Laserfiche WebLink
Local Assistance Procedures Manual <br />Exhibit 16-S <br />Caltrans Test Method- ASTM Test Method Conversion Chart <br />Notes <br />1. Use the CALTRANS Method. <br />2. Use the methods of calculation within the applicable test method first. Refer to CTM 105 as <br />necessary. <br />3. Use the Caltrans Construction Manual procedures as necessary when ASTM D75 or <br />D979 do not adequately cover the item to be sampled. <br />4. Use the direct transmission method only, the air gap method shall not be used. All <br />nuclear gages must have local Caltrans District calibration within the last year. The data <br />sheets provided by the local Caltrans District shall be used when determining the in - <br />place density. <br />5. Sample from the job site, across the mat, immediately behind the paving machine (Caltrans <br />Construction Manual). <br />6. Sample per ASTM D 979 paragraph 4.2.3., sample from the job site, across the mat, <br />immediately behind the paving machine. <br />7. All nuclear gages used for this test must be calibrated on the six (6) DNTM&R AC Standard <br />Blocks. The Data sheets provided by the local Caltrans District shall be used when <br />determining the in -place density. <br />8. Recommended Percent (%) AC method for Rubberized Bituminous Paving mixtures. <br />9. The hand method of shaking is not authorized and shall not be used. An electro- <br />mechanical or hand- operated mechanical. Sand Equivalent shaker must be utilized for <br />this test. <br />10. This Method covers hot solvent, centrifuge, and vacuum extraction. <br />IL Compaction Apparatus shall be calibrated in accordance with ASTM D 2168, Method B <br />(ASTM Book 4.08). <br />12. Test Maximum Density (TMD) shall be performed by Caltrans Test Method 375, Section <br />F. Test Max. Density. <br />13. Splitters must be of the fixed riffle type (no adjustable splitters). <br />Page 4 of 4 <br />January 2018 <br />