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Title: Detection of alkali-silica reaction swelling in concrete by staining

Abstract

A method using concentrated aqueous solutions of sodium cobaltinitrite and rhodamine B is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction (ASR). These solutions present little health or environmental risk, are readily applied, and rapidly discriminate between two chemically distinct gels; K-rich, Na--K--Ca--Si gels are identified by yellow staining, and alkali-poor, Ca--Si gels are identified by pink staining.

Inventors:
 [1];  [1]
  1. (Santa Fe, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
871471
Patent Number(s):
5739035
Assignee:
Regents of University of California (Los Alamos, NM) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
detection; alkali-silica; reaction; swelling; concrete; staining; method; concentrated; aqueous; solutions; sodium; cobaltinitrite; rhodamine; described; identify; contains; gels; formed; asr; health; environmental; risk; readily; applied; rapidly; discriminate; chemically; distinct; k-rich; na-k-ca-si; identified; yellow; alkali-poor; ca-si; pink; concentrated aqueous; aqueous solution; aqueous solutions; sodium cobalt; /436/

Citation Formats

Guthrie, Jr., George D., and Carey, J. William. Detection of alkali-silica reaction swelling in concrete by staining. United States: N. p., 1998. Web.
Guthrie, Jr., George D., & Carey, J. William. Detection of alkali-silica reaction swelling in concrete by staining. United States.
Guthrie, Jr., George D., and Carey, J. William. Thu . "Detection of alkali-silica reaction swelling in concrete by staining". United States. https://www.osti.gov/servlets/purl/871471.
@article{osti_871471,
title = {Detection of alkali-silica reaction swelling in concrete by staining},
author = {Guthrie, Jr., George D. and Carey, J. William},
abstractNote = {A method using concentrated aqueous solutions of sodium cobaltinitrite and rhodamine B is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction (ASR). These solutions present little health or environmental risk, are readily applied, and rapidly discriminate between two chemically distinct gels; K-rich, Na--K--Ca--Si gels are identified by yellow staining, and alkali-poor, Ca--Si gels are identified by pink staining.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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