What should be done when striking concrete with a handheld vibrating screed?

When striking concrete with a handheld vibrating screed, the proper technique involves striking straight back while ensuring there is enough concrete present to fill any voids. This method allows the screed to effectively level the surface of the concrete while also consolidating the material behind it. By moving straight back, the operator can maintain control and ensure that the screed is not pushing too much concrete ahead, which could create unevenness or leave low spots in the finished surface.

The importance of having enough concrete to fill voids cannot be overstated, as this helps achieve a smooth and uniform surface, critical in flatwork finishing. Adequate material ensures that any air pockets or inconsistencies can be addressed, resulting in a solid, well-finished surface.

Using other techniques such as striking back and forth quickly or in circular motions does not provide the same level of control or effectiveness in producing a level surface with proper consolidation. Furthermore, striking from left to right may not achieve the same uniformity and might lead to issues with finishing quality if not done carefully.