703.01 692 SECTION 703 – CEMENT CONCRETE DITCH PAVING
703.01 Description ................................ ................................ ................... 692
703.02 Materials ................................ ................................ ...................... 692
703.03 Equipment ................................ ................................ .................... 693
703.04 Preliminary Work ................................ ................................ ......... 693
703.05 Subgrade Preparation ................................ ................................ ... 693
703.06 Joints ................................ ................................ ............................ 694
703.07 Limitations on Mixing ................................ ................................ .. 694
703.08 Mixing, Placing, and Finishing Concrete ................................ ..... 694
703.09 Protection and Curing ................................ ................................ .. 694
703.10 Backfilling ................................ ................................ .................... 694
703.11 Final Cleanup ................................ ................................ ............... 694
703.12 Method of Measurement ................................ .............................. 695
703.13 Basis of Payment ................................ ................................ .......... 695
DESCRIPTION
703.01 Description
This work consists of constructing paved ditches of Portland cement concrete on a prepared subgrade. MATERIALS
703.02 Materials
Provide materials that meet the applicable requirements of 604. For Portland cement concrete ditch paving, use Class A concrete meeting the requirements of 604. 703.03 693 EQUIPMENT
703.03 Equipment
A.Forms Use forms of either wood or metal that meet 701.03.A. To shape the top surface of the paved ditch, use a strikeoff template having the same form and shape as the ditch section.
B.Compaction Equipment Compact the subgrade using tamping or rolling equipment that will produce the required compaction and shape.
C.Mixing and F inishing Equipment Use mixers that meet 604.04. Mechanical ditch paving machines may be used when approved by the Engineer. Provide finishing equipment, including satisfactory floats, edgers, spades, and tamps. CONSTRUCTION RE QUIREMENTS
703.04 Preliminary Work
Perform Clearing and Grubbing, Removal of Structures and Obstructions, Excavation and Undercutting, and Embankment Construction as specified in 201, 202, 203, and 205, respectively.
703.05 Subgrade Preparation
Prepare subgrade for ditch paving to the required depth and to a width that will allow the install ation and bracing of forms. Shape and compact the subgrade to a firm, even surface, in reasonably close conformity with the grade and section shown on the Plans or as directed by the Engineer. Remove all soft and yielding material, replace it with accept able material, and compact as directed by the Engineer. 703.06 694 703.06 Joints Form joints at the intervals and locations shown on the Plans. Cut joint filler for expansion joints to the full depth of the ditch pavement.
703.07 Limitations on Mixing
Comply with 604.12.
703.08 Mixing, Placing, and Finishing Concrete
Mix concrete as specified in 604.13. Before placing concrete , prepare the subgrade and forms as specified in 701.05. Place the concrete immediately after mixing . After spading the edges and allowing the concrete to thoroughly consolidate, use a wooden float to give the surface a smooth and even finish. Round the edges of the paved ditch to a radius of ½ inch, and finish edges along expansion and contraction joints with an edging tool having a radius of not over ¼ inch. Remove all edging tool marks with a float and brush.
703.09 Protection and Curing
Immediately after finishing the concrete, cure it as specified in 501.18. Protect the ditch paving until final acceptance of the Project . Remove concrete that is damaged prior to acceptance by removing and reconstructing the damaged sections at no cost to the Department.
703.10 Backfilling
Immediately after the concrete has set sufficiently and the forms have been removed, fill the spaces on each side of the ditch paving with sui table material and compact thoroughly; or, if sod is specified, lay it in accordance with 803.
703.11 Final Cleanup
Perform final cleanup as specified in 104.10. 703.12 695 COMPENSATION
703.12 Method of Me asurement
The Department will measure Portland Cement Concrete Ditch Paving for payment by the cubic yard, complete in place. The volume per linear foot of length will be obtained from the dimensions shown on the Plans. Linear measurements will be surfa ce measurements taken along the centerline of the paved ditch. Unless otherwise shown on the Plans, the Department will consider subgrade preparation, backfill, and expansion joint materials to be incidental to the work.
703.13 Basis of Payment
The Depar tment will pay for accepted quantities, complete in place, at the contract prices as follows: Item Pay Unit Portland Cement Concrete Ditch Paving Cubic Yard Such payment is full compensation for all subgrade preparation, backfill, and all other incidentals necessary to complete the work. 705.01 696 SECTION 705 – GUARDRAIL
705.01 Description ................................ ................................ ................... 696
705.02 Materials ................................ ................................ ...................... 696
705.03 Reserved ................................ ................................ ....................... 697
705.04 Prelimin ary Work ................................ ................................ ......... 697
705.05 Posts ................................ ................................ ............................. 697
705.06 Installation of Posts ................................ ................................ ...... 697
705.07 Erection ................................ ................................ ........................ 699
705.08 Final Cleanup ................................ ................................ ............... 699
705.09 Me thod of Measurement ................................ .............................. 699
705.10 Basis of Payment ................................ ................................ .......... 700
DESCRIPTION
705.01 Description
This work consists of furnishing and erecting guardrail, and constructing anchor blocks and approach ends, of the specified kind and dimensions. Guardrail includes appurtenant materials and work required to make connections with other guardrail or structures, as may be required to complete the Work shown on the Plans. MATERIALS
705.02 Materials
Provide materials as specified in: Metal Beam Guardrail ................................ ............................ 909.05 Guardrail Posts ................................ ................................ ....... 909.07 Guardrail Hardware ................................ ............................... 909.08 Use Class A Portland cement concrete. Mix, place, finish, and cure concrete as specified in 604.
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 701–704 of 1,072.