701.01 681 SECTION 701 – CEMENT CONCRETE SIDEWALKS, DRIVEWAYS AND MEDIAN PAVEMENT
701.01 Description ................................ ................................ ................... 681
701.02 Materials ................................ ................................ ...................... 681
701.03 Equipm ent ................................ ................................ .................... 682
701.04 Preliminary Work ................................ ................................ ......... 682
701.05 Subgrade Preparation ................................ ................................ ... 682
701.06 Expansion Joints ................................ ................................ .......... 683
701.07 Limitations on Mixing ................................ ................................ . 683
701.08 Mixing and Placing Concrete ................................ ....................... 683
701.09 Finishing ................................ ................................ ...................... 683
701.10 Protection and Curing ................................ ................................ .. 684
701.11 Backfilling ................................ ................................ ................... 685
701.12 Final Cleanup ................................ ................................ ............... 685
701.13 Method of Measurement ................................ .............................. 685
701.14 Basis of Payment ................................ ................................ .......... 686
DESCRIPTION
701.01 Description
This work consists of constructing, on a prepared subgrade, Portland cement concrete Sidewalks, Driveways, and Median Pavement, excluding those Sidewalks, Driveways, and Median Pavement that are integrally part of structures. MATERIALS
701.02 Materials
Provide materials as specified in: Preformed Joint Filler ................................ ............................ 905.01 Cement Concrete Curing Materials ................................ ............ 913 Drain Pipe, Standard Strength ................................ ............... 914.04 701.03 682 To construct sidewalks, driveways, and median pavement, use Class A concrete meeting the requirements of 604. EQUIPMENT
701.03 Equipment
A.Forms Use forms of wood, metal, or other suitable material. Extend forms for the full depth of the concrete. Only use forms that are true to line, free from warp, and of sufficient strength to resist the pressure of the concrete without spri nging. On all radial sections, use curved forms of proper radius and that are of a design acceptable to the Engineer. Brace and stake forms to ensure that they will remain in both horizontal and vertical alignment until their removal.
B.Mixing and Finishin g Equipment Use mixers that meet 501.04.B. Furnish satisfactory floats, templates, straightedges, edgers, spades, and tamps. Compact the subgrade using tamping or rolling equipment that will produce the desired results. Instead of using forms, the Contractor may use a slip form paver that will produce the required results. CONSTRUCTION REQUIREMENTS
701.04 Preliminary Work
Perform Clearing and Grubbing, Removal of Structures and Obstructions, Excavation and Undercutting, and Em bankment Construction as specified in 201, 202, 203, and 205, respectively.
701.05 Subgrade Preparation
Prepare subgrade for sidewalks, driveways, and median pavement to the required depth and to a width that will allow for the installation and bracing of the forms. Shape and compact the subgrade to a firm, even surface in 701.06 683 reasonably close conformity with t he grade and cross -section shown on the Plans. Remove all soft and yielding material, replace it with acceptable material, and compact it as directed by the Engineer.
701.06 Expansion Joints
Unless otherwise shown on the Plans or directed by the Engineer, place premolded expansion joint filler, 1 inch in thickness, at the locations and in line with expansion joints in the adjoining pavement, gutter, or curb. Cut all premolded expansion joint filler to the full width or length of the proposed construction and extend it to within 1 inch of the top or finished surface. Place all longitudinal expansion joints as shown on the Plans or as directed by the En gineer. Ensure that all expansion joints are true, even, and present a satisfactory appearance. Form construction joints around all appurtenances, such as manholes and utility poles, that extend into and through the sidewalk or median area. Install 1-inch thick premolded expansion joint filler in these joints. Install expansion joint filler, of the thickness shown on the Plans, between concrete sidewalks and any fixed structure, such as a building or bridge. Install 1 -inch thick expansion joint filler b etween concrete curb and median pavement and, unless otherwise specified, between concrete curb and sidewalk. This expansion joint material shall extend for the full depth of the walk or median pavement.
701.07 Limitations on Mixing
Comply with 604.12.
701.08 Mixing and Placing Concrete
Mix concrete as specified in 604.14. Place concrete as specified in 501.12, except that mechanical spreaders will not be required. Immediately before placing the concrete, thoroughly wet the subgrade, and give the forms a coating of light oil. Thoroughly clean and oil the forms before each use.
701.09 Finishing
Strike-off the concrete with a transverse template resting upon the side forms. After striking -off the concrete to the required cross -section, finish it with 701.10 684 floats and straightedges until the required surface requirem ents have been obtained. When the concrete surface is free from water and just before the concrete obtains its initial set, finish and lightly sweep the surface with a broom to produce a sandy texture. The longitudinal surface variations shall not exceed ¼ inch under a 12 -foot straightedge, or 1/8 inch on a 5 -foot transverse section. Ensure that the finished concrete surface will drain completely at all times. Carefully finish the edges of the sidewalks, driveways, and median pavement, and round with an e dging tool having a ½-inch radius. Divide the surface of sidewalks into blocks using a grooving tool. Space the grooves approximately 5 feet apart to produce rectangular blocks unless otherwise directed by the Engineer. Cut the grooves to a depth of not less than 1 inch. Shape the edges of the grooves with an edging tool having a ¼-inch radius. Place grooves in median pavement to be in line with corresponding joints in adjoining construction or as directed by the Engineer. Unless otherwise shown on the Plans, place marks or grooves at right angles to the centerline of driveways and approximately 8 inches apart. Using a suitable marking tool, make these markings to be between 1/8 and ¼ inch in depth. A grooving tool, of 6 to 8 inches in width, with mul tiple grooves for grooving alternate strips 8 inches apart, may be used for this purpose. Remove irregularities caused by the edges of the marking tool using a wetted brush or wooden float. Round all marking edges. Do not place grooves in the surface of sidewalks or driveways reinforced for beam action where the full thickness of concrete is required for strength. Round the edges of the concrete at expansion joints with an edging tool having a ¼-inch radius. Remove all marks caused by edging. Clean the top and ends of expansion joint material of all concrete and trim the expansion joint material to be slightly below the surface of the concrete.
701.10 Protection and Curing
Forms may be removed as soon as their removal will not damage the concrete. Do not exert pressure upon the concrete when removing forms. 701.11 685 Perform curing and provide cold weather protection as specified in 501.18. Do not allow pedestrians on concrete sidewalks, driveways, or medians until 12 hours after finishing the concrete. Do not allow vehicles or loads on any sidewalk, driveway, or median until the Engineer has determined that the concrete has attained sufficient strength for such loads. Construct and place barricades and protection devices as necessary to keep pedestrians and other traffic off the sidewalk, driveway, or median. Repair all sidewalks, driveways, or paved medians damaged prior to final acceptance of the Project, at no cost to the Department, by removing concrete within groove limits and replacing it with concrete of the same type and finish as used in the original construction.
701.11 Backfilling
Immediately after removing the si de forms, fill the spaces along the edges of the sidewalk or driveway with suitable material, placed in layers not exceeding 4 inches in loose thickness, and compact this material until firm and stable.
701.12 Final Cleanup
Perform final cleanup as speci fied in 104.10. COMPENSATION
701.13 Method of Measurement
The Department will measure Concrete Sidewalks and Concrete Driveways by the square foot, complete in place, based on surface area measurements. Where standard widths are constructed, the measurements shall not exceed the standard widths shown on the Plan s without the Engineer’s written approval. The Department will measure Concrete Sidewalks of each thickness, and Concrete Driveways, separately. The Department will measure Concrete Median Pavement by the volume in cubic yards, complete in place, as obt ained from the specified thickness shown on the Plans and surface measurements for width and length. 701.14 686 The Department will measure Concrete Curb Ramps and Concrete Curb Ramps (Retrofit) by the area in square feet, complete in place , as obtained from surface measurements. Where standard widths are constructed, the measurements shall not exceed the standard widths shown on the Plans, unless approved in writing by the Engineer. Unless otherwise shown on the Plans, the Department will consider subgrade preparation, backfill, expansion joint materials, and drain pipe to be incidental to the work.
701.14 Basis of Payment
The Department will pay for accepted quantities, complete in place, at the contract prices as follows: Item Pay Unit Concrete Sidewalk ( __ “) Square Feet Concrete Driveway ( __ “) Square Feet Concrete Median Pavement Cubic Yard Concrete Curb Ramp Square Feet Concrete Curb Ramp (Retrofit) Square Feet Such payment is full compensation for all subgrade preparation, backfill, and all other incidentals necessary to complete the work. 702.01 687 SECTION 702 – CEMENT CONCRETE CURB, GUTTER, AND COMBINED CURB AND GUTTER
702.01 Description ................................ ................................ ................... 687
702.02 Materials ................................ ................................ ...................... 687
702.03 Equipment ................................ ................................ .................... 688
702.04 Preliminary Work ................................ ................................ ......... 689
702.05 Subgrade Preparation ................................ ................................ ... 689
702.06 Expansion Joints ................................ ................................ .......... 689
702.07 Limitations on Mixing ................................ ................................ . 689
702.08 Mixing, Placing, and Finishing Concrete ................................ ..... 689
702.09 Protection and Curing ................................ ................................ .. 690
702.10 Backfilling ................................ ................................ ................... 691
702.11 Final Cleanup ................................ ................................ ............... 691
702.12 Method of Measurement ................................ .............................. 691
702.13 Basis of Payment ................................ ................................ .......... 691
DESCRIPTION
702.01 Description
This work consists of constructing Curb, Gutter, or Combined Curb and Gutter of Portland cement concrete. MATERIALS
702.02 Materials
Provide m aterials that meet the applicable requirements of 604 and 913, and as specified in : Preformed Joint Filler ................................ ............................ 905.01 Drain Pipe, Standard Strength ................................ ............... 914.04 To construct curb, gutter, and combined curb and gutter, use Class A concrete meeting the requirements of 604, with the following exception: when placing
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 690–695 of 1,072.