Restore - Replace Refractory ChambeR

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1 6 2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable) A0004 07/31/2016 6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE USDA APHIS NVSL See Block 6 1920 DAYTON AVE AMES IOWA 50010 , 8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (?) 9A. AMENDMENT OF SOLICITATION NO. All Offerors AG-6197-S-16-0007 9B. DATE (SEE ITEM 11) 10A. MODIFICATION OF CONTRACT/ORDER - 10B. DATED (SEE ITEM 13) CODE FACILITY CODE 11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS 1 The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers 0 is extended, 1 is not ex- tended. Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDG-MENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to this amendment, and is received prior to the opening hour and date specified. 12. ACCOUNTING AND APPROPRIATION DATA (If required) 13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS, IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14. (?) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MDE IN THE CON- TRACT ORDER NO. IN ITEM 10A. B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying offices, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b). C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF: Changes-Fixed Price 52.243-1NA D. OTHER (Specify type of modification and authority) E. IMPORTANT: Contractor 0 is not, 0 is required to sign this document and return 1 copies to the issuing office. 14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section heading, including solicitation/contract subject matter where feasible.) The purpose of this amendment is to: Provide the names of the attendee whom attended the site visit Provide Questions and Answers Provide original drawings of the incinerator The bid is due at 19 Aug 2016 @ 10:00 AM CST. The bid opening will be held at 1920 Dayton Ave, Bldg 20, Rm 1056, Ames, Iowa 50010 Offerors are reminded this is a secure facility and allow additional time to clear security. All parties interested in attending the Public Bid opening MUST send advance notice to Patrick. Quance@ ARS.USDA.gov See Pages 2-6 for Q&A's Except as provided herein, all terms and conditions of this document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect. 15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print) , 15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 16C DATE SIGNED BY (Signature of person authorized to sign) (Signature of Contracting Officer) tem #1 Industry standards normally include expansion joints in larger refractory panels. Does the USDA require or want expansion joints to be placed in the new refractory walls, floor and ceiling per contractor determination ? Please clarify. Item #2 Does the USDA have a requirement for expansion joint material or specifications on expansion joint sizing and placement ? Or should contractor self determine, per industry standards, the expansion joint material, placement and size requirements ? Please clarify. Item #3 Under "tasks" is states to remove and replace metal sheeting on top of secondary chamber. Removal will be in sections. Will replacement of top sheeting be allowed to be done in sections or is one large piece required? Please clarify. Item #4 Does the USDA have a pouring sequence for the chamber walls, floor and roof ? Walls first, roof second and floor last ? or other ? Shall contractor follow industry standards for sequencing ? Please clarify. Item #5 Secondary Burner Block Will USDA remove and replace Secondary Burner Block and associated hardware ? Secondary burner block not mentioned in "tasks" listing. Area adjacent to secondary burner block will need to be availaable for contractor to perform repairs, forming and pouring of new refractory material. Please clarify. Answers: Item #1: Is found under #6 below (1.2 B 6) Item #2: Is found under 2.2 B B. Incinerator Linings New incinerator furnace linings shall be as specified herein, as indicated, and as approved. 1. Hearth & Floor Areas PCC and SCC hearth and floor areas shall be lined with 5" thick, 3000 F rated, Super Duty quality, castable refractory. This shall be backed by 2" thick, light-weight, 2,800 F rated, insulating castable refractory. The insulating castable shall be backed by 0.25" thick, high-temperature ceramic paper. 2. Walls PCC and SCC walls shall be lined with 4" thick, 3000 F rated, Super Duty quality, castable refractory. This shall be backed by 2.5" thick, 2,600 F rated, insulating firebrick. The insulating firebrick shall be backed by 0.25" thick, high-temperature ceramic paper. 3. Ceilings PCC and SCC ceilings shall be lined with 5" thick, 3000 F rated, Super Duty quality, arch-cast, castable refractory. This shall be backed by 2" thick, light-weight, 2,800 F rated, insulating castable refractory. The insulating castable shall be backed by 0.25" thick, high-temperature ceramic paper. 4. Throat Section The throat, or flame port, section shall be lined with 4" thick, 3000 F rated, Super Duty quality, castable refractory. This shall be backed by 2.5" thick, 2,800 F rated, insulating castable refractory. The insulating castable shall be backed by 0.25" thick, high-temperature ceramic paper. 5. Cleanout & Access Doors PCC and SCC ceilings shall be lined with 4" thick, 3000 F rated, Super Duty quality, castable refractory. This shall be backed by 2.5" thick, light weight, 2,800 F rated, insulating castable refractory. The insulating castable shall be backed by 0.25" thick, high-temperature ceramic paper. 6. Expansion Joints Expansion joints shall be provided in the PCC and SCC as required, as recommended by the refractory manufacturer and as approved to prevent cracking of the linings due to thermal expansion. Shop drawings showing refractory lining details shall specifically indicate expansion joint locations. Packing material for expansion joints and related spaces shall be 2300?F ceramic fiber blanket as approved. 1.3 INCINERATOR FURNACE MODIFICATION WORK A. PCC Modifications Modify PCC as indicated to accommodate connection to the replacement waste loader chute system. B. SCC Throat Modifications Modify the throat connection to the SCC as indicated from a dual to a single flame port. PART 2 - PRODUCTS 2.1 GENERAL Provide new lining materials and components where indicated, as specified herein, and as approved. Lining materials and components shall be best of their respective classes, entirely suitable for the purposes intended, and for the designed service specified herein. 2.2 LINING MATERIALS A. High Temperature Refractory The high temperature, or hot, face refractory shall be high-density, high-strength, alumina- based, hydraulic-setting castable. It shall be Super Duty quality, conforming to ASTM C401 Standard, or approved equal, ASTM tested to 3,000 F, and with a service limit of up to 3,200 F. It shall also be low porosity and abrasion-resistant. High-temperature refractory shall be similar to Plibrico Plicast 3000, or approved equal. B. High-Temperature Insulation 1. Insulating Castable High-temperature insulating castable shall be light weight, minimum 2,800 F rated, and in conformance with ASTM C417 or approved equal. It shall be similar to Plibrico Pligun LWI 28, Kaolite 2800, or approved equal. 2. Insulating Firebrick High-temperature insulating firebrick shall 2,600 F rated in conformance with ASTM C201. It shall be Corundite LW-26, or Thermal Ceramics TC-26, or approved equal. 3. Ceramic Insulating Paper Ceramic insulating paper shall flexible and suitable for continuous use at up to 2300 F. It shall be similar to Nutek Fibratec Ceramic Fiber Paper, or approved equal. C. Expansion Joint Packing Packing for refractory expansion joints and spaces shall be 2300??F ceramic fiber blanket. It shall be Carborundum Fiberfrax Lo-Con Blanket, or approved equal, and its location shall be as recommended by the refractory manufacturer. D. Castable Reinforcement Castable refractory shall be reinforced with minimum 2 percent, Type 304 stainless steel fibers, or needles. Needles shall be manufactured by Ribbon Technologies, Inc. or as approved equal. E. Burner Blocks Refractory burner blocks furnished with each of the replacement burners shall be installed in accordance with burner manufacturer's recommendations and as approved. 2.3 APPROVED LINING MANUFACTURERS Refractory and insulation materials as specified herein or as indicated shall be as manufactured by the following companies, or approved equal: - American Fibre - Carborundum Company - J. H. France Refractories Company - McNeil, Inc., Plibrico Refractories - Thermal Ceramics - Vesuvius USA Corp Item #3: Top replacement will be allowed in sections. Yes. Item #4: Contractor shall follow industry standards. Item #5: Contractor will need to remove Secondary Burner Block as needed. Paint Specifications: PART 1 - GENERAL 1.1 WORK INCLUDED A. The work of this Section comprises the cleaning, surface preparation, priming, and repainting of exterior steel surfaces of the incinerator including primary and secondary chambers, throat connection to the SCC, new transition or connection to the replacement loader system, ash cleanout door, SCC access door, and stack support structure on top of the SCC. B. All applicable requirements specified in Division 9 - Finishes shall apply to the work specified in this Section. C. Provide all labor, materials, equipment, tools, and management services necessary for the execution and completion of work specified in this Section. . PART 2 - PRODUCTS 2.1 PAINT & PRIMER A. Primer The primer shall be an epoxy ester having a zinc-based pigment and suitable for use on steel surfaces. It shall have a heat resistance rating for continuous temperatures of at least 400 F and for intermittent temperatures of up to 500 F. Its drying time shall be less than one hour. B. Paint The new paint shall be heat-resistant, or high-temperature, silicone-based acrylic enamel formulated to withstand constant temperatures of up 400 F and intermittent temperatures up to 600 F without blistering, peeling, flaking, or discoloring. The paint shall be suitable for curing and / or drying at normal ambient, indoor temperatures, within a time period of less than 2 hours. B. The paint shall be brush applied and not spray-on type. C. Paint color will be selected by the Government based on the submittal of color charts or paint samples 2.2 MANUFACTURERS OR APPROVED EQUAL - Benjamin Moore - Hy-Tech Thermal Solutions - PPG Industries - Sherwin-Williams PART 3 - EXECUTION 3.1 GENERAL A. Commencement of Priming and Painting Work The surface preparation, priming, and painting work as specified in this Section shall be provided after the demolition and removal work specified in Section 11 02 00-Selective Demolition and Removal has been completed and before the installation of new incinerator- mounted components, such as burners, and related piping and wiring. C. Touch-up Work If the finished painting of surface areas painted under the scope of this Section becomes damaged or scraped during the course of installing incinerator-mounted components and devices, such areas shall be touched-up or repainted in accordance with procedures recommended by the paint manufacturer. Such touch-up work shall be completed prior to commencing with performance testing, 3.2 PRIME AND FINISH COATS A. Surface Preparation All exposed ferrous surfaces to be painted or repainted shall be thoroughly cleaned of rust, dirt, oil, grease, and other foreign matter. If existing paint sections or areas are found to be peeling, flaking, or blistering, paint in those areas shall be removed to bare metal by scraping and / or sanding. Surface cleaning and preparation shall be done by using solvents, hand tools, and / or power tools. B. Priming After all surfaces have been thoroughly cleaned and wiped free of dust, they shall be given a prime coat as specified herein. C. Finish Coats After the prime coat has thoroughly dried, apply two (2) full coats of specified and approved heat-resistant paint. Paint shall be applied by brush and / or roller. First coat shall be allowed to dry overnight before applying second coat, and the first coat shall be lightly sanded before the second is applied. 3.3 APPLICATION A. Paint shall be stirred before and during application to produce uniform color and density. Do not add thinners, solvents, or other paint. B. Use applicators and techniques best suited to the paint being applied as recommended by the manufacturer. Finished surfaces shall be free of brush marks, laps, roller skids, and other imperfections. C. Do not paint over nameplates, UL or other code-required labels, or equipment identification tags. Also, do not paint operating portions of valves, dampers, sensing devices, controls, motors, or similar devices. D. If there are any questions or uncertainties of which surfaces, items or components are to be painted or not painted, it is the Contractor's responsibility to obtain clarifications and directions from the Government and / or the Designated Project Representative before proceeding. If any surfaces, items, or components are painted that should not have been painted, such paint shall be thoroughly removed as expeditiously as possible. E. Surrounding surfaces and items shall be protected from damage during painting by use of protective materials that can be removed without leaving a residue, staining, or causing damage. Temporary protective coverings, painter's tape, and the like shall be removed upon completion of painting work. 3.4 DELIVERY A. Deliver paint and primer in original containers and with manufacturers' labels intact. Labels shall indicate manufacturers' names, product names, listing of pigments and vehicle constituents, color identification, and application instructions. B. Store paint materials at the project site in a single location that is protected from freezing and as directed by the Government.