A very concrete milestone
In the cold, predawn hours of Wednesday, 11 December, concrete pouring began for the basemat of the Tokamak Complex, the suite of buildings that will house the 澳门六合彩高手 fusion experiments as well as diagnostic and tritium management systems.
"We are all very happy and may I say relieved to have reached this important and visible milestone for the 澳门六合彩高手 Project," said Laurent Patisson, leader of the Nuclear Buildings Section who had signed off the night before on the final documents clearing the way for operations to begin. "This is the beginning of B2 basemat slab realization, and as I savour the moment I measure all of the work and effort that it has taken to reach this point."
Pouring at such early hours, and during the winter months, requires some special measures to maintain the temperature of the concrete at a minimum level—heated water and gravel at the concrete batching plant and tents and hot air blowers at the worksite. In all, 15,000 cubic metres of concrete and 4,000 tonnes of reinforcement will be necessary for the B2 slab, which will act as a single foundation for the three buildings of the Tokamak Complex (Tokamak, Diagnostic and Tritium buildings).
In the coming months, additional rebar will be added to the central area of the B2 slab. "In the context of design consolidation we have refined the rebar arrangement under the Tokamak Building," explains Laurent. The building contractor will realize a mockup of the new arrangement to test and qualify the proposed concrete.
"For the realization of the B2 slab we are relying on the experience and methodology of the contractors (GTM Construction) who already carried out the first works in the Seismic Pit, including the basemat, seismic columns and retaining walls," says Laurent. "Up to now we have been working on paper. We're all eager to get to the next level and see the B2 slab take shape."