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HomeMy WebLinkAboutC4.0 Construction SpecsEARTHWORK 1. SCOPE OF WORK A. Extent: The work required under this section consists of all excavating, filling, rough grading, and related items necessary to complete the work indicated on the drawings and described in the specifications. 1. In general, the items of work to be performed under this section shall include: clearing and grubbing, removal of trees and stumps (where required), protection of trees to remain, stripping and storage of topsoil, fill compaction, and rough grading of entire site as indicated on the drawings. 2. Excavated material that is suitable may be used for fills. All unsuitable material and all surplus excavated material not required shall be removed from the site and appropriately placed. The location of dump and length of haul shall be the Contractor's responsibility. 3. Provide and place any additional fill material from off the site as may be necessary to produce the grades required. Fill obtained from off site shall be of kind and quality as specified for fills herein and the source approved by the Owner. 4. The Contractor shall accept the site as he finds it and shall remove all trash, rubbish and debris from the site prior to starting excavation. B. Work not included: The following items of related work are specified and included in other sections of these specifications. 1. Excavation, grading and backfilling for utility lines. 2. Storm drainage systems. 3. Sanitary sewer systems. 4. Water supply systems. 5. Streets and paving. 2. BENCHMARKS Carefully maintain all bench marks, monuments, and other reference points. If disturbed or destroyed replace as directed by engineer. 3. REMOVAL OF TREES A. Remove all trees and stumps from areas to be occupied by road and surfaced areas. Removal of trees outside these areas shall only be done as noted on drawings or approved by the Owner. B. All brush, stumps, wood, and other refuse from the trees shall be removed from site or burned with proper permits (where applicable). 4. PROTECTION OF TREES General Protection: The Contractor shall be responsible for the protection of tops, trunks, and roots of existing trees on the project site that are to remain. Existing trees subject to construction damage shall be boxed, fenced or otherwise protected before any work is started. Do not stockpile within branch spread. Remove interfering branches without injury to trunks and cover soars with tree paint 5. STRIPPING OF TOPSOIL Remove topsoil to a depth of 6 inches (or more if required) from the areas to be occupied by roads walks, buildings, and parking areas. Pile and store topsoil at a location where it will not interfere with construction operations. Top soil shall be reasonably free from subsoil, debris and stones. 6. DISPOSITION OF UTILITIES A. Rules and regulations governing the respective utilities shall be observed in executing all work under this section. B. It shall be the responsibility of each contractor to verify all existing utilities and conditions pertaining to his phase of the work. It shall also be the contractors responsibility to contact the owners or the various utilities before work is started The contractor shall notify in writing the owner or the engineer of any changes, errors, or omissions found on these plans or in the field before work is started or resumes. C. Where active utilities are encountered but not shown on the drawings, the Engineer shall be advised before work is continued, D. Inactive and abandoned utilities encountered in excavating and grading operations shall be reported to the Engineer. They shall be removed, plugged or capped as directed by the Engineer. 7. SITE GRADING A. Grades: Do all cutting, filling, compacting of fills and rough grading required to bring entire project area to subgrade as shown on the drawings. Undercut open areas 4 inches for topsoil. B. Rough grading: the tolerance for paved areas shall not exceed 0.10 feet above established subgrade. All other areas shall not exceed 0.10 feet plus or minus the established grade. Provide roundings at top and bottom of banks and other breaks in grade. All open areas shall be graded a minimum of 0.5% and a maximum of 3:1 slope. On fill slopes steeper than 4:1, step or break -up sloped surfaces so that fill will bond with existing surface. Maximum lift height shall not exceed 12 inches. C. Subgrade shall be proof rolled with suitable equipment, and all spongy and otherwise unsuitable material shall be removed and replaced with suitable material. D. Subgrade for streets and paved areas shall be compacted to 100% of standard proctor in the upper 6" of depth. Depths of embankment below the upper 6" shall be compacted to 9590 of standard proctor. E. See PAVING section also. F. All fill material shall be formed from soil tree of deleterious material. If so required, prior to placement of fill, a sample of the proposed material shall be submitted to the soils engineer far approval. The fill material shall be placed in layers not to exceed 8 inches in loose thickness and shall be spread and compacted at the proper moisture content. G. All fill material in areas outside of building and pavement areas shall be compacted lightly with each lift and protected from erosion. Areas of building construction shall have suitable fill material placed and compacted in accordance with the Soils Engineer's report or minimum 100% standard proctor. 1. 2. SCOPE OF WORK The work required under this section includes all exterior concrete and bituminous paving and related items necessary to complete the work indicated on drawings and described in the specifications including but not limited to: All drives, parking areas limits Curbs and gutters Sidewalks and concrete exterior steps MATERIALS A. B. C. D. E. Concrete: #30 #200 PAVING in contract slabs, Concrete shall be ready -mixed and shall be a mix of proportioned fine and coarse aggregates with Portland cement and water. Minimum cement content shall be 6 bags per cubic yard of concrete and maximum water content shall be 5.5 U.S. gallons per sack of cement, including moisture in the aggregate. Slump for normal weight concrete shall be a maximum of 4 inches and a minimum of 2 inches. The slump of machine placed concrete shall be no less than 1 -1/4 inches or more than inches. Standard test ASTM C -143 shall be used to measure slump. Minimum compressive strength of concrete at 28 days shall be 3500 psi. All exterior concrete shall have air entrainment of 5% to 8% by volume per ASTM C -260. Retempering of delivered concrete will not be allowed. Concrete shall be composed of: 1. Portland cement: conforming to ASTM C- 150, Type IA or type IIA. 2. Aggregates: conforming to ASTM C -33. 3. Water: Shall be clear and free from injurious amounts of oils, acids, alkaloids, organic materials or other deleterious substances. Welded Steel Wire Fabric: Where required for concrete reinforcement, shall conform to ASTM A185. Premolded Joint Filler: Shall be non extruding type meeting ASTM D -544, except that premolded joint filler used in concrete walk construction may be either non extruding or resilient. Bituminous Pavement Materials: All materials proposed for the construction of bituminous pavements shall comply with Sections 400 and 900 of the Indiana Department of Transportation Specifications. Compacted Aggregate Sub -base: Shall be crushed stone or gravel; Crushed gravel shall be a minimum of 35% crushed material. Fines shall be limited to a maximum of 8% of the total. Material shall be free from an excess of flat, elongated, thinly laminated, soft or disintegrated pieces, and shall be free from fragments coated with dirt. Compacted aggregate shall as follows or per latest revisions: SIEVE SIZE PASSING 1" 100 1" 80 -100 3" 4" 79 -90 44" 55 -80 35 -60 25 -50 12 -30 5 -10 be graded 3. APPLICATION A. Grading: Do any necessary grading in addition to that performed in accordance with Earthwork Section to bring subgrades, after final compaction, to the required grades and sections for site improvement. B. Preparation of Subgrade: Remove spongy and otherwise unsuitable material and replace with stable material. No traffic will be allowed on prepared subgrade prior to paving. C. Compaction of Subgrade: The first 6 inches below the subgrade shall be compacted to at least 100% of the maximum dry density as determined by the provisions of AASHTO T -99. Water shall be prevented from standing on the compacted subgrade. D. Utility Structures: Check for correct elevation of all manhole covers, inlets, valve boxes and similar structures located within areas to be paved and mark, or have made any necessary adjustments in such structures. E. Placing Concrete: 1. Subgrade: Place concrete only on a moist, compacted subgrade of base free from loose material. Place no concrete on a muddy or frozen subgrade. 2. Forms: All forms shall be free from warp, tight enough to prevent leakage, and substantial enough to maintain their shape and position without springing or settling when concrete is placed. Forms shall be clean and smooth immediately before concreting. 3. Placing Concrete: Concrete shall be deposited so as to require as little handling as practicable. When concrete is to be placed at an atmospheric temperature of 35 degrees F., or less, paragraph 702.11 of the Indiana Deportment of Transportation Specifications, latest revision shall be followed. 3 F. Concrete Curb and Gutter: 1. Expansion Joints: Shall be inch thick premolded at ends of all returns and a maximum spacing of 130 feet. 2. Contraction Joints: Unless otherwise provided, contraction joints shall be joints spaced 10 feet on center. 3. Finish: Tamp and screed concrete as soon as placed, and fill any honeycombed places. Finish square corners to inch radius and other corners to radii shown in plans. G. Concrete Walks and Exterior Steps 1. Slopes: Provide inch per foot cross slope. Make adjustments in slopes at walk intersections as necessary to provide proper drainage. 2. Dimensions: Walks and steps shall be one course construction and have widths and details shown on the drawings. 3. Finish: Screed concrete and trowel with a steel trowel to a hard dense surface after surface water has disappeared. Apply medium broom finish and scribe control joints at 6 foot spacing. Provide expansion joints where sidewalks intersect and at a maximum spacing of 48 feet between expansion joints. H. Curing Concrete: Except as otherwise specified, cure all concrete by one of the methods described in Section 501.20 of the Indiana Department of Transportation Specifications, latest revision. I. Bituminous Pavement: Hot asphalt concrete pavement shall be as specified in Section 402 of the Indiana Deportment of Transportation Specifications, latest revisions. Paving will not be permitted during unfavorable weather or when the temperature is 40 degrees F. and lolling. J. Compacted Aggregate Sub -base: The thickness shown on the drawings is the minimum thickness of the fully compacted sub -base: Compaction shall be accomplished by rolling with a smooth wheeled roller weighing 8 to 10 tons. Compact to 95% compaction using Standard Testing Procedures. Along curbs, headers and walls and at all places not accessible to the roller, the aggregate material shall be tamped with mechanical tampers or with approved tampers. STORM SEWER All storm sewer construction shall comply with with the "City of Cannel Technical Standards Manual" and the "City of Carmel Stormwater Management Ordinance CONSTRUCTION SPECIFICATIONS A B c D E P 4 w Owner: Regulatory Agency: Mercedes Benz Service Center 4000 E. 96th Street Carmel, Indiana 4000 E. LW 4000 E. 96th Street Carmel, IN 48280 Site Engineer: Bordenet Civil Engineering Land Surveying, LW Ph. 317 -536 -6181 8902 Alibeck Ct. Indianapolis, IN 46256 Cannel Department of Community Services Cannel City Ball One Civic Square Carmel, IN 46032 FINAL CONSTRUCTION PLANS Plan Date: February 23rd, 2010 3' General Notes: Rev. No. 111 ANT Sheet No. c��pTT Q No. 19900113 STATE OF REVISION BLOCK Des Project Number: 2009 -077 C4.0 Bordenet Civil Engineering Land Surveying, LLC Ph. 317- 536 -6181 Fax: 317- 536 -6220 8902 Alibeck Ct. Indianapolis, IN 46256 Date