Abstract
This study proposes modifications to three shale durability tests to improve reproducibility, reduce the level of effort required, and better correlate the test to actual slaking characteristics. Modifications to the jar slake test reduced test variability by one-third, offering a substantial improvement in consistency, with only a slight loss in the ability of the test to predict slake durability. Analysis showed that slake index test error could be reduced or at least pinpointed by testing groups of samples, rather than single samples. Furthermore, the wet-sieving procedure should be more carefully defined. Analysis of correlations between single- and multiple-cycle slake durability tests shows that the first cycle slake durability, ID(1), is an excellent predictor of later cycles. Therefore, testing of the second cycle, ID (2), as recommended by ASTM D4664-87, is unnecessary.
Recommended Citation
P. M. Santi, "Improving the Jar Slake, Slake Index, and Slake Durability Tests for Shales," Environmental and Engineering Geoscience, vol. 4, no. 3, pp. 385 - 396, Geological Society of America, Jan 1998.
The definitive version is available at https://doi.org/10.2113/gseegeosci.iv.3.385
Department(s)
Geosciences and Geological and Petroleum Engineering
Publication Status
Available Access
Keywords and Phrases
Clay shales; Durability; Shales; Slaking
International Standard Serial Number (ISSN)
1078-7275
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Geological Society of America, All rights reserved.
Publication Date
01 Jan 1998
