Author: Nataraj V. BanihattiPublisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 164
Book Description
Design and Durability of Asphalt Seal Coats
Author: Nataraj V. BanihattiPublisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 164
Book Description
Design, Construction, and Performance of Bituminous Seal Coats
Author: Pennsylvania Transportation InstitutePublisher:
ISBN:
Category : Pavements
Languages : en
Pages : 284
Book Description
Texas Seal Coat Design Method
Author: Darlene C. GoehlPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 61
Book Description
Seal coat is a layer of asphalt binder with a layer of aggregate applied over a pavement. The purpose of a seal coat is to seal the pavement from air and water intrusion while providing the safety benefits of maintaining sufficient friction over the seal coat's design life. With an investment of over $300,000,000 annually, it is imperative to construct a high-quality project. To achieve quality construction, it is important to establish and adjust the application rates for the binder and aggregate based on the materials being used, traffic and existing roadway conditions. This project produced guidelines for improvements to rate design procedures that will help engineers and inspectors make better decisions resulting in successful projects.
Evaluation of Sealcoat in Pavements
Author: Gajanan M. SabnisPublisher:
ISBN:
Category : Pavements
Languages : en
Pages : 72
Book Description
Durable Asphalt Emulsion Seal Coats
Author: W. G. WhitcombPublisher:
ISBN:
Category : Asphalt emulsion mixtures
Languages : en
Pages :
Book Description
"This report documents an investigation of seal coats, primarily chip seals. The study included a literature review, discussions with pavement technologists, interviews of state highway departments, and laboratory and field evaluations of selected projects"--Technical report documentation p.
Seal Coat Handbook
Author: Jeff SeilerPublisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 56
Book Description
Field Manual on Design and Construction of Seal Coats
Author: Jon A. EppsPublisher:
ISBN:
Category : Coating processes
Languages : en
Pages : 92
Book Description
The UTexas Seal Coat Design Method Using 3D Laser Technology
Author: Yorguo El HachemPublisher:
ISBN:
Category :
Languages : en
Pages : 636
Book Description
The size of the highway network has grown beyond the manageable capabilities of transportation agencies and stakeholders who are concerned with maintaining their assets using limited funding abilities. For that reason, pavement preservation programs have become very popular because they offer cost-effective spending schemes that maximize the service life of roads. Seal coats are one of the most popular pavement preventative treatments used around the world due to their high durability and low cost compared to other surface treatments. Their performance depends on the adequate computation of the aggregate and binder application rates. Misestimating these rates leads to raveling, bleeding, or other distresses. Accordingly, numerous design methods have been developed and are being implemented worldwide. This research assesses the different design philosophies and considers the assumptions adopted by each. It is challenging to design a seal coat when several design methods recommend different and inconsistent application rates. For the first time, the three-dimensional laser is incorporated in the design of seal coats in order to provide a fast, objective, and reliable approach. A predictive model is developed to determine the adequate aggregate application rate based on the size of the aggregates, i.e. the average least dimension, and their density. This study also assesses the contemporary texture characterization techniques and analyzes the variance of the sand patch test. The findings indicate that the sand patch test is not a reliable estimator of the volume of voids in the surface texture, which negatively affects the calculation of the binder application rate. The study recommends an algorithm that accurately measures the volume of voids in the existing surface texture using 3D surface scans. The outcome enhances the estimation of the binder application rate, and the findings can be applied to the existing design methods to improve the performance of the seal coat. Finally, highway agencies could incorporate the 3D laser within the binder sprayer to measure the surface texture during construction and automatically adjust the rate
The Determination of an Accelerated Durability Test to Evaluate Asphalt Emulsion Seal Coats
Author: John Everett BakerPublisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 308
Book Description
An Introduction to Asphalt Concrete Seal Coats
Author: J. Paul Guyer, P.E., R.A.Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 45
Book Description
Introductory technical guidance for civil engineers and construction managers interested in seal coats for asphalt concrete pavements. Here is what is discussed: 1. INTRODUCTION 2. PRIME COAT 3. TACK COAT 4. FOG SEALS 5. REJUVENATION 6. SEAL COATS 7. SLURRY SEAL 8. FUEL-RESISTANT SEALER 9. MICRO-SURFACING.