Table of Contents
1. Identify the variations and differences in strength measurements of the “same” concrete using “different” standard size test specimens;
2. Explain the pros and cons of each of the standard test sizes, and whether the physical size of the test specimen or the number of samples constituting a test create significant differences between them for the assessment of the 28-day compressive strength;
3. Relate 28-day compression strength testing and the variability to quality assurance of concrete so that attendees can answer for themselves whether size matters; and
4. Consider factors other than specimen size, such as quality testing and water content controls that, perhaps more significantly, affect the production of quality concrete
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