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Title:

PERFORMANCE OF RIGID PAVEMENTS CONTAINING RECYCLED CONCRETE AGGREGATES

Accession Number:

00740643

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309059739

Abstract:

State highway agencies in Connecticut, Kansas, Minnesota, Wisconsin, and Wyoming have successfully designed and constructed rigid pavements containing recycled concrete aggregate (RCA). Success has been attributed in part to the minimization of old mortar content in the RCA during recycling processes, thereby controlling the total mortar content of the new portland cement concrete (PCC) mixture, or to the achievement of higher-than-expected compressive strengths through adjustments in mix proportions, or both. There was no clear correlation between mortar content and cracking distresses in field investigations, although one project did exhibit significantly more slab cracking in the recycled pavement than in the corresponding control pavement. The increased cracking may have been due to the large differences in total mortar content between the recycled and control sections. In general, the recycled PCC pavements considered in this study have performed comparably with their conventional PCC pavement counterparts, including the recycled pavements that incorporated RCA derived from concrete affected by D-cracking and alkali-silica reactivity (ASR). There is, however, evidence of small amounts of localized recurrent ASR in the recycled Wyoming pavement. Whether this reactivity will eventually develop into widespread distress remains to be seen.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1574, Advances in Concrete and Concrete Pavement Construction.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Cuttell, G D
Snyder, M B
Vandenbossche, J M
Wade, M J

Pagination:

p. 89-98

Publication Date:

1997

Serial:

Transportation Research Record

Issue Number: 1574
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309059739

Features:

References (9) ; Tables (6)

Old TRIS Terms:

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I32: Concrete

Files:

TRIS, TRB, ATRI

Created Date:

Sep 8 1997 12:00AM

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