Effect of Limestone and Inorganic Processing Addition on the Performance of Concrete for Pavement and Bridge Decks

The Illinois Department of Transportation (IDOT) is making several changes to concrete mix designs, using revisions to cement specification ASTM C150/AASHTO M 85 and ASTM C465/AASHTO M 327. These proposed revisions will enable use of more sustainable materials for concrete pavements, overlays, and bridge decks. Accordingly, a study was conducted by the University of Illinois at Chicago (UIC) to test the performance of concrete batched with cement comprising less (conventional) and more (modified) than 5% by weight of limestone and inorganic processing additions (IPA) specified in ASTM C465/AASHTO M 327, and/or insoluble residue (IR) content above the specified limit by ASTM C150. Twenty-four concrete mixes with different cementitious combinations and aggregates were developed for this study. Each cement source was batched in a concrete mixture by replacing 30% of the total cement content with fly ash or slag. Also, each cementitious combination was batched with fine aggregates (natural or combined sand) and coarse aggregate (crushed limestone). The study included measuring fresh properties such as slump, air content, unit weight, and setting time. The hardened properties included measuring the strength and durability for each concrete mix combination. The strength results were measured in terms of compressive and flexural strength, and the durability results were measured in terms of rapid chloride penetration resistance (coulombs) and water permeability (DIN 1048). The study found similar performance in terms of strength and durability of concrete between the conventional and modified cements and demonstrated their performance with fly ash or slag replacements and fine aggregate types.

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• Supplemental Notes:
  • This paper was sponsored by TRB committee AFN20 Properties of Concrete.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Ibrahim, Mustapha A
  • Issa, Mohsen A
  • Al-Obaidi, Mustafa
  • Huang, John
  • Dahhan, Abdul
  • Lopez, Carmen
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 17p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Admixtures; Air content; Bridge decks; Compressive strength; Concrete pavements; Fly ash; Inorganic compounds; Limestone; Mix design
• Identifier Terms: Illinois Department of Transportation
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements; I32: Concrete;

Filing Info

• Accession Number: 01519125
• Record Type: Publication
• Report/Paper Numbers: 14-4801
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Mar 24 2014 12:01PM