rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Viscoelastic age-dependent analysis of restrained shrinkage stress development in early-age concrete
  name:
    name part: Lim, Seungwook
    name part: 1966-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 2002
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xiv, 178 leaves : illustrations ; 28 cm.
  abstract: In this study, effort has been placed to better understand the behavior of early-age concrete with respect to the restrained shrinkage stress development during the first days after casting. Procedures and material coefficients associated with the analysis of drying, shrinkage, and restrained stress development were refined for early-age concrete. The analysis of drying resulted in an estimation of a continuous change in the humidity profile of the concrete as a function of time and position. By measuring unrestrained free shrinkage, the shrinkage coefficient was determined for the concrete tested in this study that links the humidity changes to shrinkage deformation. The predicted free shrinkage becomes a driving force of stress development in restrained concrete. For the calculation of stress development, a new aging viscoelastic material model was proposed for early-age concrete based on the result of tensile creep tests. The degree of hydration was selected as an aging parameter of the model. For the implementation of the model for stress analysis, the incremental constitutive equations for aging viscoelastic materials were derived and encoded in a FORTRAN program named VISCON. Using this program, the response of early-age concrete subjected to restrained shrinkage was estimated in terms of stress. The results of the viscoelastic analysis showed good agreement with the test data obtained in this study.
  note: by Seungwook Lim.
  note: Vita.
  note: "Major Subject: Civil Engineering".
  note: Issued also on microfiche from University Microfilm Inc.
  note: Ph. D. Texas A&M University 2002.
  note: Includes bibliographical references (leaves 165-172).
  subject:
    topic: Major civil engineering
  identifier: 30-72487 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 030808
    record change date: 20190325110258.0
    record identifier: in00001778779