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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25406

Title: Development and Standardization of the NIST Rapid Sulphate Resistance Test
Authors: Aleksic, Mila
Advisor: Hooton, Robert Douglas
Department: Civil Engineering
Keywords: sulphate resistance
accelerated testing methods
miniature prisms
cement paste
Issue Date: 14-Dec-2010
Abstract: The NIST miniature paste prism test was developed to assess sulphate resistance of cements faster than the commonly used ASTM C 1012 test. The goal of this research is to address the current limitations regarding the NIST procedure to determine the optimum testing parameters and to establish appropriate expansion limits. A range of variables including details of specimen design, curing regime, water-to-cementitious materials ratio, and prism length were tested on the materials with a wide range of sulphate performance. The findings of the study demonstrate that even though it can yield results in only three months, the NIST test can provide an erroneous differentiation between certain cementitious materials. Reliability and repeatability of the test results can be improved by using longer specimens and longer curing times. The NIST test can be used as a preliminary screening test, but users need to be aware of its limitations.
URI: http://hdl.handle.net/1807/25406
Appears in Collections:Master
Department of Civil Engineering - Master theses

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