The Table of Contents for this section is available.
1020-1 DELIVERY AND ACCEPTANCE OF ASPHALT MATERIALS.
Asphalt materials will be accepted at the source of shipment subject to the following conditions:
All asphalt transport tankers, including rail and truck tankers, shall have a sampling valve in accordance with the recommendation of the Asphalt Institute and ASTM D140, or a comparable device acceptable to the Engineer.
Each transport tanker delivering asphalt materials to the project or rail siding shall keep a running log showing the date, destination, and type and grade of material hauled on each trip. Information appearing in the log shall be printed, stamped, or written in ink and shall be available for examination upon request of the Engineer at any time.
The Contractor shall furnish with each shipment 2 copies of a delivery ticket. Both copies shall accompany the shipment and be delivered to the Engineer or his representative at the destination. The delivery ticket shall contain the following information: Delivery ticket number, date shipped, state project or purchase order number, State Laboratory assigned batch number, destination, name of consignee, trailer or car number, supplier's storage tank or batch number, quantity loaded (pounds or gallons), specific gravity or pounds per gallon at 60F., loading temperature, and net gallons at 60F.
When non-strip additive is introduced into the asphalt cement, the delivery ticket shall note the brand, grade, and percentage at which the additive was introduced.
The Contractor's asphalt materials supplier shall furnish to the Materials and Tests Unit a typical viscosity-temperature chart at the beginning of each calendar year and a new chart whenever a change in production results in a shift of 5F. or more.
The Contractor shall also furnish a statement of certification from the supplier and a separate statement of certification from the transporter. Each certification shall be signed by an authorized representative of the supplier or transporter. These certifications shall be either stamped, written, or printed on the delivery ticket, or shall be attached to the delivery ticket.
The supplier's certification shall be essentially in the following form:
"This is to certify that this shipment of _______________gallons of_________________________grade asphalt meets all requirements of the applicable N.C. Department of Transportation Specifications.
Signed_____________________________
Authorized Representative
of Supplier"
The transporter's certification shall be essentially in the following form:
"This is to certify that this transport tank was clean and
free from contaminating materials when loaded. The material transported
on the previous load in this tanker was ____________________________________.
Signed_____________________________
Authorized Representative
of Transporter"
Failure to sign the certifications by either the supplier or transporter will be cause to withhold use of the material until a sample can be taken and tested, except where an alternative testing and invoicing procedure has been preapproved by the Engineer.
The Engineer reserves the right to sample and test any shipment regardless of whether or not the above conditions have been met and to reject any material not meeting the requirements of the specifications.
1020-2 ASPHALT CEMENT.(See Standard Special Provisions)
Asphalt cement graded by viscosity shall meet the requirements of AASHTO M226, using the limits shown in Table 2 of M226. The maximum loss on heating requirements shall apply. Asphalt cement, Grades AC10 and AC20, having a loss on heating in excess of the requirements of Table 2 but not exceeding 0.75 percent may be used when the material has a history of satisfactory performance and when approved in writing by the Engineer prior to use. The spot test will not be required.
Prime coat materials will be accepted at the point of application (destination) subject to the following conditions:
1. All prime coat materials shall be delivered to the project diluted and ready for use.
2. Sampling will be made at the point of application. The Department reserves the right to sample all materials used for prime coat applications, either at the destination or at the point of origin, and to withhold acceptance of material until analysis of such samples have been made. When a material meets specification requirements, but has a history of unsatisfactory service performance, its use for construction or maintenance purposes may be restricted by the Department and such restriction will be noted on the list of approved products.
3. Proposed materials for Prime Coat Applications which are not listed as approved will be investigated upon the request of the supplier or contractor. The maximum VOC limited for the products (materials) on the approved list for prime coat applications shall not exceed 50 grams per liter of material. A Material Safety Data Sheet (MSDS), as well as a two quart sample from three different batches of the same material shall be submitted to the Materials and Tests Unit for evaluation.
4. The Sand Penetration results for a material used as a prime coat shall be:
Penetration Depth (millimeter 12 minimum
Penetration Time (seconds 90 maximum
Copies of the Sand Penetration Test procedure are available upon request from the Materials and Tests Unit.
5. Materials used as a prime coat shall have a minimum rating of "Fair" on the No-Tracking Time Test. Copies of the No-Tracking Time Test procedures are available upon request from the Materials and Tests Unit.
6. Materials used as a prime coat shall have a minimum rating of "Fair" on the Coating Ability and Water Resistance Test in Accordance with AASHTO T59.
7. For materials that will be stored longer than one day at the destination point (Contractors'/Division' tanks), the contractor or the manufacturer shall submit to the Engineer a Certified Laboratory Report on the performance of the material for Storage Stability Test in accordance with AASHTO T59.
8. The diluted materials shall be tested for asphalt residue % in accordance with AASHTO T59, Section 55, Residue by Evaporation, and shall have a minimum asphalt residue % of 15.
1020-4 CUT-BACK ASPHALT, RAPID CURING.
Cut-back asphalt, rapid curing, shall meet the requirements of AASHTO M81.
1020-5 CUT-BACK ASPHALT, MEDIUM CURING.
Cut-back asphalt, medium curing, shall meet the requirements of AASHTO M82.
1020-6 EMULSIFIED ASPHALT, ANIONIC.
Emulsified asphalt, except for Grade RS1H, shall meet the requirements of AASHTO M140.
Emulsified asphalt, Grade RS1H, shall meet the requirements of AASHTO M140 for Grade RS1 except as follows:
1. The penetration of residue shall be a minimum of 50 and a maximum of 100.
2. The solubility of residue in trichloroethylene shall be minimum of 97 percent.
The testing of the asphalt shall be performed in accordance with AASHTO T59 except as follows:
1. The residue by evaporation will be performed using a hot plate in lieu of an oven.
2. The determination of coating test, solubility of residue, and ash will be made when deemed necessary by the Engineer.
3. The wet aggregate method will be used to determine the coating ability and water resistance using either crushed or uncrushed aggregate from a source selected by the Department.
1020-7 EMULSIFIED ASPHALT, CATIONIC.
Cationic emulsified asphalt, except for Grade CRS-1H, shall meet the requirements of AASHTO M208.
Cationic emulsified asphalt, Grade CRS1H, shall meet the requirements of AASHTO M208 for Grade CRS1 except as follows:
1. The residue after distillation shall be a minimum of 55 percent.
2. The penetration of residue shall be a minimum of 50 and a maximum of 100.
3. The solubility of residue in trichloroethylene shall be a minimum of 97 percent.
4. Viscosity, Saybolt Furol at 77F., shall be a minimum of 20 and a maximum of 100.
The testing of the asphalt shall be performed in accordance with AASHTO T59 except as follows:
1. The residue by evaporation will be performed using a hot plate in lieu of an oven.
2. The determination of coating test, oil distillate, PH, solubility of residue, ash, and particle charge will be made when deemed necessary by the Engineer.
3. The wet aggregate method will be used to determine the coating ability and water resistance using either crushed or uncrushed aggregate from a source selected by the Department.
Non-strip additive shall be an additive designed for incorporation in asphalt cement in order to prevent separation of the asphalt cement from the coated aggregate in a bituminous plant mix. Non-strip additive shall have been approved by the Engineer prior to its use.
1020-9 WATERPROOFING AND DAMPPROOFING MATERIALS.
(A) Asphalt Primer:
Asphalt primer shall meet the requirements of AASHTO M116. (See Standard Special Provisions)
(B) Asphalt Cement:
Asphalt cement shall meet the requirements of Article 10202 for Grade AC20. (See Standard Special Provisions)
(C) Cut-Back Asphalt:
Cut-back asphalt shall meet the requirements of AASHTO M81 for Grade RC250.
(D) Tar:
Tar shall meet the requirements of AASHTO D490. (See Standard Special Provisions)
(E) Asphalt Plank:
Plain asphalt plank shall meet the requirements of ASTM D517 for plain asphalt plank.
(F) Fabric:
Woven cotton fabric for waterproofing shall meet the requirements
of ASTM D173.