Slurry surfacing application equipment requires calibration because it does not mix in batches. Rather, current equipment continuously feeds the individual components (aggregate, emulsified asphalt, mineral...
In slurry surfacing systems, the mix design component proportions are based on the weight of dry aggregate. Therefore, corrections for moisture in the aggregate are...
Example: Minimum sample size would be 5 lbs. of mineral filler if the scale accuracy is ± 0.1 lb. The fines feeder should deliver consistent...
Example: If the moisture is 5%, the moisture factor is 1.05. Calculation: 0.05 + 1.00 = 1.05 Designer’s Note: A proven moisture content test method...
Determination of Gate Setting using the JMF Once the emulsified asphalt, mineral filler and aggregate feeds have been calibrated, the application equipment must be set...
Determination of Mineral Filler Speed Control Setting at JMF Inspector’s Note: Over the course of the job, occasionally verify that the mineral filler speed control...
In full alignment with industry best practices, application and evaluation of a 150-300 m (500-1000 ft) test strip prior to the start of a slurry...
The application equipment is calibrated to produce a mixture that is consistent with the JMF in the approved mix design. Mix design components are proportioned...
For Positive Displacement Pumps: Examples of minimum sample size include: 50 lbs. of emulsified asphalt if the scale accuracy is ± 1 lb., 100 lbs....