Long term strength development of massive concrete
2006
Hattori, K.(Tottori Univ. (Japan). Faculty of Agriculture) | Sato, S. | Ogata, H. | Nonaka, T.
In this research, strength development of massive concrete specimens, that have comparatively equal unit cement amount to the actual huge concrete structures, were evaluated with the pulse velocity method and extracted cores from the surface and center part of specimens. From the test results of standard cured specimens, it was confirmed that the strength development of low cement content concrete showed slight increment after age 56 days. Applying the pulse velocity method to massive concrete specimens from their initial age, it was possible to evaluate the strength development. Furthermore, it was confirmed that the strength development was influenced from the temperature history at the initial age of concrete. From the test results of cores extracted from massive concrete specimens, test age of standard specimens for managing the strength could be enough at age 56 days, as well as it was necessary to manage the temperature at the initial ages for the affordable development of compressive strength.
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