2014
DOI: 10.3141/2444-02
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Vacuum Sealing–Based Volumetric Density Measurement Approach for Cold In-Place Recycling

Abstract: Recent economic limitations have fostered increased use of pavement rehabilitation methods such as cold in-place recycling (CIR). CIR could be more appealing to departments of transportation provided variability were lower and performance were more predictable. Because of the nature of the materials and construction processes, CIR is likely to be more variable than plant-mixed asphalt, and it is believed that the performance variability of CIR can be reduced through enhanced density control. The many density c… Show more

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Cited by 7 publications
(5 citation statements)
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“…Other curing conditions (e.g., cold curing at 50°F (10°C) for three days) can also be utilized to better represent the environmental conditions during which the CIR rehabilitation is to be performed in the field. In addition, designers should use three loose CIR samples for determining the maximum theoretical (Rice) specific gravity using CoreLok as the study of Cox and Howard ( 19 ). Once cured, the air voids (i.e., measure Bulk and Rice specific gravities) should be determined for all compacted samples using the CoreLok method.…”
Section: Proposed Performance-related MIX Design Methodsmentioning
confidence: 99%
“…Other curing conditions (e.g., cold curing at 50°F (10°C) for three days) can also be utilized to better represent the environmental conditions during which the CIR rehabilitation is to be performed in the field. In addition, designers should use three loose CIR samples for determining the maximum theoretical (Rice) specific gravity using CoreLok as the study of Cox and Howard ( 19 ). Once cured, the air voids (i.e., measure Bulk and Rice specific gravities) should be determined for all compacted samples using the CoreLok method.…”
Section: Proposed Performance-related MIX Design Methodsmentioning
confidence: 99%
“…A blend of 85% toluene and 15% ethanol was used. c Maximum theoretical specific gravity determined via Corelok ® vacuum sealing. See Cox and Howard ( 39 ) for details. …”
Section: Experimental Programmentioning
confidence: 99%
“…After cooling, specimen G mb was measured via AASHTO T331 (CoreLok ® method) then T166 (saturated surface dry method). G mm for each blend was determined according to Cox and Howard ( 39 ).…”
Section: Experimental Programmentioning
confidence: 99%
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“…Six cores were dry cut at 1, 3, 7, and 14 days (24 total). Properties measured on cores were density [according to the modified AASHTO T 331 protocol outlined in Cox and Howard (20)], unconfined compressive strength (UCS), indirect tensile (IDT) strength (S t ), and MC. Figure 2d illustrates the coring layout relative to GS3 locations.…”
Section: Us-45alt Field Construction and Instrumentationmentioning
confidence: 99%