Government.
c. Bumps ("Must Grind" Areas): Any bumps ("must grind" areas) shown
on the profilograph trace which exceed 10 mm 0.4 inch in height shall
be reduced by diamond grinding in accordance with subparagraph "Areas
Defective In Plan Grade Or Smoothness" until they do not exceed 7.5 mm
0.3 inch when retested. Such grinding shall be tapered in all
directions to provide smooth transitions to areas not requiring
grinding.
1.5.6
Edge Slump and Joint Face Deformation
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NOTE: Delete this series of paragraphs if no
pavements are 250 mm (10 inches) or more in
thickness or if slipform paving is not allowed.
**************************************************************************
1.5.6.1
Edge Slump
When slip-form paving is used, not more than 15.0 percent of the total free
edge of each pavement lot shall have an edge slump exceeding 6 mm 1/4 inch
and none of the free edge of the pavement lot shall have an edge slump
exceeding 9 mm 3/8 inch as determined in accordance with the measurements
specified in paragraph: "Determination of Edge Slump". (The total free
edge of the pavement will be considered to be the cumulative total linear
measurement of pavement edge originally constructed as non-adjacent to any
existing pavement; i.e., 30 m 100 feet of pilot lane originally constructed
as a separate lane, will have 60 m 200 feet of free edge; 30 m 100 feet of
fill-in lane will have no free edge, etc.,). The area affected by the
downward movement of the concrete along the pavement edge shall not exceed
450 mm 18 inches back from the edge.
1.5.6.2
Joint Face Deformation
In addition to the edge slump limits specified above, the vertical joint
face shall have a surface within the maximum limits shown below:
Offset from
Offset from
Offset From
Abrupt
Offset of
Straightedge
Straightedge
Straightedge
Offset
Joint Face
Applied
Applied
Applied
in Any
From True
Longitudinally
Longitudinally
Top to Bottom
Direction Vertical
To Pavement Surface
To Vertical
Against the
Face
Joint Face
_________________________________________________________________________________
Airfield Pavement
3 mm
6 mm
9 mm
3 mm
8 mm/100 mm
(1/8 in)
(1/4 in)
(3/8 in)
(1/8 in)
(1 in/12 in)
All other Pavement
6 mm
All other items same as airfield pavement
(1/4 in)
All other items same as airfield pavement
1.5.6.3
Determination of Edge Slump and Joint Face Deformation
Immediately after the concrete has hardened sufficiently to permit walking
thereon, the pavement surface of each lot shall be tested by the
SECTION 02753
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