The Effects of Temperature and Relative Humidity on Static Strength of Hydrated Portland Cement

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Volume 4, Issue 1 (January 1976)

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ISSN: 0090-3973
Page Count: 13

The Effects of Temperature and Relative Humidity on Static Strength of Hydrated Portland Cement
Barrick, JE
Assistant project engineer, E. D'Appolonia Consulting Engineers, Inc., Pa.

Krokosky, EM
Professor of civil engineering, Carnegie-Mellon University, Pa.

Abstract

This paper delineates the effects of temperature and relative humidity on static strength (fatigue) of hydrated portland cement mortar. An experimental program involving the static loading of small cement-sand beams at varying conditions of temperature and relative humidity was undertaken to obtain information on the time required for fracture. This data was analyzed with a statistical procedure developed for truncated, lognormal distributions. The results are presented as cumulative probability distributions. A stress-corrosion mechanism dependent on the presence of calcium hydroxide is postulated as a result of this study.

Keywords:
portland cements, humidity, temperature, time-delayed failure, static strength

Paper ID: JTE10509J
DOI: 10.1520/JTE10509J
ASTM International is a member of CrossRef.

Author Title The Effects of Temperature and Relative Humidity on Static Strength of Hydrated Portland Cement Symposium , 0000-00-00 Committee C01

		Home Journals STPs Manuals Topics Subscriptions/Pricing Digital Library / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 4, Issue 1 (January 1976) Click here to download this paper now for $25 PDF (552K) View License Agreement ISSN: 0090-3973 Page Count: 13 The Effects of Temperature and Relative Humidity on Static Strength of Hydrated Portland Cement Barrick, JE Assistant project engineer, E. D'Appolonia Consulting Engineers, Inc., Pa. Krokosky, EM Professor of civil engineering, Carnegie-Mellon University, Pa. Abstract This paper delineates the effects of temperature and relative humidity on static strength (fatigue) of hydrated portland cement mortar. An experimental program involving the static loading of small cement-sand beams at varying conditions of temperature and relative humidity was undertaken to obtain information on the time required for fracture. This data was analyzed with a statistical procedure developed for truncated, lognormal distributions. The results are presented as cumulative probability distributions. A stress-corrosion mechanism dependent on the presence of calcium hydroxide is postulated as a result of this study. Keywords: portland cements, humidity, temperature, time-delayed failure, static strength Paper ID: JTE10509J DOI: 10.1520/JTE10509J ASTM International is a member of CrossRef. Author Title The Effects of Temperature and Relative Humidity on Static Strength of Hydrated Portland Cement Symposium , 0000-00-00 Committee C01