TOLERANCE FOR FINISHED FORMED CONCRETE SURFACES
All other conditions ........................ 10 mm in 3000 mm
(2)
Abrupt variation
The offset between concrete surfaces under adjacent pieces of
formwork for the following classes of surface: (For Class A-HV,
positive means raise of elevation in the direction of waterflow,
negative means drop of elevation in the direction of waterflow)
*Class A-HV, in the
direction of waterflow ........................... +0 mm
........................... -3 mm
perpendicular to the
direction of waterflow ............................ 3 mm
Class
A
................................................ 3
mm
Class
B
................................................ 6
mm
Class
C
................................................ 6
mm
Class
D
............................................... 25
mm
*Includes any high-velocity flow surface.
(3)
Gradual variation
Surface finish tolerances as measured by placing a freestanding
(unleveled), 1.5 m straightedge for plane surface or curved
template for curved surface anywhere on the surface and
allowing it to rest upon two high spots within 72 hr after concrete
placement. The gap at any point between the straightedge or
template and the surface shall not exceed:
*Class
A
(including Class A-HV) ......................... 3
mm
Class
B
................................................ 6
mm
Class
C
............................................... 13
mm
Class
D
............................................... 25
mm
*Includes any high-velocity flow surface.
TOLERANCES FOR CAST-IN-PLACE, VERTICALLY SLIPFORMED
BUILDING ELEMENTS
(1) Translation and rotation from a fixed point at the base of
the structure:
For heights 30 m or less ............................... 50 mm
For heights greater than 30 m,
1/600 times the height but not more than .............. 205 mm
(2)
Lateral alignment
Between adjacent elements .................................. 50 mm
(3)
Cross-sectional dimensions
SECTION 03700
Page 21
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