ACCELERATED METHODS OF ESTIMATING THE STRENGTH OF CONCRETE

This paper gives the results of an experimental investigation to develop equations for estimating the portntial strength of concrete by using the accelerated-curing methods recommended by the American Society for Testing and Materials. Cylinders made from 21 different batches of concrete were tested. Ranges of variables included in this investigation were types of cements (1,2, and K); types of molds (steel, plastic, and cardboard); water-cement ratios (by weight), 0.41 to 0.72; aggregate-cement ratios (by weight), 2.5 to 4.1; maximum size of coarse aggregate, 1 in. (25.4 mm); and the 28-day compressive strength, 3,400 to 6,800 psi (23 500 to 46 900 KPa). An equation and correlation curves are presented for the locally used materials and mixes relating the strength of types 1,2, and K cement concretes obtained in the accelerated-curing methods and the 28-day strength obtained with standard-curing conditions. Based on the results from this investigation and those of other investigators from various parts of the world, and equation applicable universally with reasonable accuracy is presented for estimating the potential strength of concrete by using accelerated-curing methods. Equations based on maturity concept are also presented to predict the strength of concrete when the water-cement ratio, duration, and temperature of curing are known. The results of this investigation are compared and analyzed in relation to published works.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/558/558-004.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=ACCELERATED+METHODS+OF+ESTIMATING+THE+STRENGTH+OF+CONCRETE&author=V.+Ramakrishnan&author=J.+Dietz&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309024668
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Mechanical Properties of Concrete.Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Ramakrishnan, V
  • Dietz, J
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 29-44
• Monograph Title: Recent developments in accelerated testing and maturity of concrete
• Serial:
  • Transportation Research Record
  • Issue Number: 558
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accelerated tests; Accuracy; Aggregates; Cement; Compressive strength; Concrete; Concrete curing; Concrete tests; Correlation analysis; Equations; Estimating; Forming; Methodology; Mix design; Specimens; Strength of materials; Temperature; Water cement ratio
• Uncontrolled Terms: Aggregate size; Maturity
• Old TRIS Terms: Aggregate cement ratio; Molds (Forming)
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00131690
• Record Type: Publication
• ISBN: 0309024668
• Files: TRIS, TRB
• Created Date: Jun 5 1976 12:00AM