Effect of slag on shear strength of calcium bentonite

Document Type

Article

Publication Date

1-1-1997

Abstract

This study was undertaken to determine the strength of calcium bentonite as affected by cement and slag. Test specimens were prepared with 15% calcium bentonite, 5%to 15% cement, and 7.5% to 10% slag. Undrained triaxial compression tests and unconfined compression tests were performed on different mixes. These test results show that regardless of the proportion of cement and slag, the peak strength occurred at strain equal to or less than 1%. The strength essentially reached its ultimate value at about 2% strain and there was little change in strength beyond this point. The strength of specimens increased as the proportion of slag to cement increased. Pore water pressure at peak strength was positive. With increasing strain and increasing proportion of slag the pore water pressure reduced in magnitude. Specimens which were not subjected to vacuum during preparation showed extremely high negative pore pressures and higher strength.

Identifier

0031224684 (Scopus)

Publication Title

ASTM Special Technical Publication

External Full Text Location

https://doi.org/10.1520/stp15639s

ISSN

00660558

First Page

16

Last Page

25

Volume

1275

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