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The structure of cement-stone and the use of compacts as structural models

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
FormatText, Article
Conference5th International Symposium on the Chemistry of Cement, 1968, Tokyo, Japan
SubjectConcrete; cement; mechanical properties; porosity; model tests
Abstract
The relation between hardness, modulus of elasticity and porosity was investigated in three different systems prepared from normal Type I portland cement. This study was undertaken to obtain some data on the structure of cement- stone, particularly with regard to the nature of the interparticle bonds and their effect on mechanical properties. The study also enabled the evaluation of the possible use of compacts in cement research. The three cement systems, designated as I, II, and III, cement pastes ( I) in which porosity varied from 40% to 70% and the degree of hydration from 73% to 98% (w/c ratio 0.40 to 1.20), compacted cement pastes (II) in which porosity varied within the range of 25% to 60%, and compacts of bottle hydrated cement (III) in which the porosity varied from 20% to 55% and the degree of hydration from 0% to 90% (i.e., unhydrated cement compacts were included). Test results generally supported the concept that the strength of the cement-stone is mainly derived from a particular type of interparticle bond.
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  • Proceedings of the 5th International Symposium on the Chemistry of Cement: 1968, Tokyo, Japan 3 (June 1970): 67–73.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-RP-437
NRC numberNRCC 11426
NRC-IRC-2565
NPARC number20374305
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Record identifier27516bc9-67ae-4b12-8cf6-bece53bcfccc
Record created2012-07-23
Record modified2024-01-26
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