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:
    non sort: A
    title: New Protocol for Evaluating Concrete Curing Effectiveness
  name:
    name part: Sun, Peizhi
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Zollinger, Dan G.
    name part: 1952-
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2013
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Excessive early-age concrete surface moisture evaporation causes many problems of concrete pavements, such as plastic shrinkage cracking and delamination; the use of liquid membrane-forming curing compounds is one of the most prevalent methods to mitigate the issues. However, the present standard test, ASTM C 156-98, "Standard Test Method of Water Retention by Concrete Curing Materials" has some inherent limitations in assessing the curing effectiveness of concrete. To better apply curing practices and qualify the curing compound, a new evaluation protocol is introduced in this study. The new protocol consists of using measured relative humidity and temperature to calculate an effectiveness index (EI) which serves as an indicator of the effectiveness of curing. Moistures loss and surface abrasion resistance measurements were made on concrete specimen, and were found to have significant correlation with EI, where higher EI were associated with lower moisture loss and higher surface abrasion resistance. EI was also found to be sensitive to ambient wind condition, types of curing compound and the application rate of the curing compound. Dielectric constant (DC) measurements were also made on concrete specimens indicating the free moisture content on the surface concrete. The DC measurements were also found to differentiate the quality of curing under different ambient conditions, with various types of the curing compounds and the w/c of the concrete mixture. The utility of using the new protocol to assess concrete curing compound effectiveness was also evaluated under the field condition. Both EI and DC measurements showed potentials to distinguish the curing quality for concrete pavement construction. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151295
  note: by Peizhi Sun.
  note: "Major Subject: Civil Engineering."
  note: Includes vita.
  note: Master of Science Texas A & M University 2013 http://hdl.handle.net/1969.1/151295
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Civil Engineering
  subject:
    topic: concrete
  subject:
    topic: concrete curing
  subject:
    topic: curing compounds
  identifier: http://hdl.handle.net/1969.1/151295
  record info:
    record content source: TXA
    record creation date: 140303
    record change date: 20151206092221.0
    record identifier: in00003454932
    language of cataloging:
      language term: eng