424 SECTION 818
818.01 General Requirements
At the time of delivery, submit a certificate of compliance for each car and tank truck of material. In addition to the requirements of Section 106.01 C, “Certificate of Compliance” , provide the following information on each certificate of compliance:
1.Destination;
2.Gross, Tare, and Net Weights if Shipped by Truck;
3.Car Initials and Number or Tank Truck Number;
4.Type and Grade of Bitumen;
5.Date of Shipment; and
6.Specific Gravity.
818.02 Specific Requi Rements
A.Performance Graded (PG) Asphalt Cement. If the Performance Graded (PG) asphalt cement called for in the plans contains an S, H, V, or E designation, use PG asphalt cement that meets AASHTO M 332 Base asphalt may be modified with Polyphosphoric Acid (PPA). PPA may make up no more than 0.50 percent of the finished binder, by weight. The Engineer will accept PG asphalt according to the Combined State Binder Test Group procedures. Under the observation of the Engineer, obtain one s ample for every 250 tons of material for each supplier and grade of asphalt cement, or fraction thereof.
B.Rapid-Curing Cutback Asphalt. Use rapid-curing cutback asphalt that meets AASHTO M 81.
C.Medium -Curing Cutback Asphalt. Use medium -curing cutback asphalt that meets AASHTO M 82.
D.Slow -Curing Cutback Asphalt. Use slow -curing cutback asphalt that meets ASTM D 2026, except that the minimum flash point for the SC 800 shall be 240°F.
E.Cationic Emulsified Asphalt.
1.Cationic Emulsified Asphalt. Use cationic emulsified asphalt that meets the requirements of AASHTO M 208. 425 2. Modified Cationic Emulsified Asphalt. Use emulsified asphalt grades that meet the requirements of AASHTO M 316. Use asphalt with a maximum 3.0 percent oil distillate by volume of emulsified asphalt when tested according to AASHTO T 59, Residue and Oil Distillate by Distillation on Emulsified Asphalt. Use the manufacturer’s recommended distillation temperature when using CRS - 2P emulsion.
F.Anionic Emulsified Asphalt. Use emulsified asphalt that meets AASHTO M 140.
818.03 Bituminous Materials for Micro Surfacing
Use polymer emulsified asphalt. Mill or blend the polymer material into the asphalt or emulsifier solution before the emulsification process. Use emulsified asphalt and emulsified asphalt residue that meets the requirements specified in AASHTO M 208 for CQS -1h and Table 818-01. The cement mixing test is not required. Table 818 -01 Test Specification Requirement Settlement and Storage Stability of Emulsified Asphalts, 24 -h AASHTO T 59 1% Minimum Distillation of Emulsified Asphalt1 AASHTO T 59 62% Minimum Tests on Emulsified Asphalt Residue Softening Point of Bitumen (Ring and Ball Apparatus) AASHTO T 53 135°F Minimum 1 Hold the temperature for this test at 350°F for 20 minutes.
818.04 Bituminous Materials for Slurry Seal
Use emulsified asphalt that conforms to Grade CQS -1h as specified in AASHTO M 208. The cement mixing test is not required. Section 820 SECTION 820 SUPPLEMENTARY CEMENTITIOUS MATERIALS (SCM)
820.01 General
A.Certificate of Compliance. At the time of delivery, submit a certificate of compliance for each car and tank truck of material. In addition to the requirements of Section 106.01 C “Certificate of Compliance ”, provide the following information on each certificate of compliance:
A.Fly ash or Slag source by name of company and location of plant.
B.Gross, tare, and net weight if shipped by truck.
C.Car initials and number or tank truck number.
D.Date of shipment. In addition to the certificate of compliance, supply fly ash or slag test data in the form of a chemical and physical analysis report, prepared by an independent lab, before proceeding with the concrete mix design.
B.Storage Requirements. Provide weather -tight storage fac ilities for the SCM.
C.Material Limitations. When using SCM, choose a material type and class for inclusion in the mix design.
820.02 Fly Ash
A.General. The available alkalies, or equivalent, as Na 2O, max percentage is 2.0. If the available alkalies percentage is above 2.0 percent, determine the alkali -silica reactivity according to ASTM C 1567. If the expansion is less than 0.10 percent at 16 days, the material will be accepted. Submit results of the ASTM C 1567 test with the Certificate of Compliance for cement. Provide results from tests performed no more than one year before the date of certificate submission.
B.Class F Fly Ash. If using fly ash, use fly ash from an electrical generating plant using a single coal source not using limest one injection. Use fly ash that meets the requirements of AASHTO M 295, Class F, with the following modifications:
A.Revise “Silicon Dioxide (SiO
2.plus aluminum oxide (Al 2O3) plus iron oxide (Fe 2O3), min percent” to 66.0.
B.Revise “Loss on ignition, max percent” to 2.0.
C.The silicon dioxide (SiO 2) shall be at least 40.0 percent by dry weight of the total fly ash composition.
Source: North Dakota Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 459–460 of 550.