Work Item
ASTM WK71838

New Practice for Shape Analysis of Proppant Materials by Direct Imaging

1. Scope

2.1 Scope The scope of the Committee shall be: The promotion of knowledge; stimulation of research; the development of specifications and methods for sampling and testing; and the development of terminology, definitions, and practices relating to the physical and chemical properties and behavior of soil, rock, and the fluids contained therein. Included are the physical and chemical properties and behavior of: soil-like materials and fluids occupying the pore spaces, fissures and other voids in soil and rock insofar as such fluids may influence the properties, behavior and uses of the soil and rock materials. Excluded are the uses of rock for building stone and for constituent materials in portland cement and bituminous paving and structures coming under the jurisdiction of other committees of the Society.

2.2 Interest Area The areas of interest of the Committee are soil, rock, powders, and such materials that may be intimately associated with soil and rock. . It will be the policy of this Committee to avoid, insofar as possible, dealing with methods of design of engineered structures and all those features of general practice in the use of soil and rock which may not involve the development of standards. It will, however, be considered within the scope of the Committee's work to promote by every desirable means the close cooperation of other organizations and committees whose field of endeavor is closely allied to that of the Committee.


particle shape, proppant, API RP 19C


The assessment of particle shape is currently an objective method whereby the operator selects 20 particles at random from the sample material and visually compares them to a chart of shapes (Krombein-Sloss chart). The use of imaging technology will enable each particle measured to have a shape factor assigned to it based on the software categorizing each particle according to the Krombein-Sloss chart which will be read into the software and used for comparison on a particle by particle basis.

The title and scope are in draft form and are under development within this ASTM Committee.


Developed by Subcommittee: D18.26

Committee: D18

Staff Manager: Katerina Koperna

Work Item Status

Date Initiated: 02-06-2020

Technical Contact: Paul O'Brien

Item: 000