THE EFFECT OF AGGREGATE SHAPE UPON THE STRENGTH OF STRUCTURAL LIGHTWEIGHT-AGGREGATE CONCRETE

The influence of the shape of a lightweight aggregate (A sintered fly-ash) upon the compressive strength of lightweight-aggregate concrete is described. The effective strength of the lightweight aggregate was calculated by extrapolation from the Bache-Christensen model. It is shown that: (A) the compressive strength of lightweight-aggregate concrete depends upon the shape of the aggregate particles- the concrete tested with rounded aggregate (N = 0.40) had a compressive strength about 6 to 8 N/MM2 greater than those with elongated form (length/thickness ratio 4.0); (B) the effective strength of lightweight aggregate depends upon the shape of the aggregate particles-the rounded aggregate particles used had a strength of approximately 25.0 N/MM2 and the elongated had strengths of approximately 17.5 N/MM2 and 20.0 N/MM2 for length/thickness ratios of 4 and 2, respectively. /AUTHOR/

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  • Corporate Authors:

    An Foras Forbartha

    St Martin's House, Waterloo Road
    Dublin 4,   Ireland 
  • Authors:
    • Czuryszkiewicz, A
  • Publication Date: 1973

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 81-86
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00083291
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 29 1975 12:00AM