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: Best practices for the use of siliceous river gravel in concrete paving
  title info:
    title: Use of crushed gravel in concrete paving
  name:
    name part: Liu, Juanyu.
  name:
    name part: Texas
    name part: Department of Transportation.
    name part: Research and Technology Implementation Office.
  name:
    name part: Texas Transportation Institute
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2009
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: remote
    extent: 298 pages : digital, PDF file with color illustrations
  abstract: Fracture toughness (KIC) value at early ages of concrete was used to represent the interfacial bond between aggregate and mortar of a variety of coarse aggregates types and concrete mixtures. A fractional factorial design based on Taguchis orthogonal array using four factors (i.e., aggregate type, w/cm, replacement of ultra-fine fly ash, and curing method) was selected to conduct the detailed laboratory study. The statistical analysis indicated the following decreasing rank order with respect to the relative importance of each factor to KIC: aggregate type, curing method, w/cm, and ultra-fine fly ash content. A comprehensive investigation of aggregate properties relative to physical, geometric, and chemical characteristics was conducted. The research findings indicated that the aggregate-mortar interfacial bond for a given cement paste was found not to be a simple function of any one of the aggregate properties, but a function of all three properties aggregated together. The application of utility theory to the evaluation of overall contribution of aggregate properties to the bonding performance of concrete, and feasibility of design combinations enables agencies to select the best aggregate type, modify aggregates by blending different aggregates, and optimize the design combinations for concrete paving construction, to relieve delamination and further spalling distresses. The interfacial fracture energy can be predicted once a design combination is known based on the linear relation with both concrete and mortar fracture energy. A fracture mechanics based approach was proposed with the facilitation of numerical analysis to predict the occurrence of delamination. The criterion for predicting early age delamination occurrence is that delamination occurs when KI > KIC. Through examples of practical design and construction methods, this approach is able to assess the probability of delamination occurrence, which will facilitate selection and evaluation of the effectiv…
  note: Juanyu Liu [and others].
  note: Title from PDF title screen.
  note: "Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration"--Technical report documentation p.
  note: "December 2006; Published: February 2009."
  note: "Report number FHWA/TX-07/0-4826-1"--Technical report documentation p.
  note: Electronic resource.
  note: System requirements: Adobe Acrobat Reader.
  note: Mode of access: World Wide Web.
  note: Technical report; Sept. 2003-Aug. 2006.
  note: Performed by Texas Transportation Institute, sponsored by Texas Dept. of Transportation, Research and Technology Implementation Office 0-4826
  note: Text document in PDF format.
  note: Includes bibliographical references.
  subject:
    topic: Pavements, Concrete
    topic: Materials
  subject:
    topic: Gravel
  subject:
    topic: Composite materials
    topic: Delamination
    topic: Prevention
  related item:
    title info:
      title: Research report (Austin, Tex.) ; 0-4826-1
  identifier: PB2009-108955 NTIS
  identifier: http://tti.tamu.edu/documents/0-4826-1.pdf
  record info:
    record content source: JCR
    record creation date: 090925
    record change date: 20151113115833.0
    record identifier: in00002532405