Prediction of early age curling in thin concrete topping over wood floor systems

Download
  1. (PDF, 3 MB)
  2. Get@NRC: Prediction of early age curling in thin concrete topping over wood floor systems (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1139/l02-054
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleCanadian Journal of Civil Engineering
Volume29
IssueAugust 4
Pages622626; # of pages: 5
Subjectfinite element analysis, concrete topping, wood floor, curing, shrinkage; Concrete
AbstractThis paper presents finite element simulations of curling of unreinforced concrete topping laid over woodfloor systems. The finite analysis consists of two parts. The first part calculates the relative moisture distribution with respect to the age of the concrete, while the second determines the topping curling deformation based on modulus of elasticity, density, and shrinkage of the concrete. With the finite element model the curling profile at any point in time can be predicted. Predictions agree reasonably well with measurements from a full-sized wood floor with a thin concrete topping. A model-based parametric study was performed. For the floor size investigated the results of the parametric study indicate that curling is greatly influenced by topping thickness and relative humidity of the surrounding air. Although the modelling as discussed is a preliminary approach, it provides a basis for further enhancements thatwill address factors such as creep and relaxation of concrete and deformation of the underlying floor system.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number45726
15009
NPARC number20378992
Export citationExport as RIS
Report a correctionReport a correction
Record identifier796ad6e7-6e58-4d90-aacc-2eeb3eb285b8
Record created2012-07-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)