2436.01
DESCRIPTION.
A.
Construct and install precast noise wall units according to this specification and the contract documents.
B.
Noise walls are precast concrete panels held in place by columns placed on concrete drilled shafts used to reduce noise pollution.
2436.02 A.
MATERIALS. Concrete Drilled Shafts. 1.
Slurry. Comply with Article 2433.02, A.
2.
Concrete. Comply with Article 2433.02, B.
3.
Reinforcing Steel. Shall be epoxy coated and comply with Section 4151.
B.
Precast Noise Wall Panels and Columns. Construct according to Materials I.M. 445.06. Manufacturer must be approved per Materials I.M. 445.06, Appendix A.
C.
Neoprene Bearing Pads and Shims. Neoprene for bearing pads shall be sized as shown in the contract documents and shall have a hardness of 70 durometer. Shims shall provide contact area equal to the neoprene bearing pad. Shims shall have a compressive strength of 5075 psi or greater and shall not rust or rot. Shim material shall be approved by the Engineer.
2436.03
CONSTRUCTION.
Precast Noise Wall
A.
B.
2436.03
Concrete Drilled Shafts. 1.
Construction Tolerances. Comply with Article 2433.03, A, of the Standard Specifications, with the following exceptions:
inches from the plan top of shaft elevation. Ensure sufficient reinforcement bar splice length for splices above the shaft.
2.
Control and Disposal of Materials. Comply with Article 2433.03, C.
3.
Shaft Excavation. Comply with Article 2433.03, D, with the following exceptions:
4.
Final Cleaning.
bottom of the shaft with a weighted tape.
5.
Excavation Inspection. Comply with Article 2433.03, G.
6.
Reinforcing Steel Cage Construction and Placement. Comply with Article 2433.03, H.
7.
Concrete Placement. Comply with Article 2433.03, I, except that rock sockets shall not apply.
Precast Noise Wall. 1.
Concrete Columns. Place concrete columns as follows:
documents, prior to concrete placement, unless temporary casing is used.
be within a 1/2 inch of that shown in the contract documents.
elevation shown in the contract documents.
plastic shaft concrete a maximum of 5 feet. Confirm correct location of reinforcing steel cage after removal of temporary casing and before setting the concrete column in the plastic shaft concrete. Vibrate around embedded concrete columns to consolidate the plastic concrete without causing segregation.
2436.05
Precast Noise Wall
2.
Wall Panels. Place wall panels on neoprene bearing pads between concrete columns as shown in the contract documents. Do not trim precast wall panels for fit.
2436.04METHOD OF MEASUREMENT
Quantity of Precast Noise Wall will be the quantity, in square feet, shown in the contract documents. 2436.05
BASIS OF PAYMENT.
A.
For the number of square feet of Precast Noise Wall shown in the contract documents, Contractor will be paid the contract unit price per square foot. This payment is full compensation for furnishing and erecting precast noise wall, including panels, columns, and concrete drilled shafts according to the contract documents.
B.
Any additional length of drilled shaft required by Engineer due to unsuitable conditions at proposed shaft tip elevations will be paid according to Article
1109.03, B
This work consists of various types according to the requirements of the sections listed below. Comply with the lines, grades, and dimensions shown in the contract documents or established by the Engineer. 2501. Piles and Pile Driving. 2502. Subdrains. 2503. Storm Sewers. 2504. Sanitary Sewers. 2505. Guardrail Construction and Removal. 2506. Flowable Mortar. 2507. Concrete and Stone Revetment. 2508. Removal of Paint and Painting Steel Bridge Structures. 2509. Cleaning, Surface Preparation, and Painting of Galvanized Surfaces. 2510. Removal of Pavement. 2511. Removal and Construction of Sidewalks and Recreational Trails. 2512. Portland Cement Concrete Curb and Gutter. 2513. Concrete Barrier. 2514. Curb Removal. 2515. Removal and Construction of Paved Driveways. 2516. Combined Concrete Sidewalk and Retaining Wall. 2517. Railroad Approach Sections. 2519. Fence Construction. 2520. Field Laboratory and Field Office. 2521. Certified Plant Inspection. 2522. Tower Lighting. 2523. Highway Lighting. 2524. Highway Signing. 2525. Traffic Signalization. 2526. Construction Survey. 2527. Pavement Marking. 2528. Traffic Control. 2529. Full Depth Finish Patches. 2530. Partial Depth Finish Patches. 2531. Pavement Surface Repair (Milling). 2532. Pavement Surface Repair (Diamond Grinding). 2533. Mobilization. 2534. Delivery of Samples. 2535. Bin Type Crib Walls. 2536. Asbestos Removal. 2537. Underground Tank System Removal and Petroleum Contaminated Soil Remediation. 2538. Salvage, Removal, and Disposal of Obstructions. 2539. Concrete Pavement Undersealing by Pressure Grouting. 2540. Longitudinal Joint Repair. 2541. Crack and Joint Cleaning and Sealing (HMA Surfaces). 2542. Crack and Joint Cleaning and Filling (Portland Cement Concrete Pavement). 2543. Transverse Joint Repair for HMA Pavements. 2544. Cleaning and Filling Cracks for HMA Surfaces. 2545. Overlay of Type "B" Guide Signs.
2501.03
Piles and Pile Driving
2546. Gabions and Revet Mattresses. 2547. Temporary Stream Access. 2548. Milled Shoulder Rumble Strips - HMA or PCC Surface. 2549. Pipe and Manhole Rehabilitation. 2550. Night Work Lighting. 2551. Crash Cushions. 2552. Trench Excavation and Backfill. 2553. Trenchless Construction. 2554. Water Mains, Valves, Fire Hydrants, and Appurtenances. 2555. Deliver and Stockpile Salvaged Materials. 2556. Dowel Bar Retrofit.