Site work for a road / highway in Southwick, Massachusetts. Completed plans call for site work for a road / highway.

FY26 Crack Sealing. Required for DCAMM contracts over $150,000, Highway Division contracts over $50,000. Question Deadline 06/10/2025 at 5:00 PM ET Questions shall be sent in writing to Randy Brown, DPW Director, 454 College Highway, Southwick, MA 01077, or to rbrown@southwickma.gov. The work to be done under this Contract shall include providing all labor, equipment and materials necessary to perform all operations in connection with the cleaning and sealing of random cracks in bituminous concrete pavements, including vegetation removal and sterilization of cracks where necessary. 2. Contractor shall supply the Town with Catalog Sheets and/or Material Safety Data Sheets (MSDS) for every material to be used in connection with the work. 3. Equipment used in the performance of the work required shall be subject to the approval of the Town and maintained in a satisfactory working condition at all times. 4. All materials shall be applied in accordance with manufacturer's recommendations. 5. Prior to work, the Owner will provide a list of which streets are to be rehabilitated. 6. Prior to work, the Owner shall decide whether traffic control is necessary. The Owner will pay for traffic control costs directly, but the Contractor will be responsible to order and schedule details. 7. The Contractor shall provide suitable methods to protect the surface treatment from traffic until the new surface will support traffic without damage. All traffic control methods used shall be in accordance with MUTCD standards and shall be employed in a safe manner. 8. All workmanship shall be of the highest quality, and any excess of spilled sealant shall be removed from the pavement by approved methods and discarded. Any workmanship determined to be below the high standards of the particular craft involved will not be accepted, and will be corrected and/or replaced as required by the Owner. Description The work covered by this section of the specification consists of furnishing all plant, labor, equipment and materials necessary to perform all operations in connection with the cleaning and sealing of construction and random cracks in bituminous concrete pavements on Town roads, including vegetation removal and sterilization of cracks, where necessary. 2. Material Crack sealant shall be a modified asphalt-fiber compound designed specifically for improving the strength and performance of the parent asphalt sealant. a. The asphalt binder shall consist of a blend of neat asphalt binder, chemically modified crumb rubber (CMCR), and a polymer package, all of which meet the following specifications: i. The binder will meet PG 64-28E requirements after modification including: 1. PG grade requirements of AASHTO M320 2. Requirements of AASHTO TP70/MP19 ii. Modification, at a minimum, shall consist of 7% crumb rubber, and the maximum particle size for the recycled tire rubber shall be 80 mesh (#80 sieve) iii. The asphalt supplier shall provide testing for both the neat and modified asphalt binders iv. See below for typical modified test results for 64-28E with crumb rubber: DSR ORIGINAL _ kPa >1.00 @ 64_ C. Fail temp = 76+_ C DSR RTFO _ kPa >2.20 @ 64_ C. Fail temp = 76+_ C MSCR _ JNR (MSCR unit of measure): 3.2 E <0.5% @ 64_ C _ R3200 (Average % Recovery): >70% DSR PAV _ kPa <6000 @ 64_ C BBR _ Stiffness <300 @ -18_ C. M-Value >0.300 @ -18_ C Fiber reinforcing materials shall be short-length polyester fibers having the following properties: Length* Elongation at Break (ASTM D2256-90) Melting Point (ASTM D3418-82) Crimps/Inch (ASTM D3937-90) Cross Section Denier (ASTM D1577-90) Tensile Strength (ASTM D2256-90) Diameter Specific Gravity (ASTM D792-91) 0.25 in. _ 0.02 in. 35% _ 3% >475 degrees F (246 degrees C) None Round 4.5 Nominal dpf >70,000 psi 0.0008 in. ** 1.32 to 1.40 * At temperatures ranging from ambient to maximum finished product mix temperature ** Subject to Normal Variations The modified asphalt-fiber compound shall be mixed at a rate of 8% fiber weight to weight of asphalt cement. This compound having the same chemical base provides compatibility and exhibits excellent bond strengths. The fiber functions to re-distribute high stress and strain concentrations that are imposed on the sealant by thermal sources, traffic loading, etc. 3. Equipment Equipment used in the performance of the work shall be subject to approval by the Owner, and maintained in a satisfactory working condition at all times. a. Air Compressor: Air compressors shall be capable of furnishing not less than 100 cubic feet of air per minute at not less than 90 lbs. per square inch pressure at the nozzle. The compressor shall be equipped with traps that will maintain the compressed air free of oil and water. b. Manually operated, gas powered air-broom or self-propelled sweeper designed especially for use in cleaning highway and airfield pavements shall be used to remove debris, dirt and dust from the cracks. c. Melter: The unit used to melt or maintain the crack sealant compound at the recommended application temperature shall be the indirect fired type. It shall be equipped with a remote heat exchanger and hot oil circulation pump capable of maintaining a consistent temperature of the heat transfer oil. The heat transfer oil shall be circulated to all sides and the bottom of the vat containing the crack sealant compound making a continuous loop back to the heat exchanger and having a flash point of not less than 600 degrees F. The melter shall be equipped with a satisfactory means of agitating the crack sealant at all times. This may be accomplished by continuous stirring with mechanically operated paddles and/or by a circulating gear pump attached to the melter. The melter must be equipped with a thermostatic control calibrated between 200 degrees F and 550 degrees F, and must be capable of pumping an 8% fiber content blend. 4. Preparation of Cracks a. Debris and Vegetation Removal: All cracks shall be blown clean and sterilized by use of a propane air torch generating 2,000 degrees F and 3,000 feet/second velocity to eliminate all vegetation, dirt, moisture and seeds. All debris removed from the cracks shall be removed from the pavement surface immediately by means of a power sweeper, hand or air broom. b. No crack sealant material shall be applied in wet cracks or where frost, snow or ice is present, nor when the ambient temperature is below 25 degrees F. 5. Preparation and Placement of Sealant a. The asphalt-fiber compound shall be thoroughly mixed for a minimum of one hour before application can begin. To ensure a uniform fiber distribution in the sealant, and also to limit fluctuations in the application temperature of the blended material, the contractor must have a full melter kettle of sealant mixed, heated to the proper application temperature, and ready for testing at the start of each work day. Once that batch of sealant is emptied from the melter kettle, crack sealing operations will cease for the remainder of the day. No new materials will be allowed to be added to the melter kettle during the work day under any circumstances. Minimum application temperature shall be 320 degrees F. b. Sealant shall be delivered to the pavement cracks through a high pressure hose line and applicator shoe. Diameter of the applicator shoe is not to exceed 3.5 inches. Once the pavement cracks are sealed, the width of the sealant on the pavement (overbanding) shall be no greater than 3 inches. When traffic requires immediate use of the roadway, a boiler slag aggregate shall be broadcast over the cracks to prevent the sealant from being picked up. 6. Performance a. Properly formulated and mixed asphalt fiber compound overbanding shall not be greater than three inches (3") in width. Penalties will be imposed upon the contractor for overbanding beyond three inches (3"). b. The Owner may require the contractor to successfully perform a 200 foot test strip in the field prior to commencing work under the contract. c. Manufacturer's certificate of material compliance will be furnished to the Owner certifying conformance to the above material specifications, including the following: _ Performance Grade of Unmodified Asphalt: PG 64-28S (standard) _ AASHTO M-320, Table 1 _ 7% chemically-modified crumb rubber (CMCR) (Composed of 100% 80-mesh recycled tire rubber) _ 3-4% specially formulated polymer package _ Performance Grade of Modified Asphalt: PG 64-28E (able to withstand "extremely heavy" traffic loads) _ AASHTO M-320, Table 1 _ "E" Jnr 3.2 kPa @ 640C: <0.5% _ R3200 (Average % Recovery) @ 3.200 kPa: >70% _ 8% polyester reinforcing fibers