Direct measurement of matric suction in triaxial tests on early-age cemented paste backfill

  • Simms P
  • Grabinsky M
  • 22


    Mendeley users who have this article in their library.
  • 20


    Citations of this article.


Hydration occurring in cemented paste backfill (CPB) is shown to generate matric suction through self-desiccation. This complicates determination of the water-retention curve and mechanical properties during curing, which are important in stope design, and renders problematic the use of axis-translation testing procedure to control suctions in strength testing. An alternative is to monitor suction directly during testing. To this end, a miniature tensiometer is inserted into the base of a triaxial cell. A series of unconfined and confined tests are performed on early-age (less than two weeks old) CPB. The observed behaviour is similar to that observed in weakly cemented soils, showing a distinct tendency to dilate during shearing.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Paul Simms

  • Murray Grabinsky

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free