringent safety protocols were maintained throughout the operation, while all quality inspections and performance tests were carried out in accordance with nuclear-sector requirements to ensure structural integrity and long-term reliability.

The successful completion of the historic concrete pour marks an important milestone in the construction of Kaiga Units 5 & 6 and further strengthens MEIL’s credentials as an engineering company capable of delivering complex, technology-intensive infrastructure projects to global standards.

The achievement also aligns with India’s efforts to expand its indigenous nuclear power programme and clean energy capacity. By contributing to the development of advanced nuclear infrastructure, MEIL said it remains committed to supporting the country’s long-term energy security through innovation, engineering excellence and disciplined project execution.

The company believes the successful execution of its first nuclear project positions it strongly for future opportunities in the nuclear and other critical infrastructure sectors, where precision engineering, quality assurance and large-scale execution capabilities are of paramount importance.