INJECTION APPARATUS AND METHOD FOR MIX CONCRETE THAT HAVE BEEN UNDERGOING PROCESS OF MIXING AND DISSIPATING AIR AND MIXING MATERIALS ON COMMON CONCRETE

摘要

The present invention relates to a device and a method for injecting mixed concrete. The method of the present invention comprises a step of mixing air and a powder admixture to normal concrete and dissipating the same. High fluidity concrete with good fluidity is formed by supplying air as much as 20-40% of a volume to the normal concrete. The powder admixture is added into the high fluidity concrete to form mixed concrete, and the mixed concrete is discharged through an injection unit. When the mixed concrete is injected, air contained in the mixed concrete can be dissipated and discharged by high pressure air.