Concrete dome built at UAE's Barakah nuclear plant
Korea's KEPCO, a Hyundai-Samsung JV, and Seoyong Construction worked with ENEC to construct the dome, weighing 9,000 metric tonnes
The UAE's Emirates Nuclear Energy Corporation (ENEC) announced construction completion of a concrete dome for its Unit 2 Reactor Containment Building (RCB).
Unit 2 is one of the four which make up the UAE's Barakah Nuclear Power Plant (NPP), under construction in Abu Dhabi's Western Region.
The dome is the final structural component of Unit 2's RCB, which is now over 70 metres tall.
RCBs are typically robust in design, and are built using thick concrete walls and heavy reinforcement steel.
Unit 2's RCB comprises the nuclear reactor, and is a critical structure in the nuclear plant's defense-in-depth barriers.
ENEC’s teams worked with Korea Electric Power Corporation (KEPCO), a Hyundai-Samsung joint venture (HSJV), and Seoyong Construction to construct the RCB.
The dome measures 51.4m in diameter, is 24m high, and weighs 9,000 metric tonnes.
Its construction was phased into nine stages.
The next phase of work on the RCB will involve the installation of a containing post-tensioning system, used to pre-stress the concrete structure.
A three-month structural integrity test will follow.
Remarking on the dome's construction completion, Mohamed Al Hammadi, CEO of ENEC, said: "With the completion of the dome for Unit 2, we are proud to have maintained our track record of safety and efficiency.
"The construction of nuclear energy plants is immensely complex and not only involves highly technical infrastructure but thousands of people working under the highest standards of safety, security and quality," he added.
Unit 1 of Barakah NPP is over 87% complete, Unit 2 is 68% complete, Unit 3 is 47% completion, and Unit 4 is 29% complete.
The project's overall completion stands at 62%, according to WAM.
Pending regulatory approval, the four units in Barakah are scheduled to be delivered by 2020.