Aggregate Properties and the Performance of Superpave-Designed Hot-Mix Asphalt (2005) / Chapter Skim
Currently Skimming:
Pages 67-71
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 67... ...
between uncompacted voids content and rut depth divided by the square root of ESALs for the five sections. As shown in Figure 29, the relationship from the limited LTPP data does not match the relationship from the NCAT National Rutting Study (10)
|
From page 68... ...
Uncompacted voids versus rut depth normalized by traffic (10)
|
From page 69... ...
Wire-line rut depths taken at three random locations within each section were used as factors. As shown in Table 16, gradation is not a significant factor affecting rut depth.
|
From page 70... ...
Practically speaking, there was little difference between the rut depths, and all three gradations would perform well. 4.4.2 Relationship Between Aggregate Properties and Performance The following aggregate tests were performed on the aggregate sources used in the 2000 NCAT Test Track: • Bulk specific gravity, • F&E, • Uncompacted voids in coarse aggregate, • Uncompacted voids in fine aggregate (FAA)
|
From page 71... ...
Instead, individual regressions were performed with aggregate properties such as fine aggregate uncompacted voids, coarse aggregate uncompacted voids, and F&E at the 31 ratio, which might be expected to be correlated with rutting. None of the aggregate properties produced significant relationships.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.