KUKU

KU ScholarWorks

  • myKU
  • Email
  • Enroll & Pay
  • KU Directory
    • Login
    View Item 
    •   KU ScholarWorks
    • Engineering
    • Infrastructure Research Institute Scholarly Works
    • View Item
    •   KU ScholarWorks
    • Engineering
    • Infrastructure Research Institute Scholarly Works
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Variation of Concrete Strength, Permeability, and Porosity due to Specimen Type, Season, and Age

    Thumbnail
    View/Open
    SM Report No. 120.pdf (611.0Kb)
    Issue Date
    2017-01
    Author
    O’Reilly, Matthew
    Darwin, David
    Sperry, Jayne
    Browning, JoAnn
    Publisher
    University of Kansas Center for Research, Inc.
    Type
    Technical Report
    Is part of series
    SM Report;120
    Published Version
    https://iri.ku.edu/reports
    Metadata
    Show full item record
    Abstract
    Time and curing conditions may impact the strength and permeability of concrete. The strength and permeability of concrete with and without supplementary cementitious materials (SCMs) were evaluated as a function of specimen type, season during which construction occurred, and age. Three concrete mixtures in which the cementitious material consisted of 100% portland cement, 65% portland cement and 35% slag cement, or 60% portland cement, 25% slag cement, and 15% Class C fly ash were evaluated. Pavement slabs containing each mixture were cast in the summer, fall, and spring, along with companion 4 × 8 in. cylinders, to determine the effect of seasonal variations in environmental conditions on the strength and permeability of the concrete. Cylinders were cured in both the laboratory and the field, and cores were taken from each slab. Specimens were evaluated for compressive strength, ionic conductivity using the rapid chloride permeability (RCP) test, and void content using the boil test at ages of 28, 56, 90, 180, 360, and 720 days. Equations are presented that characterize the change in strength, ionic conductivity, and porosity over time, and relationships between lab-cured cylinder values and values from field-cured cylinders and cores for compressive strength, RCP, and boil test were established. The study demonstrates that concrete cast in moderate temperatures exhibited greater compressive strength, lower charge passed in the RCP test, and a lower percentage of voids in the boil test than concrete cast in high or low temperatures; the use of slag cement or slag cement and Class C fly ash as partial replacements for portland cement lessened the negative impact of high temperatures on these properties, but was detrimental to the early age properties of concrete cast in cold temperatures. Cores and field-cured cylinders exhibited lower compressive strength and greater ionic conductivity and voids than lab-cured cylinders. The equations developed in this report reasonably predict the change in strength, charge passed, and percentage of voids over time. No correlation was found between results from the boil test and results from the RCP test.
    URI
    http://hdl.handle.net/1808/25724
    Collections
    • Infrastructure Research Institute Scholarly Works [320]
    Citation
    O’Reilly, M., Darwin, D., Sperry, J., and Browning, J., “Variation of Concrete Strength, Permeability, and Porosity due to Specimen Type, Season, and Age,” SM Report No. 120, University of Kansas Center for Research, Inc., Lawrence, Kansas, January 2017, 78 pp.

    Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.


    We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.


    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    Browse

    All of KU ScholarWorksCommunities & CollectionsThis Collection

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    The University of Kansas
      Contact KU ScholarWorks
    Lawrence, KS | Maps
     
    • Academics
    • Admission
    • Alumni
    • Athletics
    • Campuses
    • Giving
    • Jobs

    The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, gender identity, gender expression and genetic information in the University’s programs and activities. The following person has been designated to handle inquiries regarding the non-discrimination policies: Director of the Office of Institutional Opportunity and Access, IOA@ku.edu, 1246 W. Campus Road, Room 153A, Lawrence, KS, 66045, (785)864-6414, 711 TTY.

     Contact KU
    Lawrence, KS | Maps