| Download | - View final version: A model for hydrated Portland cement paste as deduced from sorption-length change and mechanical properties (PDF, 1.3 MiB)
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| Author | Search for: Feldman, R. F.1; Search for: Sereda, P. J.1 |
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| Affiliation | - National Research Council Canada
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| Format | Text, Article |
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| Subject | Concrete; hydrated cement; Portland cement; mechanical properties; adsorption |
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| Abstract | Recent findings in DBR and other laboratories have made it necessary here to revise the accepted model for hydrated Portland cement paste. The model recognizes surface areas and porosities obtained by N[2] adsorption as the most reliable values, and attributes many of the phenomena observed, to the behaviour of interlayer hydrate water. The bonds between and within individual "crystallites" are clearly defined; it is shown that the "inter-crystallite" bonds do not separate when exposed to physically adsorbed water. The paper describes some of the thermodynamic equations pertinent to the phenomena of adsorption, length change and creep, and some basic principles governing physical adsorption and types of hystereses. The results were obtained from two areas of work: A. Surface chemical experiments. B. Measurement of mechanical properties of compacted and cast systems of hydrated cement and gypsum. |
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| Publication date | 1969-04-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | DBR-RP-400 |
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| NRC number | NRCC 10707
NRC-IRC-3292 |
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| NPARC number | 20375117 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 53e1e9d1-4148-4dbe-a0e9-443ac9e59c42 |
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| Record created | 2012-07-23 |
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| Record modified | 2024-01-29 |
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