Detecting Segregation in Bituminous Pavements and Relating Its Effect to Performance
Author | : Jiemin Zhang |
Publisher | : |
Total Pages | : 582 |
Release | : 2000 |
Genre | : Pavements, Asphalt concrete |
ISBN | : |
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Author | : Jiemin Zhang |
Publisher | : |
Total Pages | : 582 |
Release | : 2000 |
Genre | : Pavements, Asphalt concrete |
ISBN | : |
Author | : C. Petit |
Publisher | : RILEM Publications |
Total Pages | : 748 |
Release | : 2004 |
Genre | : Pavements |
ISBN | : 9782912143471 |
Author | : Mary Stroup-Gardiner |
Publisher | : Transportation Research Board |
Total Pages | : 108 |
Release | : 2000 |
Genre | : Asphalt |
ISBN | : 9780309066525 |
Author | : Stephen Alan Cross |
Publisher | : |
Total Pages | : 56 |
Release | : 2000 |
Genre | : Aggregates (Building materials) |
ISBN | : |
Segregation of hot mix asphalt is a recurring problem in the paving industry. There is little documented research that quantifies the effects of segregation on mix properties and performance. The Asphalt Pavement Analyzer (APA) is a new class of pavement tester available to evaluate pavement performance. The APA can evaluate the rutting potential, moisture susceptibility and fatigue life of bituminous mixtures. Materials were available from a previous study (K-TRAN: KU-96-6) on segregation for use in evaluating the use of the APA with Kansas mixtures and materials. Two surface mixes, a BM-1B and BM-2, were fabricated to different levels of segregation as determined in the K-TRAN: KU-96-6 study. The mixtures were tested in the APA for rutting, moisture damage and fatigue life.
Author | : Stephen Alan Cross |
Publisher | : |
Total Pages | : 138 |
Release | : 1998 |
Genre | : Aggregates (Building materials). |
ISBN | : |
Segregation of hot mix asphalt is a recurring problem in the paving industry. There is little documented research that quantifies the effect of segregation on mix properties and pavement performance. Many state highway agencies are embracing performance based quality control/quality assurance (QC/QA) programs but only a few states have performed studies to quantify the effect of segregation on pavement performance. This study was conducted on four newly constructed pavements which had noticeable spots of segregation. Cores were obtained from both segregated and non-segregated sections of the four pavements. The unit weights of the pavements were determined using a thin-lift nuclear gauge. The change in gradation on the 4.75 mm sieve was compared with asphalt content, nuclear gauge unit weight, core unit weight, and macro texture to determine if an indicator test could quantify segregation. The cores were tested for moisture sensitivity, fatigue life, and indirect tensile strength to determine the effect of segregation on performance.
Author | : Stephen A. Cross |
Publisher | : |
Total Pages | : 92 |
Release | : 1992 |
Genre | : Pavements, Asphalt concrete |
ISBN | : |
Author | : Michael Robert Schorsch |
Publisher | : |
Total Pages | : 502 |
Release | : 2003 |
Genre | : Pavements |
ISBN | : |
Author | : Shad M. Sargand |
Publisher | : |
Total Pages | : 250 |
Release | : 2021 |
Genre | : Aggregates (Building materials) |
ISBN | : |
Segregation in asphalt pavement can manifest either as variation in the gradation of the aggregate in the asphalt mix (gradation segregation) or as variation in the temperature (thermal segregation), and both may occur together. Perhaps the primary cause of segregation is improper handling during mixing, transportation, and placement of the asphalt, which can occur at the silo or at the end of the load or elsewhere in the paving process. This report includes a literature review, national survey of state DOTs, and review of construction and materials specifications to assess the current state of the practice in mitigating segregation in asphalt pavement. Recommendations for possible implementation are given.