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HomeMy WebLinkAboutUntitled (25) 32 12 16 -1 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN SECTION 31 12 16 -ASPHALT PAVING PART 1 -GENERAL 1.1 RELATED DOCUMENTS A. The general provisions of the contract, including general and supplementary conditions and the general requirements, apply to the work specified in this section. 1.2 SUMMARY A. Extent of hot-mix asphalt paving is indicated on drawings. B. This Section includes the following: 1. Base courses for asphalt paving. 2. Hot-mix asphalt paving intermediate and surface courses. 3. Pavement-marking paint. C. Related Sections include the following: 1. Division 32 Section "Earthwork" for aggregate subbase and base courses and for aggregate pavement shoulders. 2. Division 32 Section "Unit Pavers" for bituminous setting bed for pavers. 3. Division 32 Section "Joint Sealants" for joint sealants and fillers at paving terminations. 1.3 SYSTEM DESCRIPTION A. Provide hot-mix asphalt paving according to materials, workmanship, and other applicable requirements of standard specifications of state and local DOT. 1.4 SUBMITTALS A. Material Certificates: Certificates on state-approved forms, signed by material producer and Contractor, certifying that each material item complies with or exceeds specified requirements. 1. Job-Mix Designs: For each job mix proposed for the Work. 2. Material Test Reports: For each paving material. 1.5 QUALITY ASSURANCE A. Manufacturer Qualifications: A qualified manufacturer. 1. Manufacturer shall be a paving-mix manufacturer registered with and approved by authorities having jurisdiction or the DOT of the state in which Project is located. B. Regulatory Requirements: Comply with State Highway or Transportation Department standard specifications, latest edition, for asphalt paving work. Comply with local 32 12 16 -2 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN governing regulations if more stringent than herein specified. 1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver pavement-marking materials to Project site in original packages with seals unbroken and bearing manufacturer's labels containing brand name and type of material, date of manufacture, and directions for storage. B. Store pavement-marking materials in a clean, dry, protected location within temperature range required by manufacturer. Protect stored materials from direct sunlight. 1.7 PROJECT CONDITIONS A. Environmental Limitations: Do not apply asphalt materials if subgrade is wet or excessively damp or if the following conditions are not met: 1. Tack Coats: Minimum surface temperature of 60 deg F. 2. Asphalt Base Course: Minimum surface temperature of 40 deg F and rising at time of placement. 3. Asphalt Surface Course: Minimum surface temperature of 60 deg deg F at time of placement. B. Pavement-Marking Paint: Proceed with pavement marking only on clean, dry surfaces and at a minimum ambient or surface temperature of 50 deg F for water-based materials, and not exceeding 95 deg F. PART 2 -PRODUCTS 2.1 AGGREGATES A. General: Use materials and gradations that have performed satisfactorily in previous installations. B. Base Courses: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand as indicated on Drawings. C. Coarse Aggregate for Pavement: ASTM D 692, sound; angular crushed stone, crushed gravel, or properly cured, crushed blast-furnace slag. D. Fine Aggregate for Pavement: ASTM D 1073 or AASHTO M 29, sharp-edged natural sand or sand prepared from stone, gravel, properly cured blast-furnace slag, or combinations thereof. 1. For hot-mix asphalt, limit natural sand to a maximum of 20 percent by weight of the total aggregate mass. E. Mineral Filler: ASTM D 242 or AASHTO M 17, rock or slag dust, hydraulic cement, or other inert material. 2.2 ASPHALT MATERIALS A. Asphalt Binder: AASHTO MP 1, Performance Grade in accordance with DOT recommendations for location indicated. 32 12 16 -3 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN B. Tack Coat: ASTM D 977 or AASHTO M 140, emulsified asphalt or ASTM D 2397 or AASHTO M 208, cationic emulsified asphalt, slow setting, diluted in water, of suitable grade and consistency for application. C. Water: Potable. 2.3 AUXILIARY MATERIALS A. Geotextile Fabric: Spunbond 100% polyester or polypropylene fabric meeting the following minimum requirements. 1. Permeability: ASTM D4491 0.01 cmps. 2. Grab Strength; ASTM D4632, 130 lbs. 3. Puncture Strength: ASTM D4833 40 lbs. 4. Burst Strength: ASTM D3786, 140 lbs. B. Herbicide: Commercial chemical for weed control, registered by the EPA. Provide in granular, liquid, or wettable powder form. C. Pavement-Marking Paint: White latex, waterborne emulsion, lead and chromate free, ready mixed, complying with FS TT-P-1952. 1. Manufacturer: Subject to compliance with requirements provide products of the following. a. Devoe; #416XX Traffic Line b. Glidden; #6324X Ultra-Hede c. MAB; "072 Series” Latex Traffic Paint 2.4 MIXES A. Hot-Mix Asphalt: Dense, hot-laid, hot-mix asphalt plant mixes complying with ASTM D3515 and approved by authorities having jurisdiction to suit project conditions. PART 3 -EXECUTION 3.1 EXAMINATION A. Verify that subgrade is dry and in suitable condition to support paving and imposed loads. B. Proof-roll subbase using heavy, pneumatic-tired rollers to locate areas that are unstable or that require further compaction. C. Proceed with paving only after unsatisfactory conditions have been corrected. 3.2 BASE COURSE A. Based on unit prices and as recommended by soils engineer, under base course, install drainage fabric on prepared subgrade according to manufacturer's written instructions, overlapping sides and ends. B. Under pavements, place base course on prepared subgrade and as follows: 32 12 16 -4 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN 1. Compact subbase and base courses at optimum moisture content to required grades, lines, cross sections, and thickness to not less than 95 percent of maximum dry unit weight according to ASTM D 1557. 2. Shape subbase and base to required crown elevations and cross-slope grades. 3. When thickness of compacted subbase or base course is 6 inches or less, place materials in a single layer. 4. When thickness of compacted subbase or base course exceeds 6 inches, place materials in equal layers, with no layer more than 6 inches thick or less than 3 inches thick when compacted. C. Shoulders: Place shoulders along edges of base course to prevent lateral movement. Construct shoulders, at least 12 inches wide, of satisfactory soil materials and compact simultaneously with each subbase and base layer to not less than 95 percent of maximum dry unit weight according to ASTM D 1557. 3.3 PREPARATION OF BASE COURSE FOR PAVING A. General: Immediately before placing asphalt materials, remove loose and deleterious material from base course surfaces. B. Herbicide Treatment: Apply herbicide according to manufacturer's recommended rates and written application instructions. Apply to dry, prepared subgrade or surface of compacted-aggregate base before applying paving materials. 1. Mix herbicide with prime coat if formulated by manufacturer for that purpose. C. Tack Coat: Apply uniformly to surfaces of existing pavement at a rate of 0.05 to 0.15 gal./sq. yd.. 1. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving. 2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings. Remove spillages and clean affected surfaces. 3.4 HOT-MIX ASPHALT PLACING A. Machine place hot-mix asphalt on prepared surface, spread uniformly, and strike off. Place asphalt mix by hand to areas inaccessible to equipment in a manner that prevents segregation of mix. Place each course to required grade, cross section, and thickness when compacted. 1. Place hot-mix asphalt intermediate course in number of lifts and thicknesses indicated. 2. Place hot-mix asphalt surface course in single lift. 3. Spread mix at minimum temperature of 250 deg F. 4. Begin applying mix along centerline of crown for crowned sections and on high side of one-way slopes, unless otherwise indicated. 5. Regulate paver machine speed to obtain smooth, continuous surface free of pulls and tears in asphalt-paving mat. B. Place paving in consecutive strips not less than 10 feet wide unless infill edge strips of a lesser width are required. 32 12 16 -5 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN 1. After first strip has been placed and rolled, place succeeding strips and extend rolling to overlap previous strips. Complete a section of asphalt base course before placing asphalt surface course. 2. For tennis and recreational surfaces, changing of pavement direction will not be allowed. 3. For outdoor tennis and recreational surfaces, pave parallel to direction of drainage flow. C. Promptly correct surface irregularities in paving course behind paver. Use suitable hand tools to remove excess material forming high spots. Fill depressions with hot-mix asphalt to prevent segregation of mix; use suitable hand tools to smooth surface. 3.5 JOINTS A. Construct joints to ensure a continuous bond between adjoining paving sections. Construct joints free of depressions with same texture and smoothness as other sections of hot-mix asphalt course. 1. Clean contact surfaces and apply tack coat to joints. 2. Offset longitudinal joints, in successive courses, a minimum of 6 inches. 3. Offset transverse joints, in successive courses, a minimum of 24 inches. 4. Compact joints as soon as hot-mix asphalt will bear roller weight without excessive displacement. 3.6 COMPACTION A. General: Begin compaction as soon as placed hot-mix paving will bear roller weight without excessive displacement. Compact hot-mix paving with hot, hand tampers or vibratory-plate compactors in areas inaccessible to rollers. 1. Complete compaction before mix temperature cools to 185 deg F. B. Breakdown Rolling: Complete breakdown or initial rolling immediately after rolling joints and outside edge. Examine surface immediately after breakdown rolling for indicated crown, grade, and smoothness. Correct laydown and rolling operations to comply with requirements. C. Intermediate Rolling: Begin intermediate rolling immediately after breakdown rolling while hot-mix asphalt is still hot enough to achieve specified specified density. Continue rolling until hotmix asphalt course has been uniformly compacted to the following density: 1. Average Density: 96 percent of reference laboratory density according to AASHTO T 245, but not less than 94 percent nor greater than 100 percent. 2. Average Density: 92 percent of reference maximum theoretical density according to ASTM D 2041, but not less than 90 percent nor greater than 96 percent. D. Finish Rolling: Finish roll paved surfaces to remove roller marks while hot-mix asphalt is still warm. E. Edge Shaping: While surface is being compacted and finished, trim edges of pavement to proper alignment. Bevel edges while asphalt is still hot; compact thoroughly. 32 12 16 -6 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN F. Repairs: Remove paved areas that are defective or contaminated with foreign materials and replace with fresh, hot-mix asphalt. Compact by rolling to specified density and surface smoothness. G. Protection: After final rolling, do not permit vehicular traffic on pavement until it has cooled and hardened. H. Erect barricades to protect paving from traffic until mixture has cooled enough not to become marked. 3.7 INSTALLATION TOLERANCES A. Thickness: Compact each course to produce the thickness indicated within the following tolerances: 1. Base Course: Plus or minus 1/2 inch. 2. Surface Course: Plus 1/4 inch, no minus. B. Surface Smoothness: Compact each course to produce a surface smoothness within the following tolerances as determined by using a 10-foot straightedge applied transversely or longitudinally to paved areas: 1. Base Course: 1/4 inch. 2. Surface Course: 1/8 inch. 3. Crowned Surfaces: Test with crowned template centered and at right angle to crown. Maximum allowable variance from template is 1/4 inch. 3.8 PAVEMENT MARKING A. Do not apply pavement-marking paint until layout, colors, and placement have been verified with Architect. B. Allow paving to age for 30 days before starting pavement marking. C. Sweep and clean surface to eliminate loose material and dust. D. Apply paint with mechanical equipment to produce pavement markings, of dimensions indicated, with uniform, straight edges. Apply at manufacturer's recommended rates to provide a minimum wet film thickness of 15 mils. 3.9 FIELD QUALITY CONTROL A. Thickness: Determine in-place compacted thickness of hot-mix asphalt courses according to ASTM D 3549. B. Surface Smoothness: Test finished surface of each hot-mix asphalt course for compliance with smoothness tolerances. C. Testing Agency: Engage a qualified independent testing and inspecting agency to perform field tests and inspections and to prepare test reports. 1. In-Place Density: Testing agency will take samples of uncompacted paving mixtures and compacted pavement according to ASTM D 979 or AASHTO T 168. 32 12 16 -7 VILLAGE ON THE GREEN -PARCEL 7C Issue Date 09.15.09 ASPHALT PAVING OFFICE BUILDING NO.1 AND BLACK BOX THEATRE; PARCEL 7-C-2 CARMEL, IN a. Reference maximum theoretical density will be determined by averaging results from four samples of hot-mix asphalt-paving mixture delivered daily to site, prepared according to ASTM D 2041, and compacted according to job-mix specifications. b. In-place density of compacted pavement will be determined by testing core samples according to ASTM D 1188 or ASTM D 2726. 1) One core sample will be taken for every 1000 sq. yd. or less of installed pavement, with no fewer than 3 cores taken. 2) Field density of in-place compacted pavement may also be determined by nuclear method according to ASTM D 2950 and correlated with ASTM D 1188 or ASTM D 2726. 2. Remove and replace or install additional hot-mix asphalt where test results or measurements indicate that it does not comply with specified requirements. 3.10 DISPOSAL A. Except for material indicated to be recycled, remove excavated materials from Project site and legally dispose of them in an EPA-approved landfill. 1. Do not allow excavated materials to accumulate on-site. END OF SECTION 32 12 16