Blazejowski Stone Matrix Asphalt

Theory and Practice
1. Auflage 2010
ISBN: 978-1-4398-1972-2
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 343 Seiten

In the years since the development and subsequent success of Stone Matrix Asphalt (SMA), a plethora of articles have emerged, scattered throughout various publications. The time is right for a comprehensive resource that collects, examines, and organizes this information and makes it easily accessible. A compilation and distillation of the latest knowledge available, Stone Matrix Asphalt: Theory and Practice describes SMA, from its origin through implementation, and explores various methods and design approaches.
Detailing the requirements and materials for the mix, including asphalt binder, aggregates, and stabilizers, the book covers standard and alternative design methods and their execution, as well as best practices and production processes. It addresses issues such as permanent deformation and fatigue resistance, as well as special applications, such as bridge deck surfacing and airfields. The book uses practical examples to illustrate theory, presents practical tips useful in everyday work, and includes a review of problems that can occur during laydown, and their potential solutions.
Drawn from the author’s extensive experience during the introduction of SMA in the early 1990s and discussions with many process engineers, the book provides the practical information needed to customize methods for individual applications of SMA. Blazejowski puts together a picture, drawn from a broad range of literature. The result: a reference that is handy, practical, and easy to use.

Zielgruppe

Practicing transportation engineers; Senior undergraduate and graduate students in Transportation Engineering; Pavement Engineering.

Autoren/Hrsg.

Blazejowski, Krzysztof

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde
• Technische Wissenschaften Sonstige Technologien | Angewandte Technik Bergbau, Hüttenwesen

Inhaltsverzeichnis

The Concept of Stone Matrix Asphalt
A Brief History
From Germany to…or SMA All Over the World
Strengths and Weaknesses of SMA
Differences in SMAs around the World
Content of SMA

Skeleton of Coarse Aggregates
A Definition of an SMA Aggregate Skeleton
Formation of a Coarse Aggregate Skeleton
Gap Gradation
A Definition of the SMA Skeleton According to the Original German Method
A Definition of the SMA Skeleton with Other Methods
Comments on the Presented Methods
Among the Skeleton Grains
Summary

Mastic
Fine Aggregate
Filler
Binder
Summary

Stabilizers (Drainage Inhibitors)
The Draindown Effect
Stabilizers (Drainage Inhibitors)
Proper Selection of the Amount of a Stabilizer in a Mix
Testing Methods for Stabilizers
Binder Draindown Testing
Summary

Requirements for SMA Materials
Requirements for Aggregates
Requirements for Binders
Requirements for Stabilizers
Reclaimed Asphalt
Other Materials

Designing SMA Composition
Selecting SMA Gradation and Size
General Rules
Designing an Aggregate Mix by Applying Gradation Limits
Designing a Binder Content
Requirements for an SMA Mixture Design
Summary

Overview of SMA Design Methods
The German Method
The U.S. Method
The Czech Method
The Dutch Method
Other Methods of Design

Analyses and Laboratory Tests
Preparing Samples in a Laboratory
Draindown Testing
Filler Tests

The Production of SMA
Requirements for the Organization of an Asphalt Mixing Plant
Practical Considerations of the SMA Production Process
The Production Process
Storing the Ready-Made SMA Mixture in a Silo
SMA Mixture Production Control

Transport and Laydown of the SMA Mixture
Transport of the Mixture to a Laydown Site
Laydown Conditions
Placement of a Mixture
Compaction
Placement of SMA in Kompaktasphalt Technique
Finishing the Layer
Opening to Traffic

Problems
Longitudinal Fat Spots of Binder
Longitudinal Fat Spots of Mastic
Small Circular Fat Spots
Stabilizer Lumps
Too Closed an SMA Structure
Too Porous an SMA Structure
SMA Seepage and Permeability to Water
Problems Related to Temperature and Laying Techniques
Squeezed-Out Mastic in Wheel Paths
SMA Susceptibility to Polishing
Overdosage of an Antistrip Additive

Characteristics of the SMA Course
Rutting Resistance
Crack Resistance
Fatigue Life
Workability
Compactability
Antinoise Properties
Antiskid Properties
Durability: Water and Frost Resistance
Antispray and Light Reflection Properties
Permeability
Fuel Consumption
Economical Effectiveness

Special Applications of SMA
Airfield Pavements
SMA on Bridge Deck Structures
Thin SMA Courses
Atypical SMAs

European Standards Concerning SMA
The European Standard EN 13108-5
Definitions
Identification of an SMA Mixture
Requirements for Constituent Materials
Requirements for an SMA Mix
Temperatures of Asphalt Mixtures
Evaluation of Conformity
Factory Production Control EN 13108-21
Examples of Requirements

Afterword
References
Index