Using Recycled Asphalt Shingles with Warm Mix Asphalt Technologies (2018) / Chapter Skim
Currently Skimming:
Pages 124-137
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 124... ...
124 Mix Design Verifications The mixtures from the new projects (Wisconsin, Alabama, Tennessee, North Carolina, and Indiana) were verified accor ding to AASHTO PP 78-17.
|
From page 125... ...
125 Sieve Size Percent Passing JMF NCAT QC Verification 1 in.
|
From page 126... ...
126 Material Cold-Feed Percentages JMF Adjusted Air Void Low Air Void NCAT QC Verification NCAT QC Verification ½-in. crushed gravel 39.0 36.0 36.0 36.0 36.0 Shot gravel 11.0 8.0 8.0 8.0 8.0 78 limestone 7.0 10.0 10.0 10.0 10.0 Limestone screens 7.0 7.0 6.0 7.0 6.0 Sand 15.0 19.0 19.0 19.0 19.0 Baghouse fines 1.0 0.0 1.0 0.0 1.0 RAP 15.0 15.0 15.0 15.0 15.0 RAS 5.0 5.0 5.0 5.0 5.0 Table 5-5b.
|
From page 127... ...
127 and low air void)
|
From page 128... ...
128 Property JMF Adj. Va Low Va NCAT QC Verification NCAT QC Verification AASHTO M 323 Criteria AASHTO PP 78-17 Criteria Va (%)
|
From page 129... ...
129 Material Test Method Gsb Gsa Absorption (%) Natural sand AASHTO T 84 2.663 2.738 1.02 D-Rock AASHTO T 85 2.736 2.783 0.61 Coarse slag AASHTO T 84 3.189 3.645 3.92 AASHTO T 85 3.257 3.476 1.94 Weighted average 3.226 2.551 2.51 Limestone No.
|
From page 130... ...
130 however, its VFA was above the allowable range of AASHTO M 323. Although NCAT's Gsb results were similar to those of the contractor, NCAT's Gse results were much higher, indicating a much higher asphalt absorption for the NCAT results.
|
From page 131... ...
131 Material Test Method Gsb Gsa Absorption (%)
|
From page 132... ...
132 Property MW–RAS PC–RAS JMF NCAT QC Verification JMF NCAT QC Verification AASHTO M 323 Criteria AASHTO PP 78-17 Criteria Va (%)
|
From page 133... ...
133 Material Test Method Gsb Gsa Absorption (%) Limestone No.
|
From page 134... ...
134 Laboratory Verification NC MW–RASAL Adj.
|
From page 135... ...
135 Location RAS Percentage and Type Binder Ratios Tc RAP RAS 20-h PAV 40-h PAV Wisconsin 3% PC 0.15 0.13 -3.5 -6.5 Alabama, Low Va 5% PC 0.14 0.19 -7.7 -10.6 Alabama, Adj. Va 5% PC 0.15 0.21 -10.8 -13.8 Tennessee 3% PC 0.11 0.09 -11.7 -10.4 North Carolina MW–RAS 5% MW 0.21 0.16 -2.7 -10.5 North Carolina PC–RAS 5% PC 0.20 0.14 -3.2 -7.3 Indiana 2% MW 0.13 0.06 -5.6 -9.5 Table 5-22.
|
From page 136... ...
136 P b a D iff er en ce (% ) JMF–Laboratory Verification QC–Laboratory Verification NC PC–RASNC MW–RASAL Adj.
|
From page 137... ...
137 mixtures. Once again, this could be an indication that mixtures were potentially placed too dry, which may increase cracking susceptibility.
|
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.