Evaluation of Selected Softening Agents Used in Flexible Pavement Recycling

Anderson, Douglas I.; Peterson, Dale E.; Wiley, Max

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Evaluation of Selected Softening Agents Used in Flexible Pavement Recycling

1978-04-01
By Anderson, Douglas I. ; Peterson, Dale E. ; Wiley, Max

File Language:

English

Details

Creators:

Anderson, Douglas I. ; Peterson, Dale E. ; Wiley, Max
Corporate Creators:

Utah Department of Transportation
Corporate Contributors:

United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA-TS-79-204
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final report
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration
Description:

Twenty-three softening agents were tested for physical and chemical properties. The agents were very low in viscosity, which seemed to correspond to a low asphaltenes two pavements being considered for recycling. Approximately 1 percent of the Dutrex and Dust Oil additives were needed to reduce the extracted asphalts to the AC5 level. About 1 1/2 percent Reclamite was required to reach the AC5 level, and an excess of 2 percent Flux Oil was needed. The AC5 consistency was not achieved for pavement No. 1 using the Flux Oil, due to the fact that so much agent was needed that the percentage of air voids was reduced to an intolerable level. Similar relationships for the viscosity at 275 deg F (135 deg C), penetration and ductility were observed. The mix properties stability, air voids, creep compliance and resilient modulus were measured for binder consistencies of AC20, AC10 and AC5 using the four agents. Both the asphalt consistency and the total binder content affected these values. Samples containing the four agents were oven aged to evaluate changes in the mix and binder properties. (TRID)
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/68548/dot_68548_DS1.pdf
File Type:

[PDF - 713.81 KB]
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:91a58fd38b36592fd658d97f8d950f7b5fd3e3ca2977a52ae9d09e4fae595974630dc6468034ccee01ae33717069fd61942e97980f2340446e938be9fa9959c2

File Language:

English

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