학술논문
Precision of Tests for Assessment of the Deicer Salt Scaling Resistance of Concrete
Document Type
journal paper
Author
Source
Cement, Concrete, and Aggregates, Dec 1996, Vol. 18, No. 2, pp. 85-91.
Subject
Language
English
ISSN
0149-6123
Abstract
Some aspects of the variability of Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals (ASTM C 672) measurements are discussed in this paper. The influence of the operator's subjectivity on the visual rating is studied. The relationship between the visual rating and the cumulated mass of scaled-off particles is also analyzed. From a statistical analysis of several hundred different concrete mixtures, the variability of the test method is estimated for various types of concrete considering only the cumulated mass of scaled-off particles. Using the same statistical analysis, the precision of ASTM C 672 is finally compared to that of the Canadian brine immersion test (Precast Concrete Paving Blocks, CAN/CSA A231.2 M85) designed to assess the deicer salt scaling resistance of precast concrete elements.