Super-long seamless concrete slab doped with MAC magnesium high-performance concrete anti-cracking agent

The utility model provides a super-long seamless concrete slab doped with an MAC magnesium high-performance concrete anti-cracking agent, which is formed by pouring a concrete continuous expansion reinforcing band in the middle and shrinkage-compensating concrete sections on two sides, wherein the concrete continuous expansion reinforcing band and the shrinkage-compensating concrete sections are uniformly doped with a concrete anti-cracking agent, and the strength grade of the concrete continuous expansion reinforcing band is higher than that of the shrinkage-compensating concrete sections on the two sides. And the mixing amount of the concrete anti-cracking agent in the concrete continuous expansion reinforcing band is higher than that of the shrinkage compensation concrete sections on the two sides. According to the post-cast strip, structural arrangement of a water stop steel plate, a supporting formwork and the like of a part of the post-cast strip is omitted, working procedures such as cleaning of buildi