

The concrete on the cast-in-situ roof slab surface must have certain impermeability requirements. Generally, impermeability concrete is selected. In order to ensure the concrete mixing quality, the requirements for the mixing capacity of aggregate and truck pump with mixer are stricter. In addition to the reasonable aggregate grading, the mixing technology of truck pump mixing should also be very excellent, to increase the workability of concrete.
During the concrete pouring of inclined roof, especially steep inclined roof, the biggest problem is the concrete sliding flow caused by local segregation and result in concrete quality problems. During pouring, the falling height of concrete shall not be greater than 600mm. With the excellent mixing technology built-in in our truck pump with mixer, even in the construction of inclined roof, there will be no blockage of concrete outlet, or the inclined surface cannot be set quickly due to uneven discharge, which will affect the construction period. After construction, the inclined surface of the roof is flat, beautiful and short setting time.