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Title: ASSESSMENT OF EXPERIMENTAL EVIDENCE FOR MODELS OF HYDRATED PORTLAND CEMENT
Accession Number: 00214091
Record Type: Component
Abstract: THE RELATIVE MERITS OF THE NEW AND OLD MODELS OF HYDRATED PORTLAND CEMENT ARE PRESENTED WITH AN ASSESSMENT OF PUBLISHED AND UNPUBLISHED EVIDENCE RELATING TO THE MODELS. THE CHIEF AREAS OF EVIDENCE DISCUSSED ARE THOSE PERTAINING TO SURFACE ENERGY OF CALCIUM-SILICATE-HYDRATE MATERIAL (C-S-H) BY HEAT OF SOLUTION, STOICHIOMETRY OF C-S-H, AND THE EFFECT OF INTERLAYER REHYDRATION OF D-DRIED C-S-H ON DENSITY MEASUREMENTS, C-AXIS AND HYDRATED RADII CALCULATIONS, LENGTH AND WEIGHT CHANGE ISOTHERMS, AND POROSITY AND MECHANICAL PROPERTY CORRELATIONS. A NEW TECHNIQUE OF MEASURING THE FLOW RATE OF HELIUM INTO INTERLAYER SPACES IS DISCUSSED IN TERMS OF EVIDENCE IT PRODUCES. IT IS CONCLUDED THAT THE NEW MODEL OF HYDRATED PORTLAND CEMENT MORE ACCURATELY ACCOUNTS FOR ITS NATURE AS INDICATED BY A WIDE VARIETY OF PROPERTIES. /AUTHOR/
Supplemental Notes: Sponsored by Committee on Basic Research Pertaining to Portland Cement and Concrete and presented at the 50th Annual Meeting. 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.
Monograph Title: Monograph Accession #: 01410295
Authors: FELDMAN, R FPagination: pp 8-24
Publication Date: 1971
Serial: Media Type: Digital/other
Features: Figures
(1)
; References
(38)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Materials
Files: TRIS, TRB
Created Date: Apr 17 1972 12:00AM
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