Comments on the interpretation of results from the restrained ring test

Aleksandra Z. Radlinska, Brooks Bucher, Jason Weiss

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The restrained ring test has recently been standardized (ASTM C1581-04) as a test method to assess the restrained shrinkage cracking susceptibility of a concrete mixture. Unfortunately, there is currently a lack of published information regarding the repeatability of the test. This paper quantifies the variability of the ASTM C1581-04 ring test procedure. To determine the repeatability of the standard test, 24 restrained ring specimens were cast from the same mortar mixture and stored in carefully controlled environmental conditions. Results from the restrained ring test were assessed using the same mixture proportions. The results indicate that a standard deviation of approximately 6 ue can be expected in the strain measurements from the same mixture and 8 us from different batches of the same mixture. The total coefficient of variation observed was less than 12 % (within single mixture and between different batches). A probabilistic approach was used to describe the variability associated with the age of cracking and to provide a tool that allows cracking prediction, especially when only a fraction of the ring specimens crack.

Original languageEnglish (US)
JournalJournal of ASTM International
Volume5
Issue number10
DOIs
StatePublished - Nov 1 2008

Fingerprint

Concrete mixtures
Strain measurement
Mortar
Cracks

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Materials Science(all)
  • Nuclear Energy and Engineering
  • Engineering(all)
  • Public Health, Environmental and Occupational Health

Cite this

@article{88b56da3a7f1474f9c11f18a374d9974,
title = "Comments on the interpretation of results from the restrained ring test",
abstract = "The restrained ring test has recently been standardized (ASTM C1581-04) as a test method to assess the restrained shrinkage cracking susceptibility of a concrete mixture. Unfortunately, there is currently a lack of published information regarding the repeatability of the test. This paper quantifies the variability of the ASTM C1581-04 ring test procedure. To determine the repeatability of the standard test, 24 restrained ring specimens were cast from the same mortar mixture and stored in carefully controlled environmental conditions. Results from the restrained ring test were assessed using the same mixture proportions. The results indicate that a standard deviation of approximately 6 ue can be expected in the strain measurements from the same mixture and 8 us from different batches of the same mixture. The total coefficient of variation observed was less than 12 {\%} (within single mixture and between different batches). A probabilistic approach was used to describe the variability associated with the age of cracking and to provide a tool that allows cracking prediction, especially when only a fraction of the ring specimens crack.",
author = "Radlinska, {Aleksandra Z.} and Brooks Bucher and Jason Weiss",
year = "2008",
month = "11",
day = "1",
doi = "10.1520/JAI101944",
language = "English (US)",
volume = "5",
journal = "Journal of ASTM International",
issn = "1546-962X",
publisher = "American Society for Testing and Materials",
number = "10",

}

Comments on the interpretation of results from the restrained ring test. / Radlinska, Aleksandra Z.; Bucher, Brooks; Weiss, Jason.

In: Journal of ASTM International, Vol. 5, No. 10, 01.11.2008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comments on the interpretation of results from the restrained ring test

AU - Radlinska, Aleksandra Z.

AU - Bucher, Brooks

AU - Weiss, Jason

PY - 2008/11/1

Y1 - 2008/11/1

N2 - The restrained ring test has recently been standardized (ASTM C1581-04) as a test method to assess the restrained shrinkage cracking susceptibility of a concrete mixture. Unfortunately, there is currently a lack of published information regarding the repeatability of the test. This paper quantifies the variability of the ASTM C1581-04 ring test procedure. To determine the repeatability of the standard test, 24 restrained ring specimens were cast from the same mortar mixture and stored in carefully controlled environmental conditions. Results from the restrained ring test were assessed using the same mixture proportions. The results indicate that a standard deviation of approximately 6 ue can be expected in the strain measurements from the same mixture and 8 us from different batches of the same mixture. The total coefficient of variation observed was less than 12 % (within single mixture and between different batches). A probabilistic approach was used to describe the variability associated with the age of cracking and to provide a tool that allows cracking prediction, especially when only a fraction of the ring specimens crack.

AB - The restrained ring test has recently been standardized (ASTM C1581-04) as a test method to assess the restrained shrinkage cracking susceptibility of a concrete mixture. Unfortunately, there is currently a lack of published information regarding the repeatability of the test. This paper quantifies the variability of the ASTM C1581-04 ring test procedure. To determine the repeatability of the standard test, 24 restrained ring specimens were cast from the same mortar mixture and stored in carefully controlled environmental conditions. Results from the restrained ring test were assessed using the same mixture proportions. The results indicate that a standard deviation of approximately 6 ue can be expected in the strain measurements from the same mixture and 8 us from different batches of the same mixture. The total coefficient of variation observed was less than 12 % (within single mixture and between different batches). A probabilistic approach was used to describe the variability associated with the age of cracking and to provide a tool that allows cracking prediction, especially when only a fraction of the ring specimens crack.

UR - http://www.scopus.com/inward/record.url?scp=67549149455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67549149455&partnerID=8YFLogxK

U2 - 10.1520/JAI101944

DO - 10.1520/JAI101944

M3 - Article

AN - SCOPUS:67549149455

VL - 5

JO - Journal of ASTM International

JF - Journal of ASTM International

SN - 1546-962X

IS - 10

ER -