433.1 General Description
This work includes building reinforced concrete approach slabs for bridges on completed and accepted subgrades.
433.1.01 Definitions
General Provisions 101 through 150.
433.1.02 Related References
A. Standard Specifications Section 430—Portland Cement Concrete Pavement Section 441—Miscellaneous Concrete Section 500—Concrete Structures Section 511—Reinforcement Steel Section 621—Concrete Barrier Section 853—Reinforcement and Tensioning Steel B. Referenced Documents General Provisions 101 through 150.
433.1.03 Submittals
General Provisions 101 through 150.
433.2 Materials
Ensure that materials meet these requirements: A. Concrete Use concrete specified as Class A concrete (see Section 500) or pavement concrete (see Section 430). B. Steel Bars for Concrete Reinforcement See Subsection 853.2.01. C. Forms Use steel or wood forms that meet the requirements of Section 430 or Section 500. D. Concrete and Reinforcement Steel Ensure that concrete for approach slabs is proportioned, mixed, placed, and cured according to Section 430 or that it meets the requirements for Class A concrete (Section 500). Place reinforcement steel according to Section 511.
433.2.01 Delivery, Storage, and Handling
General Provisions 101 through 150.
433.3 Construction Requirements
433.3.01 Personnel
General Provisions 101 through 150.
433.3.02 Equipment
General Provisions 101 through 150.
433.3.03 Preparation
General Provisions 101 through 150.
433.3.04 Fabrication
General Provisions 101 through 150.
433.3.05 Construction
Construct the approach slab before placing the adjacent roadway paving, unless otherwise specified in the Plans. A. Approach Slabs Finish, cure, and protect the approach slabs as specified in Subsection 500.3.05.Q, Place Concrete and Subsection 500.3.05.Z.3, Bridge Deck Curing. B. Curbs Construct curbs of the dimensions required monolithic with the approach slab, when specified on the plans. Place, finish, and cure the curb as specified in Section 441. C. Barriers Construct and finish the barriers according to Section 500, Section 621 and Plan details. Use concrete that is Class AA or better and proportioned and mixed according to Section 500. D. Final Finish When the concrete has hardened and standing water and moisture sheen have disappeared, give the concrete a final finish, manually or mechanically, according to requirements in Section 500 for bridge decks.
433.3.06 Quality Acceptance
The riding quality of approach slabs will be tested with the Lightweight Profiler as part of the bridge deck according to Subsection 500.3.06.E, Ride Quality Test.
433.3.07 Contractor Warranty and Maintenance
General Provisions 101 through 150.
433.4 Measurement
The quantity for payment for reinforced concrete approach slabs is the number of square yards (meters) complete in place and accepted. The pay area is computed by the overall length and width of the approach slabs as shown on the plans, with no deductions for areas with end posts and expansion joints.
433.4.01 Limits
Curbs, barriers, and reinforcing steel are not measured for payment, but their cost is included in the price bid for the individual Contract item.
433.5 Payment
The area measured will be paid for at the Contract Unit Price per square yard (meter). Payment will be made under: Item No. 433 Reinforced concrete approach slab Per square yard (meter) Item No. 433 Reinforced concrete approach slab, including curb Per square yard (meter) Item No. 433 Reinforced concrete approach slab, including barrier Per square yard (meter) Item No. 433 Reinforced concrete approach slab, including sloped edge Per square yard (meter)
433.5.01 Adjustments
General Provisions 101 through 150.
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