Research into moisture in pavements in New Zealand started in 1979 and led to the instrumentation and monitoring of moisture in two sample pavements. The project recorded in this report was commissioned in 1995 to indicated the future directions that New Zealand research should take to evaluate moisture conditions in pavements.
Fundamental studies in New Zealand should not be commissioned until the results of long-term projects underway in the US become available.
These projects are researching the long-term effects of seasonal changes of moisture on the strength and performance of pavements.
Instead, research during pavement operations is recommended and should: