Embedded sensors for measuring environmental parameters in concrete

D. A. Lange, Z. C. Grasley, R. Rodden

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Environmental factors are major considerations of health monitoring of structures. A new system has been developed for measuring the internal relative humidity and temperature in concrete laboratory specimens and field structures. Internal relative humidity measurements in concrete are useful for evaluating shrinkage stress development and assessing structural susceptibility to durability problems. This paper describes the system, presents the essential elements of analysis that relates RH to internal stress in porous materials, and presents Held applications that shows how environment data can facilitate analysis of stress and deformation of pavement. The new system has been used in laboratory and field experiments. Advantages of the new system are summarized. Some problems encountered in measuring relative humidity, especially in the field, are discussed.

Original languageEnglish (US)
Title of host publicationAmerican Concrete Institute - Health Monitoring Systems and Sensors for Assessing Concrete at the ACI 2008 Spring Convention
Pages41-51
Number of pages11
Edition252 SP
StatePublished - Dec 1 2008
Externally publishedYes
EventHealth Monitoring Systems and Sensors for Assessing Concrete- ACI 2008 Spring Convention - Los Angeles, CA, United States
Duration: Mar 30 2008Apr 3 2008

Publication series

NameAmerican Concrete Institute, ACI Special Publication
Number252 SP
ISSN (Print)0193-2527

Other

OtherHealth Monitoring Systems and Sensors for Assessing Concrete- ACI 2008 Spring Convention
Country/TerritoryUnited States
CityLos Angeles, CA
Period3/30/084/3/08

Keywords

  • Cracking
  • Creep
  • Embedded sensors
  • Environment
  • Instrumentation
  • ReLative humidity
  • SLab curLing
  • Shrinkage
  • Temperature

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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