705SIDEWALKS ON STRUCTURES

705.01Description

This work shall consist of placing cement concrete sidewalks as an integral part of structures and reinforced concrete bridge approaches in accordance with 105.03.

MATERIALS

705.02Materials

Materials shall be in acco rdance with the following: 10

705.02

Joint Filler.................................................................... 906.01 Reinforci ng Bars .......................................................... 910.01

CONSTRUCTION REQUIREMENTS

705.03Construction Requirements

The concrete shall be placed in the forms in such amount that, after being tamped and struck off, the full required thickness results. Reinforcing bars shall be in 20 accordance with 703.

After floating, the surface shall be marked into uniform rectangles by transverse markings formed with a jointer having 1/4 in. radii, if shown on the plans. On cantilevered sidewalks, a marking shall be placed over the center of each bracket and the space between brackets divided into uniformly marked rectangles as directed.

At expansion joints, the sidewalk and curb shall be cut entirely through and the specified type of joint installed. All edges shall be finished to a 1/4 in. radius.

As soon as finished, the sidewalk shall be cured for no less than 96 h in accordance with 704.06.

The surface shall be checked with a 10 ft straightedge placed parallel to the centerline at sufficient transverse intervals to check the general contour. An acceptable surface shall vary no more than 1/8 in. from the straightedge, except at grade changes, and shall be free from blemishes.

705.04Method of Measurement

Sidewalks on structures and reinforced concrete bridge approaches will be 40 measured by the cubic yard in accordance with the dimensions shown on the plans or as ordered. Reinforcing bars will be measured by the pound in accordance with 703.07.

705.05Basis of Payment

The accepted quantities of sidewalks on structures and reinforced concrete bridge approaches will be paid for at the contract unit price per cubic yard for concrete, C, superstructure. Reinforcing bars will be paid for at the contract unit price per pound in accordance with 703.08.

Payment will be made under: 50

Pay Item Pay Unit Symbol

Concrete, C, Superstructure ....................................................... CYS

705.03