What should compaction requirements be?
What is the best way to check density?
What is the process or how is density target value established or determined?
How many rollers are required?
What is the recommended air void content for compaction of asphalt pavements?
How is air void content controlled?
What is the best way to check density?
Nuclear gauges are generally used for density testing because of the ease and speed with which the testing can be done. This allows for many more tests – more than the five minimum for a better statistical result. Caution: The nuclear density gauge needs to be correlated to core densities that are taken from the […]
What is the recommended air void content for compaction of asphalt pavements?
What should compaction requirements be?
Testing should be done on a random sampling basis with a minimum of five tests per lot (agency requirements define a “lot” as “A day’s or full day’s production”). The average of the five density determinations should be equal to or greater than: 96% of lab density with no test less than 94% 92% of […]
How many rollers are required?
Contrary to popular belief, the number of rollers required for proper compaction is based on the square yardage placed rather than the production or delivery tonnage. Roller speed should be limited to 3 mph. With this speed and the width of the roller, the coverage rate can be calculated. The width of paver pass and […]