The North Dakota Department of Transportation (NDDOT) will operate four VSS Minimac Microsurfacing machines for pavement preservation to preserve our existing roadway network. The State reserves the right to award contracts which optimize equipment usage and minimize mix designs and recalibration. Type II Micro-Surfacing aggregate samples must be submitted to the NDDOT by your company for initial material testing and mix design analysis. The NDDOT and suppliers will work together to determine which composition of materials will work in the Minimac without complications. Awarded aggregate suppliers will provide sufficient sample material, initially a full five gallon container, to allow design development. Each aggregate source will require sampling for design. Working with the NDDOT and using the site specific material, the emulsion supplier will develop a mix design. The design and testing must be completed in a timely manner to allow for the availability of materials for the upcoming maintenance season. It is estimated that a minimum of two weeks will be required to develop each design.
