Title:
Compressive Strength Measurement With the Stoll Tork Test
Author(s):
Ulrich W. Stoll
Publication:
Concrete International
Volume:
7
Issue:
12
Appears on pages(s):
42-47
Keywords:
compressive strength; concretes; evaluation;
nondestructive tests; tests.
DOI:
Date:
12/1/1985
Abstract:
The Stoll Tork Test (STT) is a new, nondestructive means for assessing the compressive strength within a concrete structure. The prototype device is comprised of a special bolt extension and small, removable cleated spindle which is positioned in the plastic concrete. The configuration assures that at the desired moment, a small aliquot of hardened concrete mortar can be subjected to a semi-confined compressive stress via a twisting force applied by a conventional torque wrench with a memory dial.