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Monitoring Alkali-Silica Reaction Significance in Nuclear Concrete Structural Members

Journal Article · · Journal of Advanced Concrete Technology
DOI:https://doi.org/10.3151/jact.16.179· OSTI ID:1784214
 [1];  [1];  [1];  [2];  [3];  [1];  [4];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. RJ Lee Group, Monroeville, PA (United States)
A large-scale testing program on alkali silica reaction (ASR)-affected concrete structural members without shear rein-forcement representative of structural members found in nuclear power plants is presented. Furthermore, three concrete specimens, designed to experience a free expansion rate of approximately 0.15% per year were fabricated and placed within a controlled environmental chamber (38 ± 1°C (100 ± 2°F) and 95 ± 5% relative humidity (RH)). Sixty-four (64) embed-ded transducers and twelve (12) long-gauge fiber-optic sensors provide evidence of strong anisotropic expansion and oriented ASR-induced cracking resulting from the confinement effect caused by the reinforcement layout and addi-tional structural boundary conditions. Surface cracking is not indicative of internal ASR-induced damage/expansion.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1784214
Journal Information:
Journal of Advanced Concrete Technology, Journal Name: Journal of Advanced Concrete Technology Journal Issue: 4 Vol. 16; ISSN 1346-8014
Publisher:
Japan Concrete InstituteCopyright Statement
Country of Publication:
United States
Language:
English

References (10)

The effects of alkali-silica reaction on the mechanical properties of concretes with three different types of reactive aggregate journal March 2016
Measuring Alkali-Silica Reaction (ASR) Microscale Damage in Large-Scale Concrete Slabs Using Nonlinear Rayleigh Surface Waves journal March 2017
Load-carrying capacity of structural members subjected to alkali-silica reactions journal January 1993
The effect of alkali reactivity on the mechanical properties of concrete journal March 2003
Effects of alkali addition on the mechanical properties and durability of concrete journal February 2005
Effect of applied stresses on alkali–silica reaction-induced expansions journal May 2006
Mechanical behavior of concretes damaged by alkali-silica reaction journal July 2008
Influence of the Alkali-Silica Reaction on the Mechanical Degradation of Concrete journal June 2016
Damage detection and characterization using long-gauge and distributed fiber optic sensors journal August 2013
The effects of restraint on ASR expansion of reinforced concrete journal March 1996

Cited By (1)

Damage Mechanism Evaluation of Large-Scale Concrete Structures Affected by Alkali-Silica Reaction Using Acoustic Emission journal November 2018

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