SECTION_32_16_00_Driveway_Sidewalk_Curb_Gutter.docx
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SECTION 32 16 00 DRIVEWAY, SIDEWALK, CURB, GUTTER
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SECTION 32 16 00
SECTION 32 16 00
DRIVEWAY, SIDEWALK, CURB, GUTTER
| PART 1 | GENERAL |
| 1.1 | SECTION INCLUDES |
| A. | Concrete flatwork such as but not limited to waterways, waterway transition structures, sidewalks, curbs, gutters, Driveway Approaches. |
| 1.2 | REFERENCES |
| A. | American Public Works Association (Utah Chapter). |
| 1. | Plan 205: Curb and Gutter. |
| 2. | Plan 209: Curbs. |
| 3. | Plan 211: Waterway. |
| 4. | Plan 213: Waterway Transition Structure. |
| 5. | Plan 222: Saw-Cut Driveway Approach |
| 6. | Plan 231: Concrete Sidewalk. |
| B. | ASTM A 36: Standard Specifications for Structural Steel. |
| C. | ASTM C 39. Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. |
| D. | ASTM C 172: Standard Method of Sampling Freshly Mixed Concrete. |
| 1.3 | DEFINITIONS |
| A. | Driveway: A paved or unpaved vehicular thoroughfare outside of, but connected to a public road right-of-way or highway right-of-way. |
| B. | Driveway Approach: (1) A vehicular thoroughfare connecting a public road or highway to a driveway. (2) A concrete structure composed of sidewalk, apron and any curb and gutter abutting the apron. When an apron is built as a bridge over curb and gutter, the bridge is included in this definition. |
| 1.4 | SUBMITTALS |
| A. | Traffic control plan, Section 01 55 26. |
| B. | Concrete mix design, Section 03 30 04. |
| C. | Batch ticket, Section 03 30 10. |
| D. | Quality Control Inspections and Testing Report: Upon COR’s request, submit a report describing source and field quality control activities and test results performed by Contractor and Contractor’s Suppliers. |
| 1.5 | NOTICE |
| A. | Coordinate with COR to provide notice to residents and/or building occupants within affected area at least 3 days before work starts. |
| B. | Indicate when concrete work will take place and when driveway approach can be used. |
| C. | Warn of potential vehicle tow away and other construction issues affecting neighborhood. |
| D. | Should work not occur on specified day, provide a new notice. |
| 1.6 | ACCEPTANCE |
| A. | General: |
| 1. | Acceptance is by Lot. One Lot is one day’s production. |
| B. | Concrete Mix: |
| 1. | Testing Frequency: Section 03 30 05. Sample per ASTM C 172. |
| 2. | Temperature, Slump, Air: Lot size is 1 random batch. Reject noncomplying batches until 2 consecutive batches are compliant then proceed in random batch testing for acceptance. |
| 3. | Strength: ASTM C 39. Lot size is 50 cubic yards. At COR’s discretion, a Lot with sub-lot test deviations greater than Reject may stay in place at 50 percent cost. |
Table 1: Compressive Strength Pay Factors
| Pay Factor |
| PSI Below 28-Day Compressive Strength |
| 0.98 |
| 1 to 100 |
| 0.94 |
| 101 to 200 |
| 0.88 |
| 201 to 300 |
| 0.80 |
| 301 to 400 |
| Reject |
| Greater than 400 |
| C. | Placement, finishing and protection, Section 03 30 10 |
| 1. | Verify line, grade, cross slope and finish. |
| 2. | No standing water in curb and gutter. |
| PART 2 | PRODUCTS |
| 2.1 | MATERIALS |
| A. | Concrete Mix.: |
| 1. | Cast-in-place: Class 4000, Section 03 30 04. |
| 2. | Maximum slump per mix design. |
| B. | Reinforcement: Grade 60 ksi galvanized or epoxy coated steel per Section 03 20 00. |
| C. | Expansion Joint Filler: F1 sheet 1/2 inch thick per Section 32 13 73. |
| D. | Contraction Joint Filler (Backer Rod): Closed cell, Type 1 round Section 32 13 73. |
| E. | Contraction Joint Sealer: HAS1 or HAS4 hot applied per Section 32 13 73. |
| F. | Curing Compound: Membrane forming compound per Section 03 39 00. |
| G. | Plate Steel: ASTM A 36 galvanized per Section 05 05 10. |
| PART 3 | EXECUTION |
| 3.1 | CONSTRUCTION EQUIPMENT |
| A. | Slip Form Machines. |
| 1. | Placement must produce required cross-section, lines, grades, finish, and jointing as specified for formed concrete. |
| 2. | If results are not acceptable, remove and replace work with formed concrete. |
| 3.2 | PREPARATION |
| A. | Control pedestrian and vehicular traffic, Section 01 55 26. |
| B. | Examine surfaces scheduled to receive concrete formwork for defects. |
| C. | Do not start work until defects are corrected. |
| D. | Check slopes on each side of the work to ensure drainage. Failure to check and verify will result in Contractor repairing any drainage deficiencies at no additional cost to Government. |
| 3.3 | LAYOUT |
| A. | Curb, Gutter, Curb and Gutter: Plan 205, 209, 211, 213. |
| 1. | Line: Less than 1/2 inch variance in 10 feet and not more than 1 inch from true line at any location. |
| 2. | Grade: Not more than 1/4 inch variance in 10 feet. Flood curb and gutter with water after final cure has been reached. Remove and replace any area where ponding is found. |
| B. | Sidewalk: Plan 231. |
| 1. | Cross slope 2 percent. |
| 2. | Landing slope 2 percent maximum in any direction. |
| 3. | Ramp slope, per ADA and UFAS requirements. |
| C. | Driveway Approaches: Plan 215, 216, 221, 225, 229. |
| 3.4 | CONCRETE PLACEMENT |
| A. | Section 03 30 10. |
| B. | Make sure base course is uniformly damp at time of concrete placement. |
| C. | Obtain ENGINEER's review of base course and forms before placing concrete. |
| D. | Do not use methods that segregate the mix. |
| E. | Place concrete so time between end of placement and beginning of finishing is less than 15 minutes. |
| F. | Consolidate concrete with vibrator or other acceptable method. Do not use mechanical vibrators. Prevent dislocation of inserts. |
| 3.5 | CONTRACTION JOINTS |
| A. | Geometrics: |
| 1. | Tooled Joints (Score Lines): |
| a. | Depth = T/4. T is the depth of the concrete slab in inches. |
| b. | Top radius = 1/2 inch. |
| 2. | Saw Cut Joints: Saw joints before uncontrolled shrinkage cracking occurs. Do not tear or ravel concrete during sawing. |
| 3. | Template Joints: 1/8 to 3/16 inch wide 1/4-depth of slab. |
| B. | Sidewalks. |
| 1. | At intervals equal to the width of the sidewalk and transverse to the line of walk. |
| 2. | Radial at curbs and walk returns. |
| 3. | Place longitudinal joints in walks when width of walk in feet is greater than 2 times the walk thickness in inches. (e.g. maximum width of a 4 inch thick walk before placement of a longitudinal contraction joint is 8 feet). Make longitudinal joints parallel to, or concentric with, the lines of the walk. |
| 4. | In walk returns make 1 joint radially midway between the beginning of curb returns (BCR) and end of curb returns (ECR). Match longitudinal and traverse joints with the adjacent walks. |
| C. | Curb, Gutter, Waterway. |
| 1. | Place joints at intervals not exceeding 12 feet. |
| 2. | At curb radius and walk returns make the joints radial. |
| 3. | Where integral curb and gutter is adjacent to concrete Pavement, align the joints with the Pavement joints where practical. |
| D. | Additional Contraction Joint Requirements: Section 32 13 73. |
| 3.6 | EXPANSION JOINTS |
| A. | Geometrics: 1/2 inch wide full depth filler that is flush with concrete surface. Do not place seal over top of filler. |
| B. | Sidewalks, Sidewalk Ramps. |
| 1. | Place expansion joints to separate sidewalk from utility poles, hydrants, Manhole frames, buildings and abutting sidewalks. |
| 2. | Place expansion joints between the sidewalk and the back of curb returns and between the sidewalk and sidewalk ramps. |
| 3. | Do not place expansion joints in sidewalk ramp surfaces. |
| 4. | Expansion joints are not required when using slip form method to place concrete except where sidewalk changes direction or where it joins foundation walls or structures. |
| C. | Curb, Gutter, Waterway. |
| 1. | Do not place longitudinal joints in drain gutter flow-lines. |
| 2. | Where drain gutter transitions extend beyond the curb return, place expansion joints at the ends of the drain gutter transition. |
| 3. | Place expansion joints at beginning of curb radius (BCR) and end of curb radius (ECR). |
| D. | Slip Form Work: Expansion joints are not required except at BCR or ECR. |
| E. | Driveway Approach: Do not place expansion joints in curb returns. |
| F. | Street Intersection Corner: Place expansion joints at BCR and ECR. |
| G. | Additional Expansion Joint Requirements: Section 32 13 73. |
| 3.7 | FINISH |
| A. | Section 03 35 00. |
| B. | Round edges exposed to public view to a 1/2 inch radius. |
| C. | Apply broom finish longitudinal to curb and gutter flowline. |
| D. | Apply broom finish transverse to sidewalk centerline as follows. |
| 1. | Fine hair finish where grades are less than 6 percent. |
| 2. | Rough hair finish where grades exceed 6 percent. |
| E. | Remove form marks or irregularities from finish surfaces. |
| 3.8 | CURING |
| A. | Section 03 39 00. |
| B. | Type ID Class A (clear with fugitive dye) membrane forming compound. Apply total coverage in 2 directions after texturing. |
| C. | Eliminate thermal shock of concrete by keeping cure temperature even throughout extent and depth of concrete slab. |
| 3.9 | PROTECTION AND REPAIRS |
| A. | General: All expenses are at no cost to Government. |
| B. | Protection: Section 03 30 10. |
| 1. | Protect concrete work from deicing chemicals during the 28 day cure period. |
| 2. | Immediately after placement, protect concrete from graffiti or other types of mechanical injury. |
| C. | Repair: Section 03 30 10. |
| 1. | Correct all humps or depressions. |
| 2. | Secure COR’s acceptance of method of correction. |
END OF SECTION
DRIVEWAY, SIDEWALK, CURB, GUTTER Page 6
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