SECTION 40
PORTLAND CEMENT CONCRETE PAVEMENT
301
• Insert material shall be placed by means of a mechanical installation device
which shall vibrate the plastic concrete sufficiently to cause an even flow of
concrete about the insert. The joint material shall be installed so that each end does
not extend beyond the fresh concrete and is within 38 mm {1
1/2
inches}, plus or
minus 25 mm {one inch}, of the corresponding edge of pavement. After
installation of joint material, concrete in the joint area shall be free of segregation,
rock pockets and voids. In addition to the straightedge requirements in Section
40-1.10, "Final Finishing," the finished pavement surface at transverse insert joints
will be tested by means of a straightedge 1.2 m {4 feet} long laid on the pavement
parallel to centerline with its midpoint at the joint. A minimum length of 3.2 m
{10.5 feet} in any 3.6-m {12-foot} length of joint shall not vary from a true plane
enough to permit a 2.5-mm {0.008-foot} thick shim 75 mm {0.25-foot} wide to
pass under the lower edge of the 1.2-m {4-foot} straightedge at any point along its
length.
• Pavement exceeding these tolerances, when tested within 10 days following
placement of concrete, shall be corrected by grinding until the surface does
conform thereto. Pavement surface at transverse insert type joints conforming to
all the provisions in Section 40-1.10, but failing to conform to the 1.2-m {4-foot}
straightedge requirements may be corrected by grinding parallel to joint alignment.
The provisions in Section 40-1.10 for grinding to neat rectangular areas will not
apply to grinding done to comply with 1.2-m {4-foot} straightedge requirements.
Grinding parallel to the transverse joint need not be extended in each lateral
direction to a constant offset from the nearest lane line or edge of pavement nor in
each longitudinal direction so that the grinding begins and ends at lines normal to
the pavement centerline.
40-1.08B(3) Repair of Spalls, Ravelling and Tearing
• Spalls, and ravelling or tearing at sawed joints, shall be repaired as provided in
this Section 40-1.08B(3) prior to opening the pavement to public traffic.
• Any joints or volunteer cracks with spalls more than 15 mm {0.05-foot} deep
which exceed 12 mm {0.04-foot} in width and 0.1-m {0.3-foot} in length that
occur before pavement is open to public traffic, and sawed joints with excessive
ravelling or tearing shall be repaired, but only after removing all weak fractured
concrete and cleaning surfaces to receive the patch. A prime coat of epoxy resin
adhesive conforming to the provisions in Section 95-2.03, shall be applied to the
area to be patched using a stiff bristled brush. A patch consisting of portland
cement concrete or mortar, at the Contractor's option, shall be applied immediately
following the application of the prime coat. An insert, or other means, shall be
used to prevent bonding both sides of planned joints together.
40-1.09 PRELIMINARY FINISHING
• In each day's work the Contractor shall mark the pavement with an approved
stamp. This stamp shall be approximately 0.3-m by 0.6-m {one foot by 2 feet} in
size and shall be furnished by the Contractor at the Contractor's expense. The
stamp mark shall be located 6 m ± 1.5 m {20 ±5 feet} from the transverse contact
joint formed at the start of each day's work and 0.3-m± 0.1-m {1.00±0.25-foot}
from the outside edge of pavement. The stamp mark shall show month, day and
year of placement, and Engineer's station for the transverse contact joint and shall
be oriented so that the stamp mark can be read from a position at the outside edge
of pavement.



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