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Appendix E 2.2 Pavement Temperature Assessment

In sprayed work, it is critical to correctly assess the pavement surface temperature applicable for determining the concentration of cutter oil, and this is even more important for polymer modified binder seals. Measurement of pavement temperature should give due consideration to the conditions that the pavement will be subjected to over the day and following night. For example, a pavement that is in sunshine during the middle of the day may be in the shade of trees or shadowed within a roadway cutting during the remainder of the day. In this case the quantity of cutter oil added should be based on the likely temperature of the shaded areas of pavement.

The expected prevailing weather conditions for the next few weeks should also be considered. If in doubt, the cutter oil requirement should be based on the worst of the expected conditions.