2118 Minnesota 2020 Standard Specifications 141 Scarify, mix, dry or add moisture (if necessary), and compact the top 6 inches of the Subgrade. Correct areas re presented by failing tests. Comply with the drainage requirements of 2106.3A , “General” and any other additional drainage or dewatering requirements of the Contract. Remediation below the planned 6 -inch Subgrade Preparation Layer to correct unstable conditions may be subject to 1402 , “Contract Revisions .” As determined by the Engineer, the Contractor’s requirements to meet moisture and compaction Specifications for Subgrade Preparation are waived, if during subgrade compaction excess moisture is drawn up into the subgrade preparation Layer from below. Failu re of the Contractor to comply with drainage and/or dewatering requirements which impact subgrade moisture will not relieve them of the moisture or compaction requirements. B Contractor QC Testing Test according to the Schedule of Materials Control . C Compacti on Compliance Meet the requirements of Table 2106.3 -1 and Table 2106.3 -4. Achieve and maintain the compaction requirements, until placement of the next Lift. D Department Quality Assurance (QA) Testing Test according to the Schedule of Materials Control . Test for compaction in areas with the greatest rutting or deflection . Rete st failing areas after correction . E Tolerances Finish the surface of each Layer within 0.05 feet above to 0.10 feet below the cross -section shown on the Plans before placing the next Layer .
2112.4METHOD OF MEASUREMENT
Engineer will measure Subgrade preparation b y length, along the centerline of the embankment . Engineer will separately measure Work on each embankment on Divided Highways .
2112.5BASIS OF PAYMENT
The Contract Road station price for Subgrade preparation includes costs of testing and Subgrade preparation on embankment constructed as required by this Contract . The Department will pay for Subgrade preparation on the basis of the following schedule: Item No. Item Unit
2112.519 Subgrade Preparation Road station
2118.1DESCRIPTION
This Work consists of placing Aggregate surfacing on Roadways and Shoulders .
142 Minnesota 2020 Standard Specifications 2118.2 MATERIALS Provide the class of Aggregate as required by the Contract with the following exceptions:
substituted for class 2
95-100 percent passing the 1 inch Sieve may be used for the 1 -2 foot fillet/rollover outside of a paved Shoulder
2118.3CONSTRUCTION REQUIREMENTS
Forms and the Grading and Base Manual are available on the Grading and Base Website . Unless otherwise designated, test procedures are in the Grading and Base Manual . Repair Structures damaged by Contractor operations or negligence. Construct Aggregate surfacing in acco rdance with 2211 , “Aggregate Base.” Meet the Quality Compaction method specified in 2106.3G.2 , “Quality Compaction.” Maintain the moisture content at or above 5 percent by dry weight during compaction. A Contractor Quality Control (QC) Testing Test according to the Schedule of Materials Control . Certify Materials on Form G&B -104. Material placed without certifications is unauthorized Work in accordance with 1512 , “Unacceptable and Unauthorized Work. ” B Department Quality Assurance (QA) Testing Test according to the Schedule of Materials Control .
2118.4METHOD OF MEASUREMENT
The Engineer will measure the Aggregate surfacing in accordance with 1901 , “Measurement of Quantities.” The Engineer will not make deductions for the mass or volume of water and admixtures. Mass and volume conversion tables are in the Grading and Base Manual .
2118.5BASIS OF PAYMENT
The Contract Unit Price for the accepted quantities of Aggregate surfacing includes the costs of production, testing, placement, watering or drying, and compaction. Aggregate surfacing placed before the Engineer accepts the Contractor’s certification is unauthorized Work in accordance with 1512 , “Unacceptable and Unauthorized Work.” The Department will pay for Aggregate surfacing on the basis of the following schedule: Item No. Item Unit
2118.507 Aggregate Surfacing (LV), Class ___ cubic yard
7 Aggregate Surfacing (CV), Class ___ cubic yard
9 Aggregate Surfacing, Class ____ ton
2123 Minnesota 2020 Standard Specifications 143 2123 EQUIPMENT RENTAL
2123.1DESCRIPTION
This Work consists of providing laborers and operating Equipment for Work required by the Contract , directed by the Engineer, and paid by the Departm