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Monitoring accelerated alkali-silica reaction in concrete prisms with petrography and electrical conductivity measurements

Journal Article · · Materials and Structures
 [1];  [2];  [3];  [4];  [5];  [6];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); University of Illinois, Chicago, IL (United States); DRP, A Twinning Company, Boulder, CO (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); University of Illinois, Chicago, IL (United States)
  3. Durability Engineers, Chicago, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Pennsylvania State Univ., State College, PA (United States)
  6. University of Illinois, Chicago, IL (United States)
We report deterioration of concrete due to alkali-silica reaction (ASR) involves a reaction between alkaline ions in the cement pore solution and non-crystalline silica found in many aggregates. Diagnosing and quantifying deterioration due to ASR in concrete currently requires destructive testing for microscopy examinations. In this paper, electrical conductivity is investigated qualitatively as an alternative non-destructive evaluation (NDE) method of ASR in hardened concrete. The study was performed using an unrestrained set of small concrete prism specimens made with highly reactive small aggregates, and kept in an environmental chamber according to ASTM C1293 standard. In a companion study, destructive petrography and damage rating index (DRI) assessment, and pore solution extraction and analysis were performed on the same set of accelerated ASR specimens. The results show that temporal evolution of nondestructive bulk resistivity is linearly correlated with destructive DRI score.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Argonne National Laboratory (ANL), Lemont, IL (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1885000
Journal Information:
Materials and Structures, Journal Name: Materials and Structures Journal Issue: 4 Vol. 55; ISSN 1359-5997
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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