502.3(g) 502.3(h) less than or equal to 9 inches in single lifts . Construct pavements greater than 9 inches in multiple lifts of equal thickness, to achieve density requirements.
If more than 60 minutes has elapsed, the interface between the first and second lift is considered a cold joint. Prepare the cold joint as specified in Section 502.3(i)2. At the discretion of the Representative, this time limit may be increased or decreased depending on the use of retarding admixtures or the ambient weather conditions of temperature, wind, and humidity . Multiple pavers in tandem formation may be used to reduce the opportunity for cold joints to develop .
has elapsed between placements of adjacent lanes, the vertical joint is considered a cold joint. Prepare the cold joint as specified in Section 502.3(i)2. At the discretion of the Representative, this time may be increased or decreased depending on the use of retarding admixtures or the ambient weather conditions of temperature, wind, and humidity.
behind the paver . Perform field density readings with the Representative present . Plan operations and supply sufficient rollers to minimize cold joints . Determine the sequence and number of passes by vibratory and non -vibratory rolling to achieve the density acceptance requirements and to achieve a surface finish without uneven roller marks . Operation of rollers in the vibratory mode while stopped or reversing -direction is not allowed . Use a steel drum roller, operating in static mode ; a rubber -tired roller or a combi nation of rollers for final compaction, surface finishing , and removal of equipment marks.
until the adjacent lane is placed . Within the allowable time, roll together both edges of the two adjacent lanes. If the lane edge will not have an adjacent lane or if the lane edge is the outside pavement edge, the lane may be placed wider to achieve compaction for the required width with the additional uncompacted RCC pavement material cutoff after density acceptance . As an alternative to saw cutting, use an edge shoe on the paver. The shoe should have an angle of 15 to 30 degrees and should compact the edge as required . When a cold joint is planned, roll the complete lane and follow cold joint procedures as specified in Section 502.3(i)2. Provide additional rolling for longitudinal joints with a vibratory rolle