Influence of Cement Composition on Expansions Observed in Standard and Modified ASTM C1260 Test Procedures

This paper presents the results of a laboratory study conducted to determine the influence of cement composition on the expansions observed in standard and modified ASTM C1260 tests. Also, the effectiveness of selected mitigation measures for alkali-silica reactivity was studied by using a modified ASTM C1260 test. Two different cements with substantially different alkali levels were used in combination with a Class F fly ash and a Class C fly ash. The results obtained from tests with 89 different sources of fine aggregate were analyzed. The results from this study indicate that cement composition has a distinct influence on the expansion levels observed in the ASTM C1260 study. For a majority of the aggregates tested in this study (88%), the use of a specific cement low in alkali content resulted in higher expansion than a cement with a relatively higher alkali content, regardless of the level of reactivity of the aggregate in the standard ASTM C1260 tests. Class F fly ash was found to be more effective than Class C fly ash in reducing the expansions in the modified ASTM C1260 tests. However, the cement used in the mixture influenced the percent reduction in expansion offered by both Class F fly ash and Class C fly ash. The use of low-alkali cement with Class F and Class C fly ashes yielded larger reductions in percent expansion.

• Record URL:
  https://doi.org/10.3141/1914-07
• 
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Influence+of+Cement+Composition+on+Expansions+Observed+in+Standard+and+Modified+ASTM+C1260+Test+Procedures&author=P.+Rangaraju&author=K.+Sompura&publication_year=2005
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/156719.aspx
• Authors:
  • Rangaraju, Prasada Rao
  • Sompura, Ketan R
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 53-60
• Monograph Title: Concrete Materials 2005
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 1914
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Alkali silica reactions; Cement; Expansion; Fine aggregates; Fly ash; Laboratory tests; Test procedures
• Identifier Terms: ASTM C1260
• Uncontrolled Terms: Aggregate sources; Alkali content; Composition (Materials)
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01011207
• Record Type: Publication
• ISBN: 0309093872
• Files: TRIS, TRB, ATRI
• Created Date: Dec 16 2005 1:52PM