Schedule C Specification.xlsx
XLSX spreadsheet 18 KB Posted
- Attached to
- Road Spray Patcher, Trailer Mounted
- Solicitation number
- RFP 171 180000001125 3
- Issued by
- Michigan
About this file
This is a Schedule C Specification document for the Mississippi Department of Transportation (MDOT) RFP Department 171, Number 180000001125, detailing specifications for a roadway spray injection patch trailer (Specification #C36-0501.18). The specification requires contractors to provide a new, latest-model spray injection patcher trailer mounted on a dual-axle highway-rated trailer. The unit must include a 250-gallon ASME-certified pressure vessel tank with electric blanket heating capable of maintaining emulsion at operational temperatures as low as 5 degrees Fahrenheit, a diesel-powered engine rated at no more than 74 HP with automatic shutdown protection, and a three-section delivery boom designed to allow single-handed operation. Additional required components include a minimum 450 CFM blower, 15 CFM air compressor, aggregate delivery system with minimum 3.5-inch ID hose, heated emulsion nozzle with low-voltage DC heating, and a 13-gallon pressurized flush system for post-operation cleaning without disassembly requirements.
The specification mandates that all materials be Omaha Orange Dupont Acrylic painted with required safety decals and signage. The trailer must feature electric brakes with brake away protection, radial tires with spare, a 3-inch adjustable towing ring, 12-gauge steel fenders, and a directional arrow board. Electrical systems must comply with federal guidelines, including 7-way round pin Berg-type connectors wired per MDOT standards with independent turn signal and stop light wiring, soldered connections with heat shrink protection, and proper wire grounding and securing. The specification explicitly prohibits certain design elements, including heating probes instead of electric blankets, conveyors or augers in aggregate or emulsion delivery systems, pump-based flush systems, and Scotch locks or wire nuts for electrical connections. The referenced make and model is the Dura Patcher P2, though contractors may propose equivalent alternatives with justification.
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Other files
| File | Type | Posted |
|---|---|---|
| Schedule B Pricing.xlsx | XLSX spreadsheet | |
| Schedule B Pricing ADD1.xlsx | XLSX spreadsheet | |
| Proposal Instructions and Vendor Questions Worksheet ADD1.docx | DOCX document | |
| Schedule A - Statement of Work.docx | DOCX document | |
| Schedule D Prosperity Regional Map.pdf | ||
| Proposal Instructions and Vendor Questions Worksheet.docx | DOCX document | |
| Schedule A - Statement of Work ADD1.docx | DOCX document | |
| ADD 1 Instructions.pdf | ||
| Standard Contract Terms.docx | DOCX document | |
| Schedule E Trailer Wiring Diagram.pdf | ||
| Schedule F - SIGMA Catalog Template.xlsx | XLSX spreadsheet | |
| Schedule C Specification ADD1.xlsx | XLSX spreadsheet |
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Text version
Sheet1
| RFP Dept. 171, No. 180000001125 | |
| Specification # C36-0501.18 Roadway Spray Injection PatchTrailer |
All items specified and furnished by the Contractor shall be new of the latest model in current production and shall include all standard features normally offered with these models CONTRACTOR must respond to each section with YES. (or additional information as requested)
If NO is indicated provide explanation and available option.
Referenced Make and Model: Dura Patcher, P2 Contract to to identify proposed make and model
| Brands or trade names are for identification purposes only and do not limit the Contractor to such brands | Make and Model | ||
| 1.0 | Basic Requirements: | ||
| 1.1 | Spray Injection design with aggregate supplied from tow vehicle by gravity feed tube. | ||
| 1.2 | Trailer mounted and rated for highway use. | ||
| 1.3 | Diesel powered with engine enclosure. | ||
| 1.4 | Electric blanket heated emulsion tank. | ||
| 1.5 | Emulsion working capacity of 250 gallons. | ||
| 1.6 | Overnight electric heating for maintaining emulsion temp. | ||
| 2.0 | Emulsion heating and storage: | ||
| 2.1 | The tank must be a pressure vessel and be ASME certified | ||
| 2.2 | The tank shall have 250 gallon capacity, 200PSI working pressure at 500 degrees | ||
| 2.3 | Insulation shall be minimum R15 rated fiberglass insulation | ||
| 2.4 | Loading hatch shall have a minimum filler opening of 12” and be equipped with t-bolt closures. | ||
| 2.5 | Clean out valve shall be minimum of 3” and will be installed at the bottom of the tank. | 84600 | |
| 2.6 | Tank will be wrapped with 2 electric blankets for overnight heating. Min. 1500W x (2) 120VAC. A thermostat and overnight heating extension cord will be included. Heating probes will not be considered for alternate as they do not allow tank pre heating and 100% use of emulsion tank volume. | ||
| 2.7 | System must be capable of maintaining heat so as to allow operation of patcher in ambient temperatures as low as 5 degrees Fahrenheit. | ||
| 3.0 | Delivery System: | ||
| 3.1 | Trailer mounted hopper with integral screen with opening for slide gate | ||
| 3.2 | Slide gate shall be air operated with min 4” stroke air ram. | ||
| 3.3 | Venturi shall be designed to draw aggregate into air stream. Must have access panel. | ||
| 3.4 | Aggregate delivery tube shall be a minimum 3.5” ID schedule 40 pipe 10 ft. in length. Designed to be rotatable for maximum life | ||
| 3.5 | Aggregate delivery hose will be min. 3.5” ID. Non-kinking, plastic wire reinforced rubber neoprene-lined hose with a min. length of 164”. | ||
| 3.6 | The delivery boom shall be a three section device that allows the operator to move throughout its full radius using only very light force from one hand, and shall be adjustable for height. | ||
| 3.7 | The boom design must keep the boom and the operator well out of the adjoining lane and the operator must be capable of placing the nozzle tip on the center stripe of a multi-lane roadway without any portion of the boom, or the operator, intruding over the center stripe. | ||
| 3.8 | A 12 volt pump shall circulate heat transfer oil through a pipe inside the emulsion tank and min. 3/8" diameter lines the full length of the hose to the emulsion nozzle, then back. All parts including: emulsion valves, hose, and nozzle will be heated by this hot fluid heating system | ||
| 3.9 | The nozzle shall be designed so it diffuses/slows down the air stream at the tip to minimize overspray. The emulsion nozzle will be slotted to create a single fan of emulsion to properly coat the aggregate. The nozzle will be low voltage DC heated to prevent material build up during cold weather operation. | ||
| 4.0 | Engine: | ||
| 4.1 | The unit will be equipped with a water cooled direct injected, diesel engine. The engine will have spin-on type oil and fuel filters. Rubber isolation engine mounts are required | ||
| 4.2 | The engine will be protected with an engine enclosure that is certified by the manufacturer. |
It will be lockable for security and provide noise reduction for operator safety The Contractor will provide a set of (3) keys
| 4.3 | Auto shutdown protection will be provided for alternator, oil pressure coolant temperature. An hour meter and RPM gauge will be included. | |
| 4.4 | The engine will be rated at no more than 74HP and be able to operate the delivery system to fill a patch with 1/4” stone @ 1100 RPM and 1 ½ “ stone at no more than 1800 RPM | |
| 4.5 | Engine cover will enclose engine, battery and air compressor. | |
| 4.6 | Engine controller must be accessible without having to open engine cover and contain the Hour Meter, RPM Gauge and shutdown for Oil, Water and Battery | |
| 4.7 | The unit will include a minimum 18 gallon diesel fuel tank | |
| 5.0 | Emulsion Flush System: | |
| 5.1 | A minimum 13 gallon pressurized vessel will be included for flushing of emulsion lines and nozzle after use. It shall be equipped with a pressure relief valve set at 110 PSI. | |
| 5.2 | A clean out container will be mounted to the frame of the machine. At end of shift, operator will place wand in container to flush emulsion lines and nozzle. No disassembly and soaking of any part of the emulsion system will be necessary. The entire nozzle clean out procedure may not get emulsion or diesel on the operator. No system using a pump will be accepted. | |
| 6.0 | Blower and Air Compressor: | |
| 6.1 | Blower will be rated at min. 450 CFM @ 7psi @ 1500 RPM | |
| 6.2 | Lobe style blower direct driven off patcher engine. | |
| 6.3 | Pop off valve set to 12 psi for protection. | |
| 6.4 | Dual stage heavy duty filter element on blower intake. | |
| 6.5 | Air muffler to reduce airflow noise required. | |
| 6.6 | Compressor to be 15CFM minimum pressure relief to be set to 95psi | |
| 6.7 | No conveyors, augers or pumps will be used in the aggregate or emulsion delivery systems. | |
| 7.0 | Paint and safety decals: | |
| 7.1 | The unit shall be painted Omaha Orange Dupont Acrylic paint. | |
| It will be equipped with required safety decals and signage | Identify safety decals and sinage equiped with |
proposed unit:
| 8.0 | Trailer: |
| 8.1 | The frame is to be constructed of minimum ¼” gusseted steel tube for safety and strength |
| 8.2 | A 3” towing ring that is adjustable in height from 15” to 30” high will be provided for lateral adjustability |
| 8.3 | Trailer will have radial tires, sized to accommodate the weight of the trailer, with a spare tire and wheel mounted to the trailer |
| 8.4 | Electric trailer brakes/ with brake away protection |
| 8.5 | The trailer shall have a dual axle leaf spring system and be rated at a GAWR (Gross Axle Weight Rating) of 12,000 lbs. |
| 8.6 | A directional arrow board will be mounted at the back of the machine and be selectable for left/right or both traffic control. |
| 8.7 | Fenders shall be a minimum of 12 gauge horizontal steel. |
| 8.8 | Tongue jack, rated to handle the capacity of the trailer/with caster wheel. |
| 8.9 | Provide a remote mounted camera assembly, to be shipped loose. |
Reference Make: ECCO Reference Model: # EC5605-WK, or equivalent
| Brands or trade names are for identification purposes only and do not limit the Contractor to such brands | Make & Model: | |
| 8.10 | Trailer Lights |
Will meet Federal guidelines for approved tail, stop and turn LED type AND, wired for turn signals independent of stop lights.
| 8.11 | Trailer Wiring Diagram, trailer connector shall be 7-way round pin Berg type , wired for turn signals independent of stop, compatible with trailers that have amber or side turn lamps, per MDOT standard trailer conector wiring diagram (Refer to Schedule E - Trailer Wiring Diagram). |
| 8.12 | All wires passing through holes in metal or non-metal wearing surfaces, which could cause wear of the insulation, shall be adequately protected by rubber or plastic grommets, and/or non-metal conduit. Ends of all wires shall be adequately anchored to prevent loosening. All wiring shall be properly secured to the trailer or engine by proper wiring hangers. |
MDOT to provide Contractor with wiring diagram
| 8.13 | All electrical connections shall be soldered and enclosed in heat shrink or in water tight junction blocks |
| 8.14 | Scotch locks and wire nuts are NOT acceptable |
END OF SPECIFICATION
&14Attachment A 059118B000000
Sheet2
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