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HomeMy WebLinkAbout2010-C-14CONCRETE REINFORCEMENT (COICT) 3.2 INSTALLATION - A. Before being placed, thoroughly clean all material of all rust, 1. dirt, dust, oil and any other material deleterious to bonding of concrete. B. Supports: With the exception of temperature reinforcement which shall be tied-, to main steel approximately 12 inches o.c.., reinforcement shall be accurately placed and securely tied at . a 11 2. intersections and spliced with 16 gauge black annealed wire, and shall be securely held in position during placing of concrete by 3. means of precast concrete block supports. Wire -tie ends shall point away f rom the form. Unless otherwise indicated on drawings or 4. specified, the number, type and spacing of supports shall conform to the ACI Detailing Manuel (ACI 315-78). C. In masonry construction reinforcing shall 5e- placed as required.. L All steel shall be held at least 1/2 inch clear o l the masonry to insure accepcoble coverage of grout. CAST�IN�PLACE CONCRETE PART 1: GENERAL 1.1 SCOPE A. Furnish and install all concrete werk as shown on the drawings and �. Posts, Brace Rails, and F i tt i ngs : as specified in this section; including but not necessarily limited All posts and brace rails (for panels adjacent to terminal, to the f of 1 owi no: gate, angle and corner posts) shall be made of hot -dipped Zinc 1. Concrete footings for walls. coated (galvanized) welded and seamless steel pipe of "Standard 2. Exposed aggregate concrete paving. Weight". The pipe shall be coated inside and outside, and the 3. Concrete footings and foundations for structures. weight of the zinc ccati ng shall be not less than 2.0 oz. per 4. Placement and coordination of anchor bolts, nai 1 i ng strips, s.f. of total coated surface. Welding of posts for new chain conduits and inserts with other trades. 1 i nk fences shall not be permitted with written consent of the S. Concrete mowstri ps e B. Related work specified elsewhere: The calculated weight of the coating and the determination of '. Concrete Formwork. the weight shall be as described in ASTM A-120-471, and Concrete Reinforcement. i nc 1 ud i n9 ASTM A-90-39. ,.tMENTS OF REGULATORY AGENCIES A. Except as modified by the requirements specified herein, and/or the Nominal Outside Weight details on the drawings, all work included in this section shall Pipe Size Diameter Linear conform to the applicable provisions of the following codes and Inches Inches Ft_ standards. Line posts 2 2.375 3.65 1. International Conference of Building Officials (ICBG): Uniforms Top rail, middle a bottom rails; 1-1/4 1.660 2.27 Building Code, 1979 edition, volume 1, chapter 26, "Concrete". The weight of pipe may vary not more than five (5) percent from 2. American Concrete Institute (ACI): -Building Code Requirements that specified and the diameter may vary not more that one (1) for Reinforced Concrete; ACI 318-77. percent under or over that specified, except for the 1.66" 3., American Society for Testing and Materials (ASTM): The pipe, which may not vary more than 1/32" under that specified. specifications and standards hereinafter referred to, latest The finished pipe shall be reasonably straight and free from edition. 1.3 TESTS AND INSPECTIONS A. Testing laboratory approved by the Owner shall des i 9n • i xes for each type and class of concrete, except arbitrary mix. PART 2: PRODUCTS 2.1 MATERIALS A. Portland Cement: ASTM Standard Specifications for Portland cement C-150, Type 11. Use only one brand of cement on the project. Tem-- ! perature of cement shall not be over 140 F when delivered to the - heavily galvanized flat mild steel not less than 1/18" x 1", patchina plan. N. Concrete Aggregates: ASTM Standard Specifications for Concrete shat 1 be 1/8" x 3/4". Bolts for use with tension bands and Aggregates: C-33 for standard weight concrete. Exposed aggregate rail bands shall be cadmium, zinc, or galvanized plated, not materials shall be 1/.4" = 1/2" diameter. See Detail B. Sheet C-16 less than 5/16" diameter. for additional aggregate notes. C. Water for mixing concrete and grout shall be taken from an approved iron, designed to fit snuggly over the posts with a minimum domestic source and shall be free of all impurities detrimental to projection of one inch (1") below top of posts. Post caps for concrete. D. Color Admixture: L. M. Scofield Chromi x Admixture C-11 per plans same. and details and installed following manufacturer's specification. Top rail and brace rail ends shall be heavily galvanized Admixtures may be used in all concrete. Admixtures shall be malleable iron and shall have holes to receive 5/16" bolts for approved by the Architect. See Detail B. Sheet C-16, for additional securing to rail and bands. notes. E. Reinforcement steel per reinforcement steel section. F. Curing Compounds: Thompson's Water Seal or Hunt's T.F.L. G. Concrete Hardener: Sika -Gard, C/H, Aquabar it Hornstrone, two heavily galvanized. impreynations, applied as per manufacturer's directions on all Fabric ties for attaching fabric to posts shall be #110-1, or exposed interior concrete. M. Concrete Sealer: Sika No. 2, Chem -Seal, or Horntraz applied as per steel wire. No. 11 gauge galvanized wire shall be used for manufacturer's published directions on all exposed interior typing -fabric tc top rails and brad rails. concrete. 2.2 CONCRETE STRENGTH AND PROPOSITIONS A. Concrete miAOS shall comply with the arbitrary Mix shown i n the' Fence posts shall be spaced not more than 10'-0" and shall be following table: spaced 3t equal intervals between terminal, angle, corner, Min. 28 Day Aggregate Max. Water -Cement Min. Sacks Maximum Slump and/or gate posts, except where spacing of posts is indicated Strength Size Ration Cement/yd. • 29000 lbs. 1-1/2" 7.5 Gal./Sack 5.3 4" RMT 3: EXECUTION 3.1 CONSTRUCTION OF FORMS". A. Forms shall be substantial, plumb, level, square, true -to -line, le water tight, and accurate to the dimensions required. 5. Concrete surfaces, where left exposed, shall be formed on all sides with plywood with taped joints to give a smooth, uniform straight finish. 0. Details of Construction: 1. Reinforcement steel shall be securely tied in place, Do not use bars with kinks or bends not shown on drawings. Place all reinforcing as detailed and comply with typical detail for bends, splices, clearance, etc., and with requirements of the Uniform Building Code. 2. Location of construction joints shall be as shown on the 4. drawings and approved by the Architect. 3.2 MIXING, PLACING AND FINISHING A. Mixing of concrete shall be by transit -mixers only. Quantities of concrete surfaces by 1/2". materials shall be recorded by an authorized wei ghmaster. Mix Concrete for post footings shall- be mixed in the fol lowi n! concrete for ten (10)mi nutes minimum with a peripheral drum speed of volumetric proportions: approximately 200 feet per minute. At least three (3) minutes of the 1 - part Portland cement mixing period shall be at the job site. Discharge loads in less 3 - parts fine aggregate than 1-1/2 hours after water is first added. 5 - parts course aggregate (1/4" to 1-1/2*) 8. Placing of Concrete: Avoid segregation, do tamping and vibrating in Posts shall be set plumb and true to line. Top ornaments shall such a manner as to produce a dense, smooth job free fromrock be'installed on all posts. pockets and voids. Do not place concrete when the temperature is Posts shall be set so that the top of the eye of the ornament bel ow 40 F. Devices shall be used to limit the free fall of con- shall be level with the top of the fabric. crete to a* maximum height of. six feet (6'). rMY49LILTANTS Co Finishing (unless otherwise noted) shall be as follows: 1. Flat work, exterior: as shown on the drawings. D. Variance in concrete slab surface shall be no more than 1/16" in ten feet (10'). E. For retardant concrete see construction detail sheet. 1. The contractor shall provide a 3' x 3' sample of concrete with the retardant finish for approval before constructing walks. 3.3 CURL N6 COMPOl l AND REMOVAL OF FORMS A. Curing shall be done i n such a manner as to produce a complete hydration of the concrete. Improperly cured concrete shall be removed and replaced at the expense of the Contractor. 6. Curing may be accoopl i shed by keeping concrete continuously wet by flooding, by covering the concrete with "Vi squeen" for ten (10) days, or by use of curing compound. C. Exterior walks, curbs, gutters, and other exterior concrete work may be cured by the use of an approved curing compound applied in strict Compliance with manufacturOr's SpeCifiCatiO4U0 D. Removal of forms: Do not remove forms until the concrete has attained adequate strength to prevent damage. Take extreme care in stripping to avoid breaking off corners, marking concrete, or defacing the finish surface in any way. 3.4 CLEANI N6 AND PATCIII N6 . A. lifter stripping forms, clean all exposed concrete surfaces and all adjoining work stained by leakage of concrete. Remove all tins, burrs, and projections by grinding. t. Patch all voids, rock pockets, holes, cracks, etc., by chipping loose concrete and exposing clean sound aggregate. Structural engineer will inspect all patching preparation prior to dry -packing for approval. C. After inspection, dampen prepared recesses for two (2) hours minimum and fill with dry-packinS for approval. D. Apply mortar to final surface and keep patch damp for five (5) days. minimum. E. Entire surface of concrete to be sacked with neat cement and water after surface is cleaned and patched. 3.5 DEFECTIVE CONCRETE A. Should concrete tests indicate that the strength iso not as specified, or if concrete has excessive pockets, or if reinforcing steel is exposed, or if concrete does not in any way comply with the drawings and specifications, the defective concrete shall be removed and replaced as directed at the Contractor's expense. 3.6 CONCRETE WALKS A. Concrete Sidewalks and Walks: 1. Concrete i i dews I ks shall contorm to the general provi si oz.s of this sections and to the appripriate standard drawings. Unless otherwise specified, all sidewalks shall be four inches thick. 2. In the construction of sidewalks, the concrete shall be tamped sufficiently to bring the fins to the surface after which it shall be finished to the required grade with wooden floats, and trowelled to a finish as deteiled on the drawings. 3. When a straightedge ten feet (10') long is laid on the surface of the sidewalk, the surface shall not vary more than 1/16" from the edge of the straightedge, except at grade changes or curves. 4. Unless otherwise provided, the transverse slope of the surface of sidewalks shall be 1/4" per foot, calculated from the top of the curb to the back of the sidewalk. 5. Whei a ary walk requires repair before acceptance, rep :i r -h-.11 be made• by removing and replacing the entire walk between joints and not by refinishing the damaged portions. 3.7 CLEAN-UP A. During construction, keep the area as clean and clear as possible. Do not dispose of waste materials on the site, in pits, or otherwi-se. UFon completion of this work, remove all debris and excess materials, tools, etc., resulting from this wor% from the job site, leaving location of this work rake clean. CHAIN-LINK FENCE PART 1: GENERAL 1.1 SCPPE A. Provision of equipment, material products and labor necessary to install chain link fencing indicated on the drawings. B. The principal items of work include: 1. Chain 1 i nk fencing. 2. Concrete footings. C. Related Work Specified Elsewhere: Examine all sections for work related to the work of this section. The principal i tams of related work are: 1. Concrete. 1.2 GENERAL REQUIREMENTS A. The work of thi s secti on shal 1 be performed by •& cha i it 1 i nk fend n subcontractor who has been in the business for at least five (5� years and maintains his own shop and crews. Al I work shat 1 I accomplished under the supervision of a competent foreman who is a regular employee of the subcontractor. Said foreman shall be kept on the site for the duration of the work of this section. B. Coordination of the Work: The work of this section shall be coordinated with the work of all other trades to assure that all required inserts and attachments are properly set and that adequate provisions are mala for embedding this work where required. Co The fence height refers to the height of the fabric. D. Fence shall be provided with top rail, center rail, (as indicated) and bottom rail* E. Panels adjacent -to terminal, angle, gate and. corner posts shall be provided with horizontal brace rails. Fence over six feet (6') in height shall have in addition, 3/8" galvanized diagonal brace rods with an adjustment feature on these same panels. 1.3 REFERENCE SPECIFICATIONS AND STANDARDS A. Chai n Li nk Fence Manufacturer's Institute. i REVISIONS RIKSS0NePETF.RSeTH0MS O4TEIBYI PART 2: PRODUCTS 2.1 MATS I ALS A. Chain Link Fabric: 1. All fabric shall be chain link woven steel or iron wire and shall be heavily zinc coai.ed (hot galvanized) after weaving and shall be free of sharp protrusions and burrs. Fabric shell be one width equal to the height of the fence unless otherwise noted on the drawings. Top and bottom edges shall be knucklad� 2. Fabri c shat 1 be of No. 9 gauge wi re woven i n two -i nch, (2") mesh for all vertical surfaces. 3. The gauge of the wire shall be measured before coating: Wi iv shall be a good commercial 4uality of steel or iron wire. 4. The weight of the zinc coating on the wire shall not be less than 1.2 oz. per s.f. of uncoated wire surface, as determined by a stripping test, ASTM Designation A-90-39. L The uniformity of the coating shall be determined by the Preece Test, ASTM Designation A-239-41., Coatings shall stand without failure five (5) dips of one (1) minute each. 6. The sampling, test specimens, packing, marking, inspection, and rejection snail conform to ASTM A-117-33. �. Posts, Brace Rails, and F i tt i ngs : 1. All posts and brace rails (for panels adjacent to terminal, gate, angle and corner posts) shall be made of hot -dipped Zinc coated (galvanized) welded and seamless steel pipe of "Standard Weight". The pipe shall be coated inside and outside, and the weight of the zinc ccati ng shall be not less than 2.0 oz. per s.f. of total coated surface. Welding of posts for new chain 1 i nk fences shall not be permitted with written consent of the Owner. 2. The calculated weight of the coating and the determination of the weight shall be as described in ASTM A-120-471, and i nc 1 ud i n9 ASTM A-90-39. Pipe sizes and weights shall conform to the following schedule: Nominal Outside Weight Pipe Size Diameter Linear Inches Inches Ft_ Line posts 2 2.375 3.65 Top rail, middle a bottom rails; 1-1/4 1.660 2.27 3. The weight of pipe may vary not more than five (5) percent from that specified and the diameter may vary not more that one (1) percent under or over that specified, except for the 1.66" pipe, which may not vary more than 1/32" under that specified. 4. The finished pipe shall be reasonably straight and free from injurious defects. Alleburrs at the ends of pipe shall be removed, and the zinc coating shall be free from injurious defects and excesive roughness. 5. Tensions bars shall of heavily galvanized mind flat riteel not less than 3/16" x 3/4". 6. Tension bands and bands for securing rail ends shall be of heavily galvanized flat mild steel not less than 1/18" x 1", except for tension bands used in gates. Said tension bands shat 1 be 1/8" x 3/4". Bolts for use with tension bands and rail bands shall be cadmium, zinc, or galvanized plated, not less than 5/16" diameter. 7. All past caps shall be heavily galvanized smooth top malleable iron, designed to fit snuggly over the posts with a minimum projection of one inch (1") below top of posts. Post caps for line posts shall be designed to allow top rail to pass through same. 8. Top rail and brace rail ends shall be heavily galvanized malleable iron and shall have holes to receive 5/16" bolts for securing to rail and bands. 9. Extension sleeve, couplings for top rai 1 �o shall be one inch t1") diameter steel six inches (60) long, fitted with raised center designed to fit tightly on inside of rail. Couplings shat 1 be heavily galvanized. 10. Fabric ties for attaching fabric to posts shall be #110-1, or 3/16" aluminum, No. 9 gauge wire, or No. 11 gauge galvanized . steel wire. No. 11 gauge galvanized wire shall be used for typing -fabric tc top rails and brad rails. PMT 3: EXECUTION 3.1 I NSTALLAT I ON A. Normal Installation: 1. Fence posts shall be spaced not more than 10'-0" and shall be spaced 3t equal intervals between terminal, angle, corner, and/or gate posts, except where spacing of posts is indicated on t;.e drawings. Erect all posts vertically. 2. All fences shall be installed with top rails and mid -rails, (as indicated on plans). Top rail shall pass through post caps and shall be secured at ends with rail end fittings and bands. _ le Fabric shall be secured to.posts with ties spaced not more than 16" apart. Where No. 9 gauge galvanized steel wire or #1100-0 or 3;16" alumirnim is used, the tie shall be hooked at both ends. Where No. 11 gauge galvanized steel wire is used, the tie shall be wrapped not less than two (2) turns around the fabric wire at both ends. Fabric shall be secured to top rail with No. 11 gauge galvanized steel wire with ties spaced not more than 18" apart. The use of hooked ties with links will not be permitted. The ends of all tie wires shall be turned so as not to be i hazard. 4. The fence fabric shall be erected so that the bottom of the fabric shall be set to clear concrete, ground, or asphaltic concrete surfaces by 1/2". S. Concrete for post footings shall- be mixed in the fol lowi n! volumetric proportions: 1 - part Portland cement 3 - parts fine aggregate 5 - parts course aggregate (1/4" to 1-1/2*) 8 - gallons of water, or less, per sack of cement 6. Posts shall be set plumb and true to line. Top ornaments shall be'installed on all posts. 7. Posts shall be set so that the top of the eye of the ornament shall be level with the top of the fabric. 8. The brace rails, in panels adjacent to end, corner or angle posts, shall be rigidly secured to posts by means of rail end fittings and rail end bands. The brace rail assembly at all terminal, corner, angle, and gate posts shall consist of a horizontal brace rail set the mid -height of the fence. The brace rail shall be omitted on fences six feet (6') or less in - height. SOUTHRIDGE VILLAGE PARK -PHASE III LANDSCAPE ARCHITECTURE 9. Fabric shall be tightly stretched, secured to posts with fabric ties spaced at intervals not exceeding 16% At end, corner, angle, and gate posts, fabric shall be secured with tension bars extending full height of the fence. Said tension bars shall be secured to the posts with bolted tension bands spaced not.more than 14w a art. l:abric shat installed on property ne side of posts unit otherwise indicated on the drawings. - 10. Local trenching and shaping shall be performed where required to permit uniform top and bottom alignment of fence. 11. Where details and/or notes on the drawings indicated departure from the preceeding specifications, fence work shall be done is accordance with said details and/or notes only to extent indicated. 3.2 COMPLETION ;A. Upon completion, the fence shall be complete and continuous units between points indicated with all required parts, accessories and fittings provided and installed, though not specifically mentioned herein. ASPHALTIC CONCRETE PAVING PMT 1: GENERAL X1.1 SCOPE �A. Asphaltic concrete paving work includes but is not limited to the following: 1. Fine grading. 2. Base course. 3. Prime coat and tack coat. 4. Asphaltic concrete surface course. 5. -Striping and marking. a. Related work specified elsewhere: 1. Grading. 2. Cast -in -Place Concrete, 1.2 GUARANTEE A. In addition to the guarantee specified, the Contractor shall repair or restore to first class condition those portions of asphaltic concrete paving in which -plant growth, creeping, shovi ngo cracking, raveling, softening, excessive or uneven settling due to improper placing, or defective materials that appear or become apparent within one (1) year from date of acceptance by the Owner. 1.3 ;.9ECIFICATION REFERENCES A. All materials and construction shall conform to the applicable Sections and Paragraphs of the "Standard Specifications for Public Works Construction" 1982 edition and amendments thereto. Delete payment clause. 1.4 MISCELLANEOUS MATER I ALS A. Striping and Marking Paint: . i nyl base, asphal' adhering paint similar to Arvco No. 201 it equal. PART 2: EXECUTION 2.1 FINE GRADING A. The earth subgrade shall be fine graded t the elevations required for installation of the aggregate base and paving as noted on drawings. Where aggregate base is to be played, the subgrade shall not vary from the specified grade by more than 0.04 foot. Variations within the above specified tolerances shall be compensating so that the average grade specified is met. 2.2 SUBGRADE PREPARATION A. 'The upper twelve inches (12") of the subgrade and base material should be scarified and compacted to at least 95% of the maximum dry density. 2.3 ASPHALT CONCRETE PAVEMENT A. Prime coat, tack coat, and asphalt concrete shall be applied, spread, and compacted. B. All paving areas when completed shall be given a flood test showing surfaces free of standing water or puddles. Any areas that do not meet this test shall be corrected as directed. 2.4 STRIPING AND MARKING A. Paint stripes and markings as detailed on the drawings with approved specified paint. Lines shall not be less than four inches (y) in width, two (2) coats required, 2.5 PROTECTION AND CLEAN-UP A. Protect from all traffic during a i 1 operations and until paving is sealed ana dry. d. After completion of work, remove all emulsion spill or splash from adjoining surfaces remove all debris, excess materials, and equipment, and leave site in a neat and orderly condition. STONE M ONRY UNITS PART 1: GENERAL 1.1 SCOPE A. Furnish and install all masoory work as shown on the drawings and as specified in this section. 1.2 SUBMITTALS A. Guarantee: Contractor shall issue a written guarantee that all wort executed urMrr this section shall be free from defects of materials and workmanship for a period of two (2) years from acceptance by Owner. PART 2: PRODUCTS 2.1 MATERIALS A. River Rock Cobblestones: All cobbles shall be sound, durable, hard, resistant to abrasion and free from laminations, weak cleavage planes and undesirable weathering effects. 8. Water shall be from a potable source. C. Portland cement shall meet the requirements of the concrete secties of these specifications and shall be low alkali type. D. Hydrated lime shal 1 conform to Type S hydrated lime given the specifications for hydrated lime for masonry purposes, ASTM designation C207. E. Sand and Pea Gravel: sand for mortar shall conform to the Specifica- tions for Aggregates for Masonry Mortar, ASTM designation C144, except that not less. than three percent (3%) of the sand shall pass the No. 100 sieve. Sand and pea gravel for grout shall conform to the requirements for concrete aggregate in the concrete section of these specifications, except for grading.- In addition, the pea gravel shall be well graded with 100% passing the 3/8 sieve. DEVELOPER `_'TF 1 N1NTY, LTD" 14735 VILLAGE DRIVE FONTANk CALIFORNIA 92335 F. Mortar shall be composed of not less than 1/4 part nor more than 1/2 part hydrated lime, one part Portland cement, not less than 2- 1/4 sand: conform to ASTM specification C270. The total clay content, including that in the sand, shall not exceed two percent (2%) of the sand content or six percent (6%) of the cement content. G. Grout shall consist of one (1) part Portland cement to three (3) parts of'sand. Sufficient water shall be added to the grout 6o cause it to flow into all joints of the masonry. Where practicable, pea gravel shall be added to the grout in approved amounts to make a workable mix, but the confined mix shall not exceed 1:3:2. PART 3: EXECUTION 3.1 CONSTRUCTION A. Mixing of Mortar and Grout: The sand, cement, and water shall b&N placed in the mixer in that order for each batch of mortar or grout and shall be mixed for a period of at least two (2) minutes, the lime shall then be added and mixing continued as long as needed to secure a uniform mass, but in no case less than ten (10) minutes. Mixers of at least on -sack capacity shall be used. Retempering of mortar by dashing water over the mortar is not permitted. Mortar of grout that is not used within the hour after the initial mixing shall be removed from the work. I. Laying: 1. All river rock cobble work to be tight joint and to have an appearance of being "stacked'. Show_ as little grout as possible. - 2. Care shall be taken to avoid mortar or great splotches an the surface of the cobbles. Mort&. and gout spilled on the cobbles -hall be washed off before it dries. C. Reinforcement: Use masonry ties as specified on plans. 0. Joints: 1. Joint4ng tools to be of high grade steel that will not blacken mortar joi nts when joints are tooled to produce a dense, hard surface. •2. Remove all projections as a result of tooling by brushing lightly immwdiately after tooling with a soft bristle brush. E. Construction Joints: When grouting is stopped for a period of one (1) hour or longer, horizontal construction joints shall be formed by stops ng the grout pour 1-1/2" minimum below the top of the uppermost unit. 3.2 CLEAN-UP ' A. Upon completion, remove all excess mortar, dirt, stains, and other defacements with stiff wire brushes and clean water. Acid shall not be used. All face joints shall be brushed clean, thoroughly wet and repointed where required with pointing mortar packed solidly into i-oi vis. - CONSTRUCTION SPECIFICATIONS r RECORD DRAWINGS -N. I DATE DRAWN CHECKED F• H V JO e ND. IF EET 4 3: .t 1214 EAST GREEN..STREET, PASADENA; CALIFORNIA 91106 213/681-3408 lo t 27461 CALL! ARROYO-,1SAN JUAN CAPISTRANO, CA 92675. ?14/661-712' VVI 4PW