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HomeMy WebLinkAboutBID - 5664 CONCRETE REQUIREMENTS FOR UTILITIES ANNUALAdministrative Services Purchasing Division CITY OF FORT COLLINS INVITATION TO BID BID #5664 Sealed bids will be received and publicly opened at the office of the Director Of Purchasing and Risk Management, PO Box 580, 215 North Mason St., 2nd floor, Fort Collins, Colorado 80524, at the time and date noted on the bid proposal and/or contract documents. If delivered, they are to be delivered to 215 North Mason Street, 2nd Floor, Fort Collins, Colorado 80524. If mailed, the address is P.O. Box 580, Fort Collins, 80522-0580. Bids must be received at the Purchasing Office prior to 3:00p.m. (our clock), January 29, 2002. Special Instructions All bids must be properly signed by an authorized representative of the company with the legal capacity to bind the company to the agreement. Bids may be withdrawn up to the date and hour set for closing. Once bids have been accepted by the City and closing has occurred, failure to enter into contract or honor the purchase order will be cause for removal of supplier's name from the City of Fort Collins' bidders list for a period of twelve months from the date of the opening. The City may also pursue any remedies available at law or in equity. Bid prices must be held firm for a period of forty-five (45) days after bid openings. Submission of a bid is deemed as acceptance of all terms, conditions and specifications contained in the City's specifications initially provided to the bidder. Any proposed modification must be accepted in writing by the City prior to award of the bid. Only bids properly received by the Purchasing Office will be accepted. All bids should be clearly identified by the bid number and bid name contained in the bid proposal. No proposal will be accepted from, or any purchase order awarded, to any person, firm or corporation in default on any obligation to the City. Bids must be furnished exclusive of any federal excise tax, wherever applicable. Bidders must be properly licensed and secure necessary permits wherever applicable. Bidders not responding to this bid will be removed from our automated vendor listing for the subject commodities. The City may elect where applicable, to award bids on an individual item/group basis or on a total bid basis, whichever is most beneficial to the City. The City reserves the right to accept or reject any and all bids, and to waive any irregularities or informalities. Sales prohibited/conflict of interest: no officer, employee, or member of City Council, shall have a financial interest in the sale to the City of any real or personal property, equipment, material, supplies or services where such officer or employee exercises directly or indirectly any decision - making authority concerning such sale or any supervisory authority over the services to be rendered. This rule also applies to subcontracts with the City. Soliciting or accepting any gift, gratuity, favor, entertainment, kickback or any items of monetary value from any person who has or is seeking to do business with the City of Fort Collins is prohibited. 215 North Mason Street • 2nd Floor • P.O. Box 580 • Fort Cyllins, CO 80522-0580 • (970) 221-6775 • FAX (970) 221-6707 REV. SYM: 1.0 This specification sets forth minimum requirements for the making, delivery and off-loading of concrete mixtures and sand & water mix, as described in attachments A through D of this document, for use by the City of Ft. Collins Light and Power utility. Finishing will be by the City. 1.1 Specific requirements for design of the items) to be bid are listed in attachment(s) to this document. 2.0 2.1 American Society for Testing and Materials (ASTM) Standards, 26th edition, © 1989, or later edition. 2.1.1 American Concrete Institute (A.C.I.) standards, m 1989, or later revision. 3.0 GENFRAT, RBO ITR - FNTS FOR CONCRETE PRODUCTION & D - •TV -RY Production, transportation, and off loading shall be by a company specializing in providing concrete mixtures and services normally associated with concrete production and delivery. Personnel at the botching and mixing plant, as well as the delivery driver shall be qualified and experienced. 3.1 MATERIALS 3.1.1 Cement shall be standard brand Portland cement, conforming to ASTM C 150 for Type I -II. 3.1.2 Water shall be potable, clean and free from objectionable quantities of silty organic matter, alkali, salts and other impurities. 3.1.3 Fine Aggregate shall be clean, hard natural sand conforming to ASTM C 33. 3.1.4 Coarse Aggregate shall be hard, durable, clean crushed stone or gravel conforming to ASTM C 33. L REV. SYM: 3.1.5 Air Entraining Agent shall conform to ASTM C 260. The air entraining agent shall be added to the batch in a portion of the mixing water. The solution shall be batched by means of a mechanical hatcher capable of accurate measurement. 3.1.6 Admixture may be added to concrete mixes to control the set, effect water reduction and increase workability. The admixture shall be a water -reducing normal or retarding admixture conforming to ASTM C 494 but shall contain no calcium chloride. The required quantities of cement shall be used in the mix regardless of weather or not any admixture is used. the quantity of admixture used and the method of mixing shall be in accordance with the manufacturer's instructions. 3.1.7 Fly Ash shall conform to ASTM C 618 Type C or F. 3.1.8 Water, or other adders, added a the job site by the truck driver shall be the responsibility of the providing company, unless directed by Light and Power personnel. 3.1.9 The temperature of the material, when off-loaded from the delivery truck shall not exceed 90° F. In cold weather conditions, the temperature of material at the time of mixing shall not be less than that indicated in the following table for corresponding outdoor temperature (in shade) existing at the time of placement. outdoor T=perature Concrete Temtinerature Below 300 F. 700 F Between 30° F. & 450 F 600 F Above 45° F. 45° F 3.2 CONCRETE BATCHING AND HANDLING 3.2.1 The ready -mix batch plant equipment and facilities must comply with the requirement of ACI 304 .and ASTM C 94. 3.2.2 Concrete shall be measured, mixed, and delivered in accordance with ASTM C 94. All concrete not placed within 1 1/2 hours of initial contact of cement and water shall be rejected. 3.2.3 Where additional water is added to concrete mixes, it shall be mixed thoroughly for 40 revolutions of drum or 3-1/2 minutes at mixing speed, whichever is greater. r REV. SYM: 3.3.2 Bidder agrees to on site plant inspections without prior notice both prior to bid award and during the period of the contract. Inspections will be during normal working hours. 4.0 DELIVERY 4.1 Material shall be delivered to the job site, at various locations around Ft. Collins, in truck mixers of the revolving drum type. Trucks shall be equipped with a mixing water tank. 4.2 Response time from order, to product delivery to the work site, shall not exceed 2 hours unless agreed otherwise by Light and Power. 4.3 At the city's option, it may be necessary for one delivery truck to be standing by at the work site ready to unload upon completion of delivery from another truck. 4.4 A delivery ticket shall be prepared for each load of material delivered. A copy of each ticket shall be handed to the Light and Power Crew Chief (or his designate) by the truck operator at the time of delivery. Tickets shall show the mix identification, the number of cubic yards delivered, the outdoor temperature in the shade, the time at which the cement was added, and the numerical sequence of the delivery. 5.1 Written mix design shall be included with the bid proposal. 5.2 Design mix shall contain all admixtures required by these specifications and proposed by the bidder to be used in the mixture. 5.3 In lieu of designing new mixes for each bid proposal, existing mix designs meeting all requirements specified for each mix and used successfully on previous bids may be used provided the following is submitted with the bid proposal% A. Report of mix design and previous test results for that exact mix. B. Reports of at least 3 sets of 7 and 28-day compressive strength tests for ready -mix concrete, or 3 sets of 24 hour and 28-day compressive strength testa for Flow -Fill backfill mix made during the last six months. C. Reports of compliance tests of fine and coarse aggregates made during the last six months. 7 REV. SYM: G 6.1 Tests, consisting of aggregate gradation tests, slump tests, air content tests, temperature testing, and/or the securing of compression test cylinders, may be made at the discretion of Light and Power. These tests will be performed by an independent testing laboratory selected by the city. The costs for field tests will be borne by Light and Power, unless the tests show failure to meet specifications outlined in this document. In the event of failure, the costs for testing, and all expenses incurred by Light and Power to remove and replace the defective materials, if necessary, shall be borne by the company providing the material. 7.1 Material purchased under this specification shall be from the suppliers listed in Appendix A. Suppliers not listed may submit written proposals demonstrating compliance with this specification and request addition to the approved suppliers list prior to the next request for bids. In addition to inclusion on Approved Suppliers List, suppliers must satisfy all requirements of this specification to be acceptable. In order to be added to the Approved Supplier list (appendix A of this document), a perspective bidder must complete the following requirements and submit the information to: City of Ft. Collins Purchasing and Risk Management P.O. BOX 580 Ft. Collins, CO 80522 Requests for clarifications or information should be directed to: Doug Martine Associate Distribution Engineer (970) 224-6152 REV. SYM: 7.2 In order to be added to the approved supplier list, the following must be submitted prior to the request for bids: 7.2.1 written mix design. 7.2.2 Certification by an independent laboratory of the city's choice. Certification will include a plant inspection to determine bidder's ability to adhere to the requirements of this specification, including conformance to referenced ACI and ASTM standards. Inspection and certification will be at the expense of the City. A written request for inspection and certification may be submitted to the address above. 7.2.3 Certified test reports from two sets of compression test cylinders, each from different batches. Reports for ready mix concrete shall include two at 7 days cure, and two at 28 days cure. Reports for Flow -Fill backfill shall include two at 24 hours cure, and two at 28 days cure. Compression test cylinders shall be cast and stored as specified in ASTM C 31. Laboratory cured compression test cylinders for Ready -Mix concrete shall be at least 15% greater than the minimum specified strength. 7.2.4 Certified results of slump tests from each of the two batches. slump tests shall conform to ASTM C 172. 7.2.5 The above tests shall be performed and certified by an independent testing laboratory approved by the City, and be dated no earlier than 24 months prior to bid opening. with written concurrence from the City, test results exceeding 24 months old may be submitted. 7.2.6 Sand & Water mix is exempt from qualification test requirements. 7.2.7 Test reports shall include at least the following information: S.Description of Material tested. 2.Source of Concrete Aggregate and Cement. 3.Cement Type and Brand. 4.Manufacturer and Brand Name of Admixtures. 5. Proportions of Concrete Mixed Per cubic Yard. 6.Test Results for each property specified for Design Mix. 7.Date of batch preparation. 8.Date of break tests. 9. City of Ft. Collins Specification Number. lo.Slump of mix, in inches. 11.Breakage strength in pounds per square inch. 12.5ignature of a representative of the testing laboratory. 7.2.8 The above qualification tests shall be performed at the expense of the company requesting inclusion in the Approved suppliers List. 7.2.9 Three references other than the City of Ft. Collins, from the previous 12 months, business: 1.Name of Companyt Addresat Contact Person & Phone No. 2.Name of Companyt Addresat Contact Person & Phone No._ 3.Name of Company: Address: Contact Person & Phone No. 8.0 WITHDRAWAL• OF CONTRACTUAL• AWARD Purchase order is contingent on conformance with these specifications and attachments. The City reserves the right at any time to cancel the purchase contract, if in the opinion of the City, the product or delivery does not meet specifications, even if non -conforming material has previously been accepted. At the discretion of the City, a supplier providing non -conforming material may be removed from the Approved suppliers list for an indefinite re- evaluation period of not less than two years. 9.0 &VALUATION OF PROPOSALS 9.1 In evaluation the proposals, the Purchaser will consider whether the Bidder can perform the contract and provide the services specified within the time specified without delay or interference. In addition, the following and any other factors that determine which proposal best serves the interests of the City will be considered. Failure to comply with the requirements of this specification, including 3 positive references, will result in disqualification of the bid. 9.1.1 Proposal price 9.1.2 Qualification Compression Teat reports (for concrete mixtures). 9.1.3 Qualification Slump Test reports (for concrete mixtures). 9.1.4 Written mix design. 10 REV. SYM: 9.1.5 Aggregate compliance report. 9.1.6 certification as outlined in this specification. 9.1.7 The character, integrity, reputation, judgment, experience, efficiency, and quality of performance of previous contracts or services. 9.1.8 The material bid meets all referenced specifications, without exception (check one): 0 YES 13 NO (attach explanation) 9.1.9 At the discretion of the City, the bid award may be split between two or more bidders. 11 January 2002 APPENDIX A Approved Suppliers Specification 366-501 The following vendors are approved for providing all materials to the City of Fort Collins: Aggregate Industries Lafarge 12 REV. SYM: 4 MIX PERFORMANCE 24 HOUR STRENGTH 8 psi Minimum 12 psi Maximum 28 DAY STRENGTH 60 psi Maximum Maximum aggregate size = 1" Cement - Type I -II Ideal (ASTM C 150) SLUMP -- at point of placement 5" Minimum 8" Maximum MIX PROPORTIONS (per Cubic Yard of Concrete) Cement - 0.45 sacks 42# Water - 39 gallons 325# Air (Entrapped) - 1.5% 1" Aggregate - ASTM C 33, Size No. 57 1700# Sand - ASTM C 33 1845# TOTAL 3912# ABSOLUTE VOLUME 0.21 Cu. Ft. 5.20 Cu. Ft. 0.41 Cu. Ft. 10.17 Cu. Ft. 11.24 CU, Ft, 27.23 Cu. Ft. Theoretical Unit Weight - 143.7#/Cu. Ft. B 1.5% air Theoretical Yield - 27.23 Cu. Ft. 8 1.5% air % Sand of Total Aggregate - 52% NOTE: Aggregate Weights are based upon materials being in a saturated surface -dried condition. 13 REV. sYM: 28 DAY STRENGTH 3000 psi Minimum Maximum aggregate size - 3/4 " Minimum cement content - 5.5 -sacka per cu. yd. Fly ash may be used at the bidders option as a partial replacement for cement of not more that 15% by weight of Portland cement in the design mix. Air entrainment to 6%, plus or minus 1% SLUMP - at point of placement 3" Minimum 4 " Maximum Concrete supplied shall be suitable for finishing. 14 Freight terms: unless otherwise noted, all freight is F.O.B. Destination, Freight Prepaid. All freight charges must be included in prices submitted on proposal. Discounts: any discounts allowed for prompt payment, etc., must be reflected in bid figures and not entered as separate pricing on the proposal form. Purchasing restrictions: your authorized signature of this bid assures your firm's compliance with the City's purchasing restrictions. A copy of the resolutions are available for review in the Purchasing Office or the City Clerk's Office. Request Resolution 91-121 for cement restrictions. Collusive or sham bids: any bid deemed to be collusive or a sham bid will be rejected and reported to authorities as such. Your authorized signature of this bid assures that such bid is genuine and is not a collusive or sham bid. Bid results: for information regarding results for individual self -stamped envelope and a bid tally will be mailed to you office 7 days after the bid opening. c � Jam s B. O'Neill ll, CPPO, FNIGP ctor of Purchasing and Risk Management bids send a self-addressed, . Bid results will be posted in our SA 10/01 0 REV. SYM: MIX PRRFORMANCR 28 DAY STRENGTH l000 psi Minimum Maximum aggregate size = 3/8 " Minimum cement content = 4 sacks per cu. yd. Fly ash may be used at the bidders option as a partial replacement for cement of of more than 15% by weight of Portland cement in the design mix. Air entrainment - None required SLUMP - at point of placement 71, Minimum 91, Maximum 15 REV. SYM: MTX PERFORMANCE Approximately 3200 lbs. of sand with 50 - 55 gal. of water, depending on moisture content of sand. This mix is expected to flow unassisted, around underground electrical equipment such as vaults, conduits, and streetlight poles. 16 CITY OF FORT COLLINS BID PROPOSAL BID #5664 CONCRETE REQUIREMENTS FOR UTILITIES BID OPENING: JANUARY 29, 3:00 p.m. (our clock) WE HEREBY ENTER OUR BID FOR THE CITY OF FORT COLLINS' REQUIREMENTS FOR SAND AND WATER MIX, NON -YIELDING BACKFILL, SLURRY CONCRETE AND READY - MIX CONCRETE AS USED BY THE LIGHT AND POWER UTILITY PER THE BID INVITATION AND ANY REFERENCED SPECIFICATIONS. SPECIFICATIONS AND APPROVED VENDORS: Since 1990 the City of Fort Collins Light and Power Utility required all firms supplying Ready Mix Concrete, Slurry Concrete, Non -Yielding Backfill or Sand and Water Mix to conform to the attached Material Specification #366-501. An important aspect of the specifications is Section 7.0 Requirements to be an Approved Supplier (prequalification). Due to the extensive test data, certification of the supplier's plant, and references requested, only those Suppliers listed on Appendix A Approved Suppliers Specification 366-501 may bid these requirements. All Approved Suppliers must be located within 5 miles of Fort Collins' urban growth area. Firms wishing to be approved can submit all required documentation for approval at any time. Light and Power and Purchasing personnel will analyze the documentation and determine the firm's status of approval. The firm will be notified immediately of their status, but will not be placed on the approval list until material requirements are bid again. The full set of Material Specifications is attached. Section 1.1, Scope, pertains to each material (Non -Yielding Backfill, Ready Mix Concrete, etc.) and firms can bid only on the material they are approved to supply in Appendix A. Bids submitted for unapproved materials will be disqualified. ADMIXTURES: Due to the detailed specifications for these materials, there will be no adders bid for admixtures. BID AWARD: The City may elect to award each material individually or as a total package, whichever is in the best interest of the City. Additionally, each material may be split between two or more Bidders. Contractor must enter into the attached services agreement and provide the required insurance. This agreement is effective for one year from the date on the service agreement. At the option of the City, the Agreement may be extended for additional one year periods not to exceed four (4) additional one year periods. Pricing changes shall be negotiated by and agreed to by both parties and may not exceed the Denver - Boulder CPI-U as published by the Colorado State Planning and Budget Office. Written notice of renewal shall be provided to the Service Provider and mailed no later than ninety (90) days prior to contract end. SA 10/01 ESTIMATED QTY. DESCRIPTION UNIT $ 1. 1,800 cu. yds. Sand and Water Mix per the Specifications of Attachment D 2.15,000 cu. yds. Non -yielding Backfill per the Specifications of Attachment A 3. 1,000 cu. yds. Slurry Concrete per the Specifications of Attachment C 4. 130 cu. yds. Ready -Mix Concrete per the Specifications of Attachment B DELIVERY CHARGES: $ /cy Over 5 miles from urban growth area of Fort Collins, non -mountains, ADD $ per load mile. Over 5 miles from urban growth area of Fort Collins, in mountains, ADD $ per load mile. Minimum load is c.y.; additional charges if less than minimum load is required will be $ c.y./load. BIDDER'S STATEMENT: I certify that my firm has been approved to supply the materials above and further certify that all materials supplied do now and will, for the term of this award, comply with the attached Material Specification #366-501. 1 understand any deviation from the Specifications can disqualify my bid for that material. FIRM r3'/I (Signature) (Printed) (Title) SA 10/01 4 January 2002 APPENDIX A Approved Suppliers Specification 366-501 The following vendors are approved for providing all materials to the City of Fort Collins: Aggregate Industries Lafarge SA 10/01 THE CITY OF FT. COLLINS Light and Power Department MATERIAL SPECIFICATION NO: 366-501 TITLES READY MIX CONCRETE SLURRY CONCRETE FLOW FILL (a.k.a. Non -Yielding) BACKFILL SAND & WATER MIX PREPARED BYS APPROVED BY: APPROVED BYS Associate Distribution Engineer Bob Hover Planning & Distribution Engineer Allen Boushee systems Engineering Manager 1 REV. SYM: A. REVISION DRSCRIPmiON change Flow -Fill backfill Specification for APPROVED 4-10-90 DM 2s day compressive strength from 60 psi min. and 90 psi max. to 60 psi max. (no min.) B. Add Ft. Collins Ready -Mix to the approved 7-16-93 DM supplier's list (appendix A) for slurry concrete. C. Add Bestway concrete to the approved 5-30-91 DM supplier's list (appendix A) for ready -mix concrete, Flow -Fill backfill, and sand and water mix. D. Add Bestway concrete to the approved 6-25-92 DM supplier's list (appendix A) for slurry concrete. R. Remove Bestway Concrete from the approved 11-14-94 BV suppliers list per letter from James O'Neill F. Correct Zip Code on mailing address of Purchas 6-5-95 DM and Risk Management. G. correct phone number of Doug Martine 6-8-95 DM 2 REV. SYM: di LIST OF ACTIVE PAGES ORIGINAL PAGES ADDED PAGES SHEET REV. SHEET REV. SHEET REV. NO. SYM. NO. SYM. NO. SYM. 2 A,B,C,D E,F,G 13 A 12 B,C,D,E 8 F,G REV. SYM: Title Page Revision Record List of Contents scope of specification Applicable Reference Documents General Requirements Delivery Mix Designs Field Control Testing Approved supplier Requirements Withdrawal of Contractual Award Evaluation of Proposals Approved suppliers (Appendix A) Mix Description (Attachments A through D) 1 2 3 4 5 5 7 7 s e 10 10 12 13-16