00621476

Component

http://onlinepubs.trb.org...trr/1991/1317/1317-009.pdf

https://scholar.google.co...llen&publication_year=1991

Oregon has used cold in-place recycling (CIR) techniques since 1984 as one alternative to conventional asphalt concrete pavement rehabilitation practices. The initial success of the early CIR projects (1984 and 1985) prompted a joint research effort in 1986 between the Oregon State Highway Division and Oregon State University. This effort, continued in 1988, has focused on developing improved mix design procedures and construction guidelines for cold in-place recycling. One of the goals of the study was to develop a sample preparation procedure for cold recycled mixtures; the samples were to be used for mix design purposes. To validate the procedure, selected mix properties of field cores were compared with those of laboratory-prepared samples. The field and laboratory studies, their results, and a comparison of their results are described. Also, the CIR mix properties are compared with those of conventional hot mixes. Significant findings include (a) laboratory samples can be prepared at void contents similar to those found in the field; (b) laboratory sample mix property test results generally compare well with those of the field cores; and (c) limited comparisons showed that cold in-place recycled mixtures generally have greater moduli and fatigue lives than conventional hot mixes at similar void contents.

This paper appears in Transportation Research Record No. 1317, Asphalt Mixtures: Design, Testing, and Evaluation 1991. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01407169

p. 77-89

1991

Transportation Research Record

030905155X

Figures (9) ; References (5) ; Tables (8)

Air voids; Alternatives analysis; Asphalt concrete; Cold in-place recycling; Cold weather; Fatigue (Mechanics); Field tests; Laboratory tests; Mix design; Modulus of resilience; Recycling; Samples

Fatigue life; Preparation

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Apr 30 1992 12:00AM

• ANALYSIS OF CRACK PROPAGATION IN ASPHALT CONCRETE USING COHESIVE CRACK MODEL
• DEVELOPMENT OF A PRACTICAL METHOD FOR DESIGN OF HOT-MIX ASPHALT
• EFFECT OF AGGREGATE GRADATION VARIATION ON ASPHALT CONCRETE MIX PROPERTIES
• EFFECT OF LOADING MAGNITUDE ON MEASURED RESILIENT MODULUS OF ASPHALTIC CONCRETE MIXES
• EFFECT OF TEMPERATURE AND MIXTURE VARIABLES ON FATIGUE LIFE PREDICTED BY DIAMETRAL FATIGUE TESTING
• EFFECT OF THE USE OF MODIFIERS ON PERFORMANCE OF ASPHALTIC PAVEMENTS
• EFFECTS OF SAMPLE PREPARATION AND AIR-VOID MEASUREMENT ON ASPHALT CONCRETE PROPERTIES
• EVALUATION OF MARSHALL AND HVEEM MIX DESIGN PROCEDURES FOR LOCAL USE
• EVALUATION OF RESIN-MODIFIED PAVING PROCESS
• INVESTIGATION OF RUTTING POTENTIAL USING STATIC CREEP TESTING ON POLYMER-MODIFIED ASPHALT CONCRETE MIXTURES
• MATERIAL CHARACTERIZATION AND INHERENT VARIATION ANALYSIS OF ASPHALTIC FIELD CORES
• METHODS TO DETERMINE POLYMER CONTENT OF MODIFIED ASPHALT
• NEW TECHNIQUE TO MEASURE MOISTURE IN HOT-MIX ASPHALT CONCRETE NONDESTRUCTIVELY
• PERFORMANCE ASSESSMENT OF BINDER-RICH POLYETHYLENE-MODIFIED ASPHALT CONCRETE MIXTURES (NOVOPHALT)