Specifications include, but are not limited to: The emulsified asphalt shall be quick-set polymer modified cationic type CQS-1HP emulsion and conform to the requirements specified in AASHTO M208 and ASTM 2397 as well as Section 818 of the 2022 NDDOT Standard Specifications with Supplemental Specifications published on January 1, 2022. It shall pass all applicable storage and settlement tests and have a minimum residue after distillation of 62%. Special quick-setting emulsifier agents shall be milled into the asphalt emulsion. The cement mixing test will be waived for this emulsion. Distillation of residue will be at a temperature of 350 OF for 20 minutes. Softening point of the residue shall be 135 OF minimum, absolute viscosity shall be 8,000 poise minimum using the average of two bulbs with the methods of ASTM 2171 and #13 Canon-Manning viscosity tubes. The emulsified asphalt shall be so formulated that when the paving mixture is applied at a thickness of one inch with the relative humidity at 59% or less and the ambient air temperature at 75 OF or higher, the material shall cure sufficiently to carry rolling traffic in one hour with no damage to the surface, as verified by NDDOT. A qualified laboratory shall develop a mix design and present certified test results for approval by NDDOT. Compatibility of the aggregate and emulsion shall be certified by the emulsion manufacturer in accordance with ASTM D3910, applicable tests. NDDOT approved aggregate suppliers will provide samples of Type II Micro-Surfacing aggregates. All component material used in the mix design shall be representative of the material proposed by NDDOT for use. The NDDOT will approve the design mix. The component materials shall be within the following limits. Residual Asphalt - 5% to 9% by dry weight of aggregate Mineral Additive - 0.5% to 3% by dry weight of aggregate Latex Modifier - As required to provide specified properties Field Control Additive - As required to provide the specified properties Water - As required to produce consistency
