Comprehensive System for Characterising Granular Materials

Comprehensive System for Characterising Granular Materials
Author:
Publisher:
Total Pages: 12
Release: 2003
Genre:
ISBN:

The new 2002 AASHTO Guide for Pavement Design advocates the use of the resilient modulus parameter for the characterization of granular materials used as base and sub-base layers in flexible pavements. The multitude of factors that affects the resilient behaviour of granular material makes the determination of the resilient modulus at different loading and physical conditions a critical factor for the pavement design process. This calibration task requires the availability of a robust system capable of producing the needed results in a timely and effective fashion. The current paper reports on recent research activities at the National Research Council, which aim at providing tools that can be utilised to carry out the calibration process. The objective of the research program is to establish database of resilient moduli for the different types of granular materials used in the Canadian Provinces. The research program combines both laboratory testing and numerical techniques to develop the required database. The paper presents an overview of the characterization system together with typical results obtained. For the covering abstract of this conference see ITRD number E211395.

Behaviour of Granular Materials

Behaviour of Granular Materials
Author: Bernard Cambou
Publisher: Springer
Total Pages: 403
Release: 2014-05-04
Genre: Technology & Engineering
ISBN: 370912526X

This book presents a complete and comprehensive analysis of the behaviour of granular materials including the description of experimental results, the different ways to define the global behaviour from local phenomena at the particle scale, the various modellings which can be used for a D.E.M. analysis to solve practical problems and finally the analysis of strain localisation. The concepts developed in this book are applicable to many kinds of granular materials considered in civil, mechanical or chemical engineering.

Granular Materials Under Shock and Blast Loading

Granular Materials Under Shock and Blast Loading
Author: Padmanabha Vivek
Publisher: Springer Nature
Total Pages: 141
Release: 2019-10-31
Genre: Technology & Engineering
ISBN: 9811504385

This volume discusses the fundamental dynamic behaviour of granular materials, in particular cohesionless sand, when subjected to shock and blast wave loading. The contents of the book are mainly divided into three parts based on the type of loading imparted to the granular materials: Shock-wave loading (step pulse); Air-blast loading (Friedlander wave); Buried-blast loading. It provides a comprehensive review of the available testing methods, along with the necessary diagnostic measurements for material characterization, making it useful for researchers working in the area of blast protection and Impact engineering.

Characterizing Granular Material in Aerial Application

Characterizing Granular Material in Aerial Application
Author: ME. Teske
Publisher:
Total Pages: 15
Release: 2003
Genre: Granular material
ISBN:

The ASTM Standard: Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides (E726-01) is the only ASTM standard that specifically addresses the characterization of nonspherical particles. To our knowledge there is no standard for particle size distribution measurements by laser diffraction or for particle sphericity measurements by any means to complete the description of the granular material. The present paper reviews a modeling effort that effectively characterizes and then represents the behavior of nonspherical particles during aerial application, highlights the difficulties inherent in interpreting light scattering by nonspherical particles, and suggests a laboratory experiment that accurately recovers particle sphericity. Model revisions enable the user to select the granular application technique from a menu of options once the granular material has been adequately parameterized. Quantitative comparisons are made with available field data to demonstrate the implementation of the several available granular material delivery systems. Notice is made that a standard should be developed for measuring (1) particle size distributions using laser diffraction instruments, and (2) particle sphericity with a technique suggested in the paper.

Handbook of Granular Materials

Handbook of Granular Materials
Author: Scott V. Franklin
Publisher: CRC Press
Total Pages: 509
Release: 2016-03-09
Genre: Science
ISBN: 146650997X

Granular systems arise in a variety of geological and industrial settings, from landslides, avalanches, and erosion to agricultural grains and pharmaceutical powders. Understanding the underlying physics that governs their behavior is the key to developing effective handling and transport mechanisms as well as appropriate environmental policies.Han

Pesticide Formulations and Application Systems

Pesticide Formulations and Application Systems
Author: G. C. Volgas
Publisher: ASTM International
Total Pages: 265
Release: 2003-12
Genre:
ISBN: 0803134681

"This book represents the work that was presented at the 23rd Symposium on Pesticide Formulations and Application Systems, Oct. 15 & 16, 2002 in Norfolk, VA. The ASTM E35.22 Subcommittee sponsors this symposium annually in an attempt to deliver pertinent and updated information to agrochemical formulators. The work of several authors from private industry, government and academia is well represented here in an overview of recent pesticide technology."

Characterisation of Bulk Solids

Characterisation of Bulk Solids
Author: Don McGlinchey
Publisher: John Wiley & Sons
Total Pages: 280
Release: 2009-02-12
Genre: Science
ISBN: 1405143630

Handling of powders and bulk solids is a critical industrial technology across a broad spectrum of industries, from minerals processing to bulk and fine chemicals, and the food and pharmaceutical industries, yet is rarely found in the curricula of engineering or chemistry departments. With contributions from leading authors in their respective fields, Characterisation of Bulk Solids provides the reader with a sound understanding of the techniques, importance and application of particulate materials characterisation. It covers the fundamental characteristics of individual particles and bulk particulate materials, and includes discussion of a wide range of measurement techniques, and the use of material characteristics in design and industrial practice. The reader will then be in a better position to diagnose solids handling and processing problems in industry, and to deal with experts and equipment suppliers from an informed standpoint. Written for post-graduate engineers, chemical scientists and technologists at all stages of their industrial career, the book will also serve as an ideal primer in any of the specialist areas to inform further study.