Performance Testing of Hydraulic Cements: Measuring Sulfate Resistance.

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Bibliographic Details
Title:	Performance Testing of Hydraulic Cements: Measuring Sulfate Resistance.
Authors:	Ferraris, Chiara F.¹ Chiara.ferraris@nist.gov, Stutzman, Paul E.¹ Paul.stutzman@nist.gov, Peltz, Max¹ Max.peltz@nist.gov
Source:	Journal of Research of the National Institute of Standards & Technology. 2018, Vol. 123, p1-14. 14p.
Subjects:	Cement testing, Sodium sulfate, Nondestructive testing, Portland cement, Construction industry
Abstract:	The sulfate resistance of cements used in the construction industry is traditionally assessed by measuring the expansion of a prism of 280 mm (11inch) length and 25 mm (1 inch) square cross section immersed in a sodium sulfate solution for at least one year. The duration of the experiment limits this test from being used as a performance-based determination of innovative mixtures of cementitious materials. In response to the need for a more rapid test protocol, the National Institute of Standards and Technology (NIST) has developed a new test method that measures the expansion of smaller bars (10 mm x 10 mm x 60 mm) made with neat cement paste. With these bars, similar expansion is achieved in less than 3 months, reducing the test duration by a factor of at least 4. This accelerated test method provides more rapid results consistent with the traditional test procedure, allowing for a shorter decision time and the screening of more materials. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	The sulfate resistance of cements used in the construction industry is traditionally assessed by measuring the expansion of a prism of 280 mm (11inch) length and 25 mm (1 inch) square cross section immersed in a sodium sulfate solution for at least one year. The duration of the experiment limits this test from being used as a performance-based determination of innovative mixtures of cementitious materials. In response to the need for a more rapid test protocol, the National Institute of Standards and Technology (NIST) has developed a new test method that measures the expansion of smaller bars (10 mm x 10 mm x 60 mm) made with neat cement paste. With these bars, similar expansion is achieved in less than 3 months, reducing the test duration by a factor of at least 4. This accelerated test method provides more rapid results consistent with the traditional test procedure, allowing for a shorter decision time and the screening of more materials. [ABSTRACT FROM AUTHOR]
ISSN:	1044677X
DOI:	10.6028/jres.123.010