A Dual Concentric Ring Test for Evaluating Residual Stress Development Due of Restrained Volume Change

Published

September 1, 2010

Author(s)

John Schlitter, Andrew Senter, Dale P. Bentz, Tommy Nantung, Jason Weiss

Abstract

The standard restrained ring test (ASTM 1581-04) is a simple, economical method to evaluate a concrete mixture s susceptibility of shrinkage cracking. Unfortunately, the test only provides restraint against samples that shrink and can not be used to consider cases in which expansion occurs. Further, the conventional restrained ring test does not consider cases in which the concrete undergoes large variations in temperature since the restraint changes dimension under heating and cooling. This paper describes a test that was designed to overcome both of these limitations. This paper describes the development of a dual ring test that provides restraint for both shrinkage and expansion. In addition, the test has incorporated the ability to study thermal stresses by using a restraining ring that is stable during temperature changes. This paper will discuss the design and construction of the test and will present preliminary data that characterizes its ability to quantify and evaluate restrained expansive, shrinkage, and thermal stresses.

Citation

Cement and Concrete Composites

Volume

7

Issue

9

Pub Type

Journals

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Keywords

Autogenous shrinkage, building technology, concrete, expansion, restrained shrinkage, thermal cracking.

Citation

Schlitter, J. , Senter, A. , Bentz, D. , Nantung, T. and Weiss, J. (2010), A Dual Concentric Ring Test for Evaluating Residual Stress Development Due of Restrained Volume Change, Cement and Concrete Composites, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904697 (Accessed April 20, 2024)