437th Contracting Squadron, 102 Long Street, Charleston AFB, SC 29404-4829

56 -- HOT MIX ASPHALT, BASE COURSE, PRIME AND TACK COAT SOL F38610-97-R0005 DUE 041597 POC SrA T. Scot Gagnon, Contract Specialist, (803) 566-5155 ext:238 Elaine Garbett, Contracting Officer, (803) 566-5155 ext:230. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation, proposals are being requested and a written solicitation will not be issued. Solicitation Number F38610-97-R0005 is issued as a Request for Proposal (RFP). The solicitation document and incorporated provisions and clauses are in effect through Federal Acquisition Circular 90-45. This solicitation is unrestricted. The Standard Industrial Code (SIC) is 5032. The size standard is 500 employees. The work will include all labor, supervision, tools, materials, equipment, transportation, application where necessary, and delivery of the following: GENERAL DESCRIPTION: Supplier will be responsible for the mix design, preparation, delivery, and where noted, application of construction materials for the reconstruction of a Taxiway at North Auxiliary Airfield, North, SC. as specified. Construction performed by the government will consist of replacing a Taxiway 1,140 ft by 75 ft. Estimated area of surface is approximately 94,875 sq. ft. Materials to be supplied include: Asphalt Concrete, Base Course (stone), Prime Coat, and Tack Coat. Supplier must be capable of conducting quality control testing of the specified materials. All equipment used in the QC process must have been certified within past 12 months. Supplier will make his/her plant accessible to the Government/Government's Quality Assurance Laboratory. At a minimum materials/services will be made available Monday through Saturday. Base Course Times of Delivery: 0700 hours to 1800 hours, Bituminous Hot Mix Times of Delivery: 0700 hours until days production run is complete (approx. 730 tons). Materials requested will be delivered to the project site within 24 hours of telephone notification by the Government. Sunday Delivery of Hot Mix and Tack Coat materials may be required. Base Course (stone) and the Bituminous Hot Mix, open/gap gradation will not be allowed. Only well graded Base Course (stone) and Bituminous Hot Mix that meet the specified gradation will be approved. Supplier shall supply trip tickets to the Government representative for Base Course/Bituminous Hot Mix deliveries. Two copies will be provided upon delivery of material. For Bituminous Hot Mix trip ticket will indicate the time material was placed in the truck and temperature of the material at that time. First Bituminous Hot Mix production day will be for the sole purpose of a test strip and will be of limited quantity. A minimum of 24 hours will pass until full production will be initiated. Line item 01: Base Course Specifications (Est.Qty: 8150 tons): Aggregates shall consist of clean, sound, durable particles of crushed stone, crushed gravel, or crushed slag and shall be free from coatings of clay, silt, vegetable matter, and other objectionable materials and shall contain no clay balls. Crushed stone and gravel shall be free from flat, elongated, soft, or disintegrated pieces. Crushed gravel retained on a No. 4 shall have at least 90% by weight of particles with at least two fractured faces and 100% by weight with at least one fractured face. Determine grain size in accordance with (IAW) ASTM C-136 and amount of material finer than 200 mesh sieve IAW ASTM C-117. Aggregate, other than slag, shall have a percentage of wear not exceeding 45 when tested IAW ASTM C-131, Grading A. Slag shall be an air-cooled, blast furnace product having a dry weight of not less than 65 pounds per cubic foot when tested IAW ASTM C-29 and shall consist of angular fragments uniform in density and quality. Soil binder material, that portion of material passing the No. 40 sieve, shall be of such composition that the composite material conforms to the requirements specified herein. It shall be of such nature that it can be compacted readily with watering and rolling to a firm, stable base. Aggregate shall conform to one of the following sizes (open/gap gradation is not acceptable): Percentage by Weight Passing Square Mesh Lab Sieves Sieve 1 2 2 -- Inch 100 -- 11/2 Inch 70-100 100 1 -- Inch 45-80 60-100 1/2 -- Inch 30-6030-65 No. 4 20-50 20-50 No. 10 15-40 15-40 No. 40 5-25 5-25 No. 200 0-10 0-10 Portion of material passing the No. 40 Sieve shall have a liquid limit of not more than 25 and a plasticity index of not more than 5 as determined by ASTM D-4318. Prepare samples in accordance with ASTM D-2217, Procedure A. For proposed aggregate blend the Supplier shall supply to Government for acceptance the following, IAW the specified ASTM procedure: 1. Gradations, 2. Atterberg Limits, 3. Percent of Wear, and 4. Weight of Slag Line item 0002. Bituminous Hot Mix Specifications (Est.Qty 2940 tons) Supplier is responsible for developing mix design. Job mix formula (JMF) to be submitted by within 10 days of award for review and approval shall include, a) gradation, percent passing each sieve, b) Percent of asphalt cement, c) percent of each aggregate, d) AC Grade and certification, e) No. of blows of hammer compaction per side of molded specimen, f) mixing temperature, g) laboratory compaction temperature, h) temp-viscosity relationship of the asphalt cement, i) plot of combined gradation on the 0.45 power gradation curve, j) graphical plots of stability, flow, air voids, voids in mineral aggregate, and unit weight versus asphalt content, k) specific gravity and absorption of each aggregate, l) percent natural sands, m) percent fractured faces, n) percent elongated particles, o) Tensile Strength Ratio, p) antistrip agent (if required), and q) list of all modifiers. Once the JMF is approved by the Government all modifications will require notification and approval prior to their use. In addition, the Supplier will submit a Plant Quality Control Plan, which will contain as a minimum: a) Stockpile Management, b) proportioning, c) mixing and transportation, and d) control charts with action and suspension limits as defined below (to be plotted by Supplier and submitted to Government daily) SieveIndividual Measurement Limits Running Average of Last 4 Samples Limits Action Suspension Action Suspension 3/4 Inch 0% 0% -- -- 1/2 Inch 6% 9% 4% 5 3/8 Inch 6% 9% 4% 5 No. 4 6% 9% 4% 5 No. 16 5% 7.5% 3.0% 4 No. 50 3% 4.5% 2% 3 No. 200 2% 3% 2% 3 Asphalt Content 0.45% 0.70% 0.30% 0.5 Air Voids 1.0% 1.5% 0.60% 0.8 Aggregates shall consist of crushed stone, crushed gravel, crushed slag, screenings, natural sand and minerals, as required. Coarse aggregate shall consist of sound, tough, durable particles free from adherent films of matter that would prevent thorough coating and bonding and free from organic matter and other deleterious substances. The coarse aggregate shall meet the following: a) percentage of wear shall not be greater than 40% after 500 revolutions in accordance with (IAW) ASTM C-131, b) percentage of loss shall not be greater than 12 % after 5 cycles IAW ASTM C-88 (using magnesium sulfate), c) at least 75% by weight of aggregated retained on the No. 4 sieve shall have at least 2 or more fractured faces. The area of each face shall be equal to at least 75% of the smallest mid-sectional area of the particle, d)particle shape shall be essentially cubical and the aggregate shall not contain more than 20%, by weight, of flat or elongated particles as defined by a 3:1 Ratio IAW ASTM-4791, and e) slag shall be air-cooled, blast furnace slag, and shall have a compacted weight of not less than 70 lb/cu ft IAW ASTM C-29. Fine aggregates shall consist of clean, sound, durable, angular shaped particles. Aggregate particles shall be free from coatings of clay, silt, or any other objectionable matter and shall contain no clay balls. Fine aggregate shall meet the following: a) quantity of natural sand added to the aggregate blend shall not exceed 15% by weight of coarse and fine aggregate and material passing the No. 200 sieve, b) fine aggregate shall have a sand equivalent value greater than 45 IAW ASTM D-2419, and c) fine aggregate portion of the blended aggregate shall have an uncompacted void greater than 43% IAW ASTM C-1252, Method A. Mineral filler shall be non-plastic material meeting requirements of ASTM D-242. Aggregate gradation, when tested IAW ASTM C-136 and C-117, shall conform and shall not vary from the low limit on one sieve to the high limit on the adjacent sieve or vice versa, but graded uniformly from coarse to fine. (Single Mix) Percentage by Weight Passing Square Mesh Laboratory Sieves Sieve Grad 1 Sieve Grad 1 3/4 -- Inch 100 No. 16 26-48 1/2 -- Inch 82-96 No. 30 18-38 3/8 -- Inch 69-89 No. 50 11-27 No. 4 53-73 No. 100 6-18 No. 8 38-60 No. 200 3-6 Asphalt cement binder shall conform to AASHTO MP-1, PG: 64-16. Certification of test results will be provided by Supplier. Asphalt mix shall be composed of a mixture of well-graded aggregate, filler if required, and asphalt material. The several aggregate fractions shall be sized, handled in separate size groups, and combined in proportions to meet the grading requirement of the job mix formula (JMF).Mix must be approved by Government. Mix will be design using procedures in MS-2 for the criteria specified (No. of blows -- 75, Stability -- 1800 pounds absolute minimum during construction, Flow (0.01 in) -- 8 -- 16, Air Voids 3 to 5%, and VMA 14% min. If Tensile Strength Ratio (TSR) of the composite mixture IAW ASTM D-4867, is less than 75, the aggregates shall be rejected or the asphalt mixture treated with an approved anti-stripping agent until a TSR of not less than 75 is produced. Prior to full production a test section of limited will be produced. Full production will not commence until QC results are analyzed and adjustments made. Supplier shall have a fully qualified representative available for consultation. Use of storage bins for temporary storage of hot mix will be permitted as follows: a) the asphalt mix may be stored in surge bins for period of time not to exceed 3 hours and b) the asphalt mix may be stored in insulated bins for a period of time not to exceed 24 hours. If Government determines that there is an excessive amount of heat loss, segregation, or oxidation of the mixture due to storage, no overnight storage will be allowed. Trucks shall have tight, clean beds, lightly coated with a minimum amount of paraffin oil, or other approved material. When necessary to ensure mix is delivered at specified temperature truck beds shall be insulated, heated, or covered with tarps. Temp of AC Cement delivered to mixer shall not exceed 325 degrees F. Aggregate shall be heated and dried and shall not exceed 350 degrees F when asphalt is added and not lower than is required to obtain complete coating and uniform distribution. Aggregates and asphalt cement shall be weighed or metered in the amounts specified in the JMF. Each batch shall be documented by the Supplier. Delivery shall be scheduled as to minimize stopping and starting of the paver. Supplier shall maintain and provide control charts which are to be included in the plant Quality Control Plan. Line item 0003. Asphaltic Tack Coat (Est.Qty: 10,540 sq yds) Supplier shall supply and apply tack coat in accordance with specifications. Tack coat must be applied to dry surface when ambient temperature is greater than 50 degrees F. The Tack Coat will be ASTM D-977, Type SS-1 or ASTM D-2397, Type CSS-1 emulsified asphalt diluted with equal parts of water. The base asphalt used to manufacture the emulsion shall show a negative spot when tests in accordance with AASHTO T-102 using standard naphtha. Supplier shall apply in quantities of not less than 0.05 gallon or more than 0.15 gallons of diluted emulsion per square yard at a temperature between 75 and 130 degrees F. Supplier to supply Government with certified test report for emulsified asphalt. Line item 0004. Rapid Setting Asphaltic Prime Coat (Estimated Quantity: 10,540 sq yards) Supplier shall supply and apply prime coat in accordance with specifications. Prime coat must be applied to dry surface when ambient temperature is greater than 50 degrees F. Prime coat will be ASTM D-2028, Grade RC-70Cutback Asphalt. ASTM D-977, Type RS-1 or ASTM D-2397, Type CRS-1 emulsified asphalt as appropriate. Supplier shall apply at a pressure range of 25 to 75 pounds per square inch and at a rate of not less than 0.20 gallons no more than 0.30 gallons of bituminous material per square yard. Prime Coat to be applied at a temperature range of 75 to 130 degrees F. Supplier to supply Government with data and materials used and temperature viscosity relationships. Government requires delivery to be FOB Destination to the job site located at North Auxiliary Airfield, North, SC. POC: Capt Mark Damico. Provision 52.212-1, Instruction to Offerors-Commercial Items applies to this acquisition. Contractor must include with offer a completed copy of the provision at 52.212-3, Offeror Representations and Certifications-Commercial Items Clause 52.212-4 Contract Terms and Conditions-Commercial Items applies to this acquisition. 52.212-5, Contract Terms and Conditions Required to Implement Statutes or Executive Orders-Commercial Items. Contractor agrees to comply with the following FAR clauses, which are incorporated in this contract by reference, to implement provisions of law or executive orders applicable to acquisitions of commercial items: paragraph (a) 52.233-3. paragraph (b) 52.222-26, 52.222-36, 52.222-37, 52.225-3, 52.225-9, 52.225-21. 52.216-18(a)17 Apr thru 2 June,(b)(c), 52.216-19(a)Line item 01-02, 10 ton, Line item 03-04 10 sq yd, (b)(1)Line item 01-02, 9000 ton, Line item 03-04, 15,000 sq yds (b)(2) Line item 01-02, 9000 ton, Line item 03-04 15,000 sq yds, (3)N/A.(c)(d) 5. 52.216.22(d) 2 Jun 97. Discussions may not be conducted. Offers must be submitted not later than 15 days from the date this notice is published. All proposals shall be submitted to 437 Contracting Sq, 102 Long St, Charleston AFB, SC. 29404. All proposals shall be submitted to the address listed above no later than 2:00 PM EST. Point of contact for all information regarding this acquisition is SrA Scot Gagnon, 803-566-5155 ext:238, Fax 803-566-2850. (0084)

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