Liquid Asphalt Sealant ................................................ 902.01
CONSTRUCTION REQUIREMENTS 50
606.03General Requirements In the presence of D-1 pavement joints or castings which conflict with the location
of the corrugations, the corrugations shall be gapped a maximum of 5 ft and not within 6 in. of the joint or casting. Corrugations installed on HMA shall be sealed using liquid asphalt sealant in accordance with 401.15. Corrugations shall not be installed on PCCP until the PCCP has cured for a 60 minimum of 14 days. The milling operations for installing corrugations on PCCP shall not exceed 12 mph. (a) Installation Tolerances Lateral deviation of milled corrugations shall not exceed 1 in. in 100 ft. The alignment of all pavement markings placed w ithin rumble stripes shall be ±1/2 in. of its specified location. (b) Maintenance of Traffic The rumble stripe traffic control procedures shall be submitted to the Engineer 70 and shall be in accordance with 808.08. Ve hicles used in performing the milling, sweeping, vacuuming, or sealing operations shall have a rear escort vehicle that follows at a distance of 100 to 500 ft. 606.04 Method of Measurement HMA and PCC pavement corrugations will be measured by the linear foot, measured parallel to the center line of the roadway. Gaps longer than 20 ft will not be included in the measurement for milled corrugations. 606.05 Basis of Payment 80 HMA and PCC pavement corrugations will be paid for at the contract unit price per linear foot, for the type specified.
Payment will be made under: Pay Item Pay Unit Symbol Milled HMA Corrugations, _______ ........................................ LFT type Milled PCCP Corrugations, Conventional ................................ LFT 90 606.03 517 The cost of temporarily covering existing prismatic reflectors in rumble strip retrofit sections shall be included in the cost of the pay items.
Milling, sweeping, vacuum cleaning, operation protection and maintenance of traffic associated with these pay items, and all necessary incidentals shall be included in the cost of the pay items. Where corrugations are placed in an ex isting HMA surface, liqu id asphalt sealant shall be included in the cost of the pay items. 100