the finished surface of the blockwork on completion of the construction shall comply with the following tolerances
level +_ 25 mm
Maximum deviation from 3 m straight edge 5 mm
The algebraic differenc of the deviations
From the specified level at any two points
Less than 50 mm apart shall not exceed 20 mm
Blockwork that fails to comply with these requirements shall be talen uq and retd
Gaps of less than 40 mm at edge shall be filled with a 4 to 1 sand/cementmo/tar