Division 400 — Section 410
400-61 Section 410 — Preventative Maintenance Thin Lift Seal Course
410.1 Description 1 Construct the preventative maintenance thin lift seal course. 410.2 Materials 1 Ensure that all materials conform to SC -M-402. 410.3 Construction 1 Perform all work according to Section 401, except where noted in this specification. Place and compact the preventative maintenance thin lift seal course to provide the desired in- place compaction and to produce a smooth riding surface. 410.3.1 Roadway 410.3.1.1 Tack Coat 1 Apply approved emulsified asphalt to the surface on which the asphalt thin lift seal course will be placed. Use tack coat materials and application that conforms to Subsection 401. 3.13. The tack rate may be adjusted to a rate outside of the specified range if the RCE deems necessary. 410.3.1.2 Temperature Requirements 1 Conform to all temperature restrictions in Section 401. 410.3.1.3 Spreading, Finishing, and Compaction 1 Spread the preventative maintenance surface treatment to ensure that a minimum loose mat thickness of ¾ in. is achieved directly behind the asphalt paver. The RCE will measure the loose mat thickness every 200 ft paved in the middle of the paving width to check the minimum thickness requirement. The loose compaction depth will be measured using a loose compaction depth gauge provided by the Contractor. Verify that t he depth gauge is set correctly before beginning paving each day. The RCE will notify the Contractor if the pavement fails to meet minimum depth requirements. If a total of three or more 200- ft sections do not meet the depth requirements for a day’s production, no pay will be given for all sections not meeting depth requirements. All sections not meeting this requirement will be milled and replaced at no additional cost to the Department if the pavement shows signs of raveling or scaling related to low pavement thickness. Ensure that the mixture is rolled with an 8- ton to 12-ton