Examining the Required Cement Content

Portland cement is a significant component in a concrete mixture. For concrete used in Portland cement concrete pavement (PCCP), Class S, and Class S(AE) concrete, the Arkansas Department of Transportation specifies a minimum cementitious material content of 564 lb/yd³ and 611 lb/yd³ , respectively. Prior research conducted at the University of Arkansas, TRC0603, indicated concrete mixtures used in five bridge decks throughout Arkansas achieved the required 28-day strength at seven days, and the measured compressive strength at 28 days was 30% greater than required. The use of high strength concrete may increase cracking and consequently reduce the durability of the pavement, structure, or bridge deck. Therefore, a reduction of the current cementitious content to a minimum level at which the concrete can meet the requirements of workability, compressive strength, and durability is an essential assignment. In addition, a reduction of the cementitious content can partially reduce construction costs, because cement is the most expensive ingredient in concrete. Using less cement within the concrete mixtures also lessens the negative impact on the environment due to the production of cement accounting for a large portion of total greenhouse gases generated by the production of concrete and its ingredients. This project will examine reducing the required cement content for PCCP, Class S, and Class S(AE) concrete.

  • Record URL:
  • Corporate Authors:

    University of Arkansas, Fayetteville

    Department of Civil Engineering
    Fayetteville, AR  United States  72701

    Arkansas Department of Transportation

    Transportation Research Committee
    10324 I-30
    Little Rock, AR  United States  72209
  • Authors:
    • Casillas, Bryan
    • Almutairi, Waleed
    • Lebow, Caleb
    • Hale, W Micah
  • Publication Date: 2020-6

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 83p

Subject/Index Terms

Filing Info

  • Accession Number: 01765578
  • Record Type: Publication
  • Report/Paper Numbers: TRC1602
  • Files: TRIS, ATRI, STATEDOT
  • Created Date: Feb 1 2021 2:15PM