Addendum 1.pdf
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- Attached to
- Fire Extinguisher Inspection and Maintenance
- Solicitation number
- ARFQ 0211 GSD2700000003 2
- Issued by
- Kanawha County, West Virginia
About this file
Addendum 1 Summary
This is an Addendum 1 document issued by the State of West Virginia for ARFQ GSD2700000003, a Fire Extinguisher Inspection, Maintenance, and Repairs solicitation. The addendum includes vendor technical questions and responses clarifying key aspects of the request for quotation. The primary clarification addresses pricing structure, indicating that the pricing page represents per-extinguisher pricing rather than site-specific extinguisher counts. Additionally, the addendum addresses vendor account access requirements, directing potential bidders to contact the West Virginia Purchasing Division regarding WVOASIS account creation, which is the state's online procurement system. The document requires all vendors to acknowledge receipt of addenda by completing the included Addendum Acknowledgment Form and submitting it with their bid to expedite document processing, with failure to acknowledge potentially resulting in bid disqualification. All provisions of the original solicitation and other addenda not modified by this document remain in full force and effect.
The addendum does not contain pricing information, set-aside provisions, incumbent contractor details, or funding source specifications. The document serves primarily as a procedural and clarification tool for interested vendors, ensuring uniform understanding of the solicitation requirements across all potential bidders. The file includes construction-related technical specifications for sections addressing waste management, earth moving, concrete paving joint sealants, and cast-in-place concrete, which appear to be supporting documentation incorporated by reference rather than direct components of the fire extinguisher services solicitation.
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Text version
Revised 6/8/2012
SOLICITATION NUMBER: [Insert RFQ, RFP No.] Addendum Number: [Insert Number]
The purpose of this addendum is to modify the solicitation identified as [insert RFQ, RFP No.] (“Solicitation”) to reflect the change(s) identified and described below.
Applicable Addendum Category:
[ ] Modify bid opening date and time
[ ] Modify specifications of product or service being sought
[ ] Attachment of vendor questions and responses
[ ] Attachment of pre-bid sign-in sheet
[ ] Correction of error
[ ] Other
Description of Modification to Solicitation:
Additional Documentation: Documentation related to this Addendum (if any) has been included herewith as Attachment A and is specifically incorporated herein by reference.
Terms and Conditions:
1. All provisions of the Solicitation and other addenda not modified herein shall remain in full force and effect.
2. Vendor should acknowledge receipt of all addenda issued for this Solicitation by completing an Addendum Acknowledgment, a copy of which is included herewith.
Failure to acknowledge addenda may result in bid disqualification. The addendum acknowledgement should be submitted with the bid to expedite document processing.
ARFQ GSD2700000003 Fire Extinguisher Inspection/Maintenance/Repairs Vendor Technical Questions and Responses
Q1. Are you providing extinguisher count information for each of the sites?
A1. No. The pricing page represents per extinguisher pricing.
Q2. Also, I am new to working in the WV area, and I do not currently have access to WV Oasis. Is that something you are able to provide?
A2. You will need to contact the West Virginia Purchasing Division for questions pertaining to WVOASIS and how to create an account.
Revised 02/10/2021
ADDENDUM ACKNOWLEDGEMENT FORM
SOLICITATION NO.:
(Check the box next to each addendum received)
| Addendum 1.pdf |
| Building 34 Specs.pdf |
| ADPE328.tmp |
| SECTION 017419 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section includes administrative and procedural requirements for the following: |
| 1. Recycling nonhazardous demolition waste. |
| 2. Disposing of nonhazardous demolition and construction waste. |
| 1.2 DEFINITIONS |
| A. Demolition Waste: Site improvement materials resulting from demolition or selective demolition operations. |
| B. Disposal: Removal off-site of demolition and construction waste and subsequent recycling, reuse, or deposit in landfill or incinerator acceptable to authorities having jurisdiction. |
| C. Recycle: Recovery of demolition or construction waste for subsequent processing in preparation for reuse. |
| 1.3 QUALITY ASSURANCE |
| A. Waste Management Plan Conference: Conduct conference at Project site with owner representative. |
| PART 2 - EXECUTION |
| 2.1 PLAN IMPLEMENTATION |
| A. Site Access and Temporary Controls: Conduct waste management operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities. |
| 2.2 DISPOSAL OF WASTE |
| A. General: Except for items or materials to be recycled, or otherwise reused, remove waste materials from Project site and legally dispose of them in a landfill or incinerator acceptable to authorities having jurisdiction. |
| 1. Except as otherwise specified, do not allow waste materials that are to be disposed of accumulate on-site. |
| 2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas. |
| B. Disposal: Remove waste materials from Owner's property and legally dispose of them. |
| END OF SECTION 017419 |
| ADP7680.tmp |
| SECTION 312000 - EARTH MOVING |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section Includes: |
| 1. Preparing subgrades for asphalt paving. |
| 2. Excavating and backfilling for asphalt paving. |
| 3. Sub-base course and base course for asphalt paving. |
| 1.2 DEFINITIONS |
| A. Backfill: Soil material used to fill an excavation. |
| B. Base Course: Aggregate layer placed between the sub-base course and concrete paving. |
| C. Borrow Soil: Satisfactory soil imported from off-site for use as fill or backfill. |
| D. Drainage Course: Aggregate layer supporting the slab-on-grade that also minimizes upward capillary flow of pore water. |
| E. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated. |
| 1. Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions without direction by Architect. Unauthorized excavation, as well as remedial work directed by Architect, shall be without additional compensation. |
| F. Fill: Soil materials used to raise existing grades. |
| G. Sub-base Course: Aggregate layer placed between the subgrade and base course for concrete. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below sub-base, drainage fill, drainage course, or topsoi... |
| H. Utilities: On-site underground pipes, conduits, ducts, and cables, as well as underground services within buildings. |
| 1.3 QUALITY ASSURANCE |
| A. Pre-excavation Conference: Conduct conference at the Agency’s Building 34 located 100 Municipal Plaza, Weirton, West Virginia 26062. |
| 1.4 PROJECT CONDITIONS |
| A. Utility Locator Service: Notify utility locator service for the area where Project is located before beginning earth moving operations. |
| PART 2 - PRODUCTS |
| 2.1 SOIL MATERIALS |
| A. General: Provide borrowed soil materials when enough satisfactory soil materials are not available from excavations. |
| 1. Unsatisfactory soils include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction. |
| B. Engineered Fill: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch (37.5-mm) sieve and not more than 12 percent passing a N... |
| C. Bedding Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; except with 100 percent passing a 1-inch (25-mm) sieve and not more than 8 percent passing a No. 200 (0... |
| D. Drainage Course: Narrowly graded mixture of [washed ]crushed stone, or crushed or uncrushed gravel; ASTM D 448; coarse-aggregate grading Size 57; with 100 percent passing a 1-1/2-inch (37.5-mm) sieve and 0 to 5 percent passing a No. 8 (2.36-mm) si... |
| PART 3 - EXECUTION |
| 3.1 PREPARATION |
| A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth moving operations. |
| B. Protect and maintain erosion and sedimentation controls during earth moving operations. |
| C. Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials. |
| 3.2 EXCAVATION, GENERAL |
| A. Unclassified Excavation: Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil materials, and obstructions. No changes in the Contrac... |
| 1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials. |
| 3.3 SUBGRADE INSPECTION |
| A. Proof-roll or tamp subgrade. Do not proof-roll or tamp wet or saturated subgrades. |
| B. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Architect, without additional compensation. |
| 3.4 STORAGE OF SOIL MATERIALS |
| A. Stockpile borrowed soil materials and excavated satisfactory soil materials without intermixing. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust. |
| 1. Stockpile soil materials away from the edge of excavations. |
| 3.5 SOIL FILL |
| A. Place and compact fill material in layers to required elevations as follows: |
| 1. Under walks and pavements, use satisfactory soil material. |
| B. Other soil materials, such as a drainage course or subbase or base courses, may still be required over fill. |
| 3.6 SOIL MOISTURE CONTROL |
| A. Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content. |
| 1. Do not place backfill or fill soil material on surfaces that are muddy, frozen, or contain frost or ice. |
| 2. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight. |
| 3.7 COMPACTION OF SOIL BACKFILLS AND FILLS |
| A. Place backfill and fill soil materials in layers not more than 8 inches (200 mm) in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches (100 mm) in loose depth for material compacted by hand-operated tampers. |
| B. Place backfill and fill soil materials evenly on all sides of structures to required elevations, and uniformly along the full length of each structure. |
| C. Compact soil materials to not less than the following percentages of maximum dry unit weight according to ASTM D 698: |
| 1. Under steps and pavements, scarify and re-compact top 12 inches (300 mm) of existing subgrade and each layer of backfill or fill soil material at 95 percent. |
| 3.8 GRADING |
| A. General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements. |
| B. Site Rough Grading: Slope grades to direct water away from buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerances: |
| 1. Pavements: Plus or minus 1/2 inch (13 mm). |
| 3.9 SUBBASE AND BASE COURSES UNDER PAVEMENTS AND WALKS |
| A. Place sub-base course and base course on subgrades free of mud, frost, snow, or ice. |
| B. On prepared subgrade, place sub-base course and base course under pavements and walks as follows: |
| 1. Shape sub-base course and base course to required crown elevations and cross-slope grades. |
| 2. Place sub-base course and base course that exceeds 6 inches (150 mm) in compacted thickness in layers of equal thickness, with no compacted layer more than 6 inches (150 mm) thick or less than 3 inches (75 mm) thick. |
| 3. Compact sub-base course and base course 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 698. |
| 3.10 FIELD QUALITY CONTROL |
| A. Testing Agency: Contractor shall engage a qualified geotechnical engineering testing agency to perform tests and inspections. |
| B. Allow testing agency to inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements. |
| C. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; re-compact and retest until specified compactio... |
| 3.11 PROTECTION |
| A. Protecting Graded Areas: Protect newly graded areas from traffic, freezing, and erosion. Keep free of trash and debris. |
| B. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions. |
| C. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing. |
| 1. Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to the greatest extent possible. |
| 3.12 DISPOSAL OF SURPLUS AND WASTE MATERIALS |
| A. Remove surplus satisfactory soil and waste materials, including unsatisfactory soil, trash, and debris, and legally dispose of them off Owner's property. |
| END OF SECTION 312000 |
| ADPDF5E.tmp |
| SECTION 321373 - CONCRETE PAVING JOINT SEALANTS |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section Includes: |
| 1. Cold-applied joint sealants. |
| 1.2 ACTION SUBMITTALS |
| A. Product Data: For each joint-sealant product indicated. |
| B. Pavement-Joint-Sealant Schedule: Include the following information: |
| 1. Joint-sealant application, joint location, and designation. |
| 2. Joint-sealant manufacturer and product name. |
| 3. Joint-sealant formulation. |
| 4. Joint-sealant color. |
| 1.3 INFORMATIONAL SUBMITTALS |
| A. Product certificates. |
| B. Product test reports. |
| C. Preconstruction compatibility and adhesion test reports. |
| 1.4 QUALITY ASSURANCE |
| A. Testing Agency Qualifications: An independent testing agency qualified according to ASTM C 1021. |
| B. Pre-installation Conference: Conduct conference at State of West Virginia Building 34 located 100 Municipal Plaza, Weirton, West Virginia 26062. |
| 1.5 MATERIALS |
| A. Compatibility: Provide joint sealants, backing materials, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer based o... |
| B. Colors of Exposed Joint Sealants: Black |
| 1.6 COLD-APPLIED JOINT SEALANTS |
| A. Single-Component, Non-sag, Silicone Joint Sealant for Concrete: ASTM D 5893, Type NS. |
| 1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following]: |
| a. Crafco Inc., an ERGON company; RoadSaver Silicone or equal. |
| b. Dow Corning Corporation; 888 or equal. |
| c. Pecora Corporation; 301 NS or equal. |
| B. Single-Component, Self-Leveling, Silicone Joint Sealant for Concrete: ASTM D 5893, Type SL. |
| 1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: |
| a. Crafco Inc., an ERGON company; RoadSaver Silicone SL or equal. |
| b. Dow Corning Corporation; 890-SL or equal. |
| c. Pecora Corporation; 300 SL or equal. |
| C. Multicomponent, Pourable, Traffic-Grade, Urethane Joint Sealant for Concrete: ASTM C 920, Type M, Grade P, Class 25, for Use T. |
| 1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: |
| a. Pecora Corporation; Urexpan NR-200 or equal. |
| 1.7 JOINT-SEALANT BACKER MATERIALS |
| A. Round Backer Rods for Cold-Applied Joint Sealants: ASTM D 5249, Type 3, of diameter and density required to control joint-sealant depth and prevent bottom-side adhesion of sealant. |
| B. Backer Strips for Cold-Applied Joint Sealants: ASTM D 5249; Type 2; of thickness and width required to control joint-sealant depth, prevent bottom-side adhesion of sealant, and fill remainder of joint opening under sealant. |
| 1.8 PRIMERS |
| A. Primers: Product recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from pre-construction joint-sealant-substrate tests and field tests. |
| PART 2 - EXECUTION |
| 2.1 INSTALLATION |
| A. General: Comply with joint-sealant manufacturer's written installation instructions for products and applications indicated unless more stringent requirements apply. |
| B. Cleaning of Joints: Clean out joints immediately before installing joint sealants. |
| C. Joint-Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated. |
| D. Install joint-sealant backings of kind indicated to support joint sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement c... |
| 1. Do not leave gaps between ends of joint-sealant backings. |
| 2. Do not stretch, twist, puncture, or tear joint-sealant backings. |
| 3. Remove absorbent joint-sealant backings that have become wet before sealant application and replace them with dry materials. |
| E. Install joint sealants using proven techniques that comply with the following and at the same time backings are installed: |
| 1. Place joint sealants so they directly contact and fully wet joint substrates. |
| 2. Completely fill recesses in each joint configuration. |
| 3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability. |
| F. Tooling of Non-sag Joint Sealants: Immediately after joint-sealant application and before skinning or curing begins, tool sealants according to the following requirements to form smooth, uniform beads of configuration indicated; to eliminate air p... |
| 1. Remove excess joint sealant from surfaces adjacent to joints. |
| 2. Use tooling agents that are approved in writing by a joint-sealant manufacturer and that do not discolor sealants or adjacent surfaces. |
| G. Provide joint configuration to comply with joint-sealant manufacturer's written instructions unless otherwise indicated. |
| H. Clean off excess joint sealant or sealant smears adjacent to joints as the work progresses, by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur. |
| END OF SECTION 321373 |
| ADP2B5D.tmp |
| SECTION 033000 - CAST-IN-PLACE CONCRETE |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes. |
| B. Related Sections: |
| 1. Section 312000 "Earth Moving" for drainage fill under slabs-on-grade. |
| 1.2 ACTION SUBMITTALS |
| A. Product Data: For each type of product indicated. |
| B. Design Mixtures: For each concrete mixture. |
| 1.3 INFORMATIONAL SUBMITTALS |
| A. Material certificates. |
| B. Material test reports. |
| 1.4 QUALITY ASSURANCE |
| A. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment. |
| 1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities." |
| B. Testing Agency Qualifications: An independent agency, qualified according to ASTM C 1077 and ASTM E 329 for testing indicated. |
| C. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents: |
| D. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixtures. |
| E. Pre-Installation Conference: Conduct conference at the Agency’s Building 34 located 100 Municipal Plaza, Weirton, West Virginia 26062.. |
| PART 2 - PRODUCTS |
| 2.1 FORM-FACING MATERIALS |
| A. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material. Provide lumber dressed on at least two edges and one side for tight fit. |
| 2.2 STEEL REINFORCEMENT |
| A. Plain-Steel Welded Wire Reinforcement: ASTM A 185/A 185M, plain, fabricated from as-drawn steel wire into flat sheets. |
| B. Supports: Chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing welded wire reinforcement in place. Manufacture supports from steel wire, according to CRSI's "Manual of Standard Practice. |
| 2.3 CONCRETE MATERIALS |
| A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project: |
| 1. Portland Cement: ASTM C 150, Type I/III gray. Supplement with the following: |
| a. Fly Ash: ASTM C 618 |
| B. Normal-Weight Aggregates: ASTM C 33, graded. |
| 1. Maximum Coarse-Aggregate Size: 1-inch (25 mm) nominal. |
| 2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement. |
| C. Water: ASTM C 94/C 94M and potable. |
| 2.4 ADMIXTURES |
| A. Air-Entraining Admixture: ASTM C 260. |
| B. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admix... |
| 1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A. |
| 2. Retarding Admixture: ASTM C 494/C 494M, Type B. |
| 3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D. |
| 4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F. |
| 5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type G. |
| 6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II. |
| 2.5 CURING MATERIAL |
| A. Clear, Waterborne, Membrane-Forming Curing and Sealing Compound: ASTM C 1315, Type 1, Class A. |
| 2.6 RELATED MATERIALS |
| A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber. |
| 2.7 CONCRETE MIXTURES |
| A. Prepare design mixtures for each type and strength of concrete, proportioned based on laboratory trial mixture or field test data, or both, according to ACI 301. |
| B. Cementitious Materials: Use fly ash, pozzolan, ground granulated blast-furnace slag, and silica fume as needed to reduce the total amount of portland cement, which would otherwise be used, by not less than 25 percent. |
| C. Admixtures: Use admixtures according to manufacturer's written instructions. |
| 1. Use water-reducing, high-range water-reducing or plasticizing admixture in concrete, as required, for placement and workability. |
| 2. Use water-reducing and retarding admixture when required by high temperatures, low humidity, or other adverse placement conditions. |
| 3. Use water-reducing admixture in pumped concrete, concrete for heavy-use industrial slabs and parking structure slabs, concrete required to be watertight, and concrete with a water-cementitious materials ratio below 0.50. |
| 2.8 FABRICATING REINFORCEMENT |
| A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice." |
| 2.9 CONCRETE MIX DESIGN |
| A. Concrete mix shall be designed to achieve the following properties: |
| 1. Compressive Strength: 4500 psi |
| 2. Air Entrainment: 6% |
| 3. Water/Cement Ratio: 0.45 |
| 2.10 CONCRETE MIXING |
| A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M and ASTM C 1116/C 1116M and furnish batch ticket information. |
| 1. When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes. |
| PART 3 - EXECUTION |
| 3.1 FORMWORK |
| A. Design, erect, shore, brace, and maintain formwork, according to ACI 301, to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads. |
| B. Construct formwork so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117. |
| C. Chamfer exterior corners and edges of permanently exposed concrete. |
| 3.2 EMBEDDED ITEMS |
| A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be ... |
| 3.3 STEEL REINFORCEMENT |
| A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing and supporting reinforcement. |
| 1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before placing concrete. |
| B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that reduce bond to concrete. |
| C. Accurately position, support, and secure reinforcement against displacement. Locate and support reinforcement with bar supports to maintain minimum concrete cover of two inches (2”). |
| 3.4 JOINTS |
| A. General: Construct joints true to line with faces perpendicular to the surface plane of concrete. |
| B. Construction Joints: Install so strength and appearance of concrete are not impaired, at locations indicated or as approved by the Architect. |
| C. Contraction Joints in Slabs-on-Grade: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of concrete thickness as follows: |
| 1. Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint to a radius of 1/8 inch. Repeat grooving of contraction joints after applying surface finishes. Eliminate groover tool marks on concrete ... |
| 2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch wide joints into concrete when cutting action will not tear, abrade, or otherwise damage the surface and before concr... |
| D. Isolation Joints in Slabs-on-Grade: After removing formwork, install joint-filler strips at slab junctions with vertical surfaces, such as column pedestals, foundation walls, grade beams, and other locations. |
| 3.5 CONCRETE PLACEMENT |
| A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed. |
| B. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide... |
| 1. Consolidate placed concrete according to ACI 301. |
| C. Cold-Weather Placement: Comply with ACI 306.1. |
| D. Hot-Weather Placement: Comply with ACI 301. |
| 3.6 FINISHING FORMED SURFACES |
| A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes and defects repaired and patched. Remove fins and other projections that exceed specified limits on formed-surface irregularities. |
| B. Related Unformed Surfaces: At horizontal offsets, and similar unformed surfaces adjacent to formed surfaces, strike off smooth and finish with a texture matching adjacent formed surfaces. Continue final surface treatment of formed surfaces unifor... |
| 3.7 FINISHING SLABS |
| A. General: Comply with ACI 302.1R recommendations for screeding, re-straightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces. |
| B. Scratch Finish: While still plastic, texture concrete surface that has been screeded and bull-floated or darbied. Use stiff brushes, brooms, or rakes to produce a profile amplitude of 1/4 inch in one direction. |
| 3.8 CONCRETE PROTECTING AND CURING |
| A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 301 for hot-weather protection during curing. |
| B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb./sq. ft. x h before and during finishing operations. Apply according to manufacturer's written ... |
| C. Cure concrete according to ACI 308.1, by the following method: |
| 1. Curing and Sealing Compound: Apply uniformly to slab indicated in a continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial applicat... |
| 3.9 CONCRETE SURFACE REPAIRS |
| A. Defective Concrete: Repair and patch defective areas when approved by the Architect. Remove and replace concrete that cannot be repaired and patched to Architect's approval. |
| 3.10 FIELD QUALITY CONTROL |
| A. Testing and Inspecting: Contractor shall engage a qualified testing and inspecting agency to perform field tests and inspections and prepare test reports. |
| END OF SECTION 033000 |
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| Check Box7: Off |
| Check Box8: Off |
| Check Box9: Off |
File details come from the government source that posted it. Updated .